Author: "G., Efstathiou" - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"G., Efstathiou"' showing total 127 results

Start Over Author "G., Efstathiou"

127 results on '"G., Efstathiou"'

1. Peakon solutions of a b-Novikov equation

Author: Aggeliki G. Efstathiou and Eugenia N. Petropoulou
Subjects: b-novikov equation, peakon, approximate solution, homotopy analysis method, Mathematics, QA1-939, Engineering (General). Civil engineering (General), TA1-2040
Abstract: The homotopy analysis method is applied to a b-Novikov equation in order to obtain analytic approximations of its peakon solution for various values of b. The results demonstrate that there is an excellent agreement between the approximate solution and the known exact peakon solution of the equation. Moreover, the amplitude of the peakon is approximated and a conservation property of the obtained solution is validated.
Published: 2022
Full Text: View/download PDF

2. Peakons of Novikov Equation via the Homotopy Analysis Method.

Author: Aggeliki G. Efstathiou and Eugenia N. Petropoulou
Published: 2021
Full Text: View/download PDF

3. Cosmology from cosmic shear with Dark Energy Survey Science Verification data

Author: T. Abbott, F. B. Abdalla, S. Allam, A. Amara, J. Annis, R. Armstrong, D. Bacon, M. Banerji, A. H. Bauer, E. Baxter, M. R. Becker, A. Benoit-Lévy, R. A. Bernstein, G. M. Bernstein, E. Bertin, J. Blazek, C. Bonnett, S. L. Bridle, D. Brooks, C. Bruderer, E. Buckley-Geer, D. L. Burke, M. T. Busha, D. Capozzi, A. Carnero Rosell, M. Carrasco Kind, J. Carretero, F. J. Castander, C. Chang, J. Clampitt, M. Crocce, C. E. Cunha, C. B. D’Andrea, L. N. da Costa, R. Das, D. L. DePoy, S. Desai, H. T. Diehl, J. P. Dietrich, S. Dodelson, P. Doel, A. Drlica-Wagner, G. Efstathiou, T. F. Eifler, B. Erickson, J. Estrada, A. E. Evrard, A. Fausti Neto, E. Fernandez, D. A. Finley, B. Flaugher, P. Fosalba, O. Friedrich, J. Frieman, C. Gangkofner, J. Garcia-Bellido, E. Gaztanaga, D. W. Gerdes, D. Gruen, R. A. Gruendl, G. Gutierrez, W. Hartley, M. Hirsch, K. Honscheid, E. M. Huff, B. Jain, D. J. James, M. Jarvis, T. Kacprzak, S. Kent, D. Kirk, E. Krause, A. Kravtsov, K. Kuehn, N. Kuropatkin, J. Kwan, O. Lahav, B. Leistedt, T. S. Li, M. Lima, H. Lin, N. MacCrann, M. March, J. L. Marshall, P. Martini, R. G. McMahon, P. Melchior, C. J. Miller, R. Miquel, J. J. Mohr, E. Neilsen, R. C. Nichol, A. Nicola, B. Nord, R. Ogando, A. Palmese, H. V. Peiris, A. A. Plazas, A. Refregier, N. Roe, A. K. Romer, A. Roodman, B. Rowe, E. S. Rykoff, C. Sabiu, I. Sadeh, M. Sako, S. Samuroff, E. Sanchez, C. Sánchez, H. Seo, I. Sevilla-Noarbe, E. Sheldon, R. C. Smith, M. Soares-Santos, F. Sobreira, E. Suchyta, M. E. C. Swanson, G. Tarle, J. Thaler, D. Thomas, M. A. Troxel, V. Vikram, A. R. Walker, R. H. Wechsler, J. Weller, Y. Zhang, and J. Zuntz
Published: 2016
Full Text: View/download PDF

4. Joint Analysis of BICEP2/Keck ArrayandPlanckData

Author: P. A. R. Ade, N. Aghanim, Z. Ahmed, R. W. Aikin, K. D. Alexander, M. Arnaud, J. Aumont, C. Baccigalupi, A. J. Banday, D. Barkats, R. B. Barreiro, J. G. Bartlett, N. Bartolo, E. Battaner, K. Benabed, A. Benoît, A. Benoit-Lévy, S. J. Benton, J.-P. Bernard, M. Bersanelli, P. Bielewicz, C. A. Bischoff, J. J. Bock, A. Bonaldi, L. Bonavera, J. R. Bond, J. Borrill, F. R. Bouchet, F. Boulanger, J. A. Brevik, M. Bucher, I. Buder, E. Bullock, C. Burigana, R. C. Butler, V. Buza, E. Calabrese, J.-F. Cardoso, A. Catalano, A. Challinor, R.-R. Chary, H. C. Chiang, P. R. Christensen, L. P. L. Colombo, C. Combet, J. Connors, F. Couchot, A. Coulais, B. P. Crill, A. Curto, F. Cuttaia, L. Danese, R. D. Davies, R. J. Davis, P. de Bernardis, A. de Rosa, G. de Zotti, J. Delabrouille, J.-M. Delouis, F.-X. Désert, C. Dickinson, J. M. Diego, H. Dole, S. Donzelli, O. Doré, M. Douspis, C. D. Dowell, L. Duband, A. Ducout, J. Dunkley, X. Dupac, C. Dvorkin, G. Efstathiou, F. Elsner, T. A. Enßlin, H. K. Eriksen, E. Falgarone, J. P. Filippini, F. Finelli, S. Fliescher, O. Forni, M. Frailis, A. A. Fraisse, E. Franceschi, A. Frejsel, S. Galeotta, S. Galli, K. Ganga, T. Ghosh, M. Giard, E. Gjerløw, S. R. Golwala, J. González-Nuevo, K. M. Górski, S. Gratton, A. Gregorio, A. Gruppuso, J. E. Gudmundsson, M. Halpern, F. K. Hansen, D. Hanson, D. L. Harrison, M. Hasselfield, G. Helou, S. Henrot-Versillé, D. Herranz, S. R. Hildebrandt, G. C. Hilton, E. Hivon, M. Hobson, W. A. Holmes, W. Hovest, V. V. Hristov, K. M. Huffenberger, H. Hui, G. Hurier, K. D. Irwin, A. H. Jaffe, T. R. Jaffe, J. Jewell, W. C. Jones, M. Juvela, A. Karakci, K. S. Karkare, J. P. Kaufman, B. G. Keating, S. Kefeli, E. Keihänen, S. A. Kernasovskiy, R. Keskitalo, T. S. Kisner, R. Kneissl, J. Knoche, L. Knox, J. M. Kovac, N. Krachmalnicoff, M. Kunz, C. L. Kuo, H. Kurki-Suonio, G. Lagache, A. Lähteenmäki, J.-M. Lamarre, A. Lasenby, M. Lattanzi, C. R. Lawrence, E. M. Leitch, R. Leonardi, F. Levrier, A. Lewis, M. Liguori, P. B. Lilje, M. Linden-Vørnle, M. López-Caniego, P. M. Lubin, M. Lueker, J. F. Macías-Pérez, B. Maffei, D. Maino, N. Mandolesi, A. Mangilli, M. Maris, P. G. Martin, E. Martínez-González, S. Masi, P. Mason, S. Matarrese, K. G. Megerian, P. R. Meinhold, A. Melchiorri, L. Mendes, A. Mennella, M. Migliaccio, S. Mitra, M.-A. Miville-Deschênes, A. Moneti, L. Montier, G. Morgante, D. Mortlock, A. Moss, D. Munshi, J. A. Murphy, P. Naselsky, F. Nati, P. Natoli, C. B. Netterfield, H. T. Nguyen, H. U. Nørgaard-Nielsen, F. Noviello, D. Novikov, I. Novikov, R. O’Brient, R. W. Ogburn, A. Orlando, L. Pagano, F. Pajot, R. Paladini, D. Paoletti, B. Partridge, F. Pasian, G. Patanchon, T. J. Pearson, O. Perdereau, L. Perotto, V. Pettorino, F. Piacentini, M. Piat, D. Pietrobon, S. Plaszczynski, E. Pointecouteau, G. Polenta, N. Ponthieu, G. W. Pratt, S. Prunet, C. Pryke, J.-L. Puget, J. P. Rachen, W. T. Reach, R. Rebolo, M. Reinecke, M. Remazeilles, C. Renault, A. Renzi, S. Richter, I. Ristorcelli, G. Rocha, M. Rossetti, G. Roudier, M. Rowan-Robinson, J. A. Rubiño-Martín, B. Rusholme, M. Sandri, D. Santos, M. Savelainen, G. Savini, R. Schwarz, D. Scott, M. D. Seiffert, C. D. Sheehy, L. D. Spencer, Z. K. Staniszewski, V. Stolyarov, R. Sudiwala, R. Sunyaev, D. Sutton, A.-S. Suur-Uski, J.-F. Sygnet, J. A. Tauber, G. P. Teply, L. Terenzi, K. L. Thompson, L. Toffolatti, J. E. Tolan, M. Tomasi, M. Tristram, M. Tucci, A. D. Turner, L. Valenziano, J. Valiviita, B. Van Tent, L. Vibert, P. Vielva, A. G. Vieregg, F. Villa, L. A. Wade, B. D. Wandelt, R. Watson, A. C. Weber, I. K. Wehus, M. White, S. D. M. White, J. Willmert, C. L. Wong, K. W. Yoon, D. Yvon, A. Zacchei, and A. Zonca
Published: 2015
Full Text: View/download PDF

5. Effects of destriping errors on cosmic microwave background polarization power spectra and pixel noise covariances

Author: G. Efstathiou
Subjects: Physics, Pixel, Infrasound, Detector, Cosmic microwave background, Spectral density, Astronomy and Astrophysics, Astrophysics, Polarization (waves), Residual, Computational physics, symbols.namesake, Space and Planetary Science, symbols, Planck
Abstract: Low frequency detector noise in CMB experiments must be corrected to produce faithful maps of the temperature and polarization anisotropies. For a Planck-type experiment the low frequency noise corrections lead to residual stripes in the maps. Here I show that for a ring torus and idealised detector geometry it is possible to calculate analytically the effects of destriping errors on the temperature and polarization power spectra. It is also possible to compute the pixel-pixel noise covariances for maps of arbitrary resolution. The analytic model is compared to numerical simulations using a realistic detector and scanning geometries. We show that Planck polarization maps at 143 GHz should be signal dominated on large scales. Destriping errors are the dominant source of noise for the temperature and polarization power spectra at multipoles ell < 10. A fast Monte-Carlo method for characterising noise, including destriping errors, is described that can be applied to Planck. This Monte-Carlo method can be used to quantify pixel-pixel noise covariances and to remove noise biases in power spectrum estimates.
Published: 2007
Full Text: View/download PDF

6. Coping with acne: beliefs and perceptions in a sample of secondary school Greek pupils

Author: G Efstathiou, Andreas Katsambas, A Ifandi, Dimitris Rigopoulos, Stamatis Gregoriou, J Chalkias, and S. Georgala
Subjects: Male, Health Knowledge, Attitudes, Practice, Coping (psychology), Pediatrics, medicine.medical_specialty, Adolescent, media_common.quotation_subject, Dermatology, Interpersonal relationship, visual_art.visual_artist, Sunbathing, Surveys and Questionnaires, Perception, Acne Vulgaris, Adaptation, Psychological, medicine, Humans, Acne, media_common, Greece, Social perception, business.industry, medicine.disease, Logistic Models, Infectious Diseases, Social Perception, visual_art, Family medicine, Quality of Life, Female, business, Developed country, Medical literature
Abstract: Background Information on the understanding of acne in adolescents has only occasionally been reported in the medical literature. Objective To evaluate the perceptions of Greek high school students regarding acne causation, exacerbating factors, sources of information, and effect on their daily life and school performance. Patients and methods Three-hundred and forty-seven students (aged 13–18) of four Athenian high schools completed a self-reported questionnaire. Results Self-reported acne was present in 59.2% (187/316). Popular sources of information were parents (31.6%), dermatologists (26.7%), magazines and television (17.5%), pharmacists (16.2%), friends (5.3%), beauticians (1.6%) and other doctors (1.1%). Fifty-two per cent considered the information received as inadequate. Reported causal or exacerbating acne factors included: diet (62.3%), hormones (55.1%), poor hygiene (42.4%), stress (31.9%), infection (14.9%) and genetics (5.7%). Reported ameliorating factors included frequent washing (80.7%), sunbathing (38.6%) and adequate hours of sleep (32%). These notions did not differ among pupils with and without acne or among pupils receiving information from different sources (P
Published: 2007
Full Text: View/download PDF

7. Planckintermediate results(Corrigendum)

Author: P. A. R. Ade, N. Aghanim, M. Arnaud, M. Ashdown, F. Atrio Barandela, J. Aumont, C. Baccigalupi, A. Balbi, A. J. Banday, R. B. Barreiro, J. G. Bartlett, E. Battaner, K. Benabed, A. Benoît, J. P. Bernard, M. Bersanelli, R. Bhatia, I. Bikmaev, J. Bobin, H. Böhringer, A. Bonaldi, J. R. Bond, J. Borrill, F. R. Bouchet, H. Bourdin, M. L. Brown, R. Burenin, C. Burigana, P. Cabella, J. F. Cardoso, P. Carvalho, G. Castex, A. Catalano, L. Cayón, A. Chamballu, L. Y. Chiang, G. Chon, P. R. Christensen, E. Churazov, D. L. Clements, S. Colafrancesco, S. Colombi, L. P. L. Colombo, B. Comis, A. Coulais, B. P. Crill, F. Cuttaia, A. Da Silva, H. Dahle, L. Danese, R. J. Davis, P. de Bernardis, G. de Gasperis, G. de Zotti, J. Delabrouille, J. Démoclès, F. X. Désert, J. M. Diego, K. Dolag, H. Dole, S. Donzelli, O. Doré, U. Dörl, M. Douspis, X. Dupac, G. Efstathiou, T. A. Enßlin, H. K. Eriksen, F. Finelli, I. Flores Cacho, O. Forni, P. Fosalba, M. Frailis, E. Franceschi, M. Frommert, S. Galeotta, K. Ganga, R. T. Génova Santos, M. Giard, Y. Giraud Héraud, J. González Nuevo, K. M. Górski, GREGORIO, ANNA, A. Gruppuso, F. K. Hansen, D. Harrison, A. Hempel, S. Henrot Versillé, C. Hernández Monteagudo, D. Herranz, S. R. Hildebrandt, E. Hivon, M. Hobson, W. A. Holmes, G. Hurier, T. R. Jaffe, A. H. Jaffe, T. Jagemann, W. C. Jones, M. Juvela, E. Keihänen, I. Khamitov, T. S. Kisner, R. Kneissl, J. Knoche, L. Knox, M. Kunz, H. Kurki Suonio, G. Lagache, A. Lähteenmäki, J. M. Lamarre, A. Lasenby, C. R. Lawrence, M. Le Jeune, R. Leonardi, A. Liddle, P. B. Lilje, M. López Caniego, G. Luzzi, J. F. Macías Pérez, D. Maino, N. Mandolesi, M. Maris, F. Marleau, D. J. Marshall, E. Martínez González, S. Masi, M. Massardi, S. Matarrese, P. Mazzotta, S. Mei, A. Melchiorri, J. B. Melin, L. Mendes, A. Mennella, S. Mitra, M. A. Miville Deschênes, A. Moneti, L. Montier, G. Morgante, D. Mortlock, D. Munshi, J. A. Murphy, P. Naselsky, F. Nati, P. Natoli, H. U. Nørgaard Nielsen, F. Noviello, D. Novikov, I. Novikov, S. Osborne, F. Pajot, D. Paoletti, F. Pasian, G. Patanchon, O. Perdereau, L. Perotto, F. Perrotta, F. Piacentini, M. Piat, E. Pierpaoli, R. Piffaretti, S. Plaszczynski, E. Pointecouteau, G. Polenta, N. Ponthieu, L. Popa, T. Poutanen, G. W. Pratt, S. Prunet, J. L. Puget, J. P. Rachen, W. T. Reach, R. Rebolo, M. Reinecke, M. Remazeilles, C. Renault, S. Ricciardi, T. Riller, I. Ristorcelli, G. Rocha, M. Roman, C. Rosset, M. Rossetti, J. A. Rubiño Martín, B. Rusholme, M. Sandri, G. Savini, D. Scott, G. F. Smoot, J. L. Starck, R. Sudiwala, R. Sunyaev, D. Sutton, A. S. Suur Uski, J. F. Sygnet, J. A. Tauber, L. Terenzi, L. Toffolatti, M. Tomasi, M. Tristram, J. Tuovinen, L. Valenziano, B. Van Tent, J. Varis, P. Vielva, F. Villa, N. Vittorio, L. A. Wade, B. D. Wandelt, N. Welikala, S. D. M. White, M. White, D. Yvon, A. Zacchei, A. Zonca, BORGANI, STEFANO, P. A. R., Ade, N., Aghanim, M., Arnaud, M., Ashdown, F., Atrio Barandela, J., Aumont, C., Baccigalupi, A., Balbi, A. J., Banday, R. B., Barreiro, J. G., Bartlett, E., Battaner, K., Benabed, A., Benoît, J. P., Bernard, M., Bersanelli, R., Bhatia, I., Bikmaev, J., Bobin, H., Böhringer, A., Bonaldi, J. R., Bond, Borgani, Stefano, J., Borrill, F. R., Bouchet, H., Bourdin, M. L., Brown, R., Burenin, C., Burigana, P., Cabella, J. F., Cardoso, P., Carvalho, G., Castex, A., Catalano, L., Cayón, A., Chamballu, L. Y., Chiang, G., Chon, P. R., Christensen, E., Churazov, D. L., Clement, S., Colafrancesco, S., Colombi, L. P. L., Colombo, B., Comi, A., Coulai, B. P., Crill, F., Cuttaia, A., Da Silva, H., Dahle, L., Danese, R. J., Davi, P., de Bernardi, G., de Gasperi, G., de Zotti, J., Delabrouille, J., Démoclè, F. X., Désert, J. M., Diego, K., Dolag, H., Dole, S., Donzelli, O., Doré, U., Dörl, M., Douspi, X., Dupac, G., Efstathiou, T. A., Enßlin, H. K., Eriksen, F., Finelli, I., Flores Cacho, O., Forni, P., Fosalba, M., Fraili, E., Franceschi, M., Frommert, S., Galeotta, K., Ganga, R. T., Génova Santo, M., Giard, Y., Giraud Héraud, J., González Nuevo, K. M., Górski, Gregorio, Anna, A., Gruppuso, F. K., Hansen, D., Harrison, A., Hempel, S., Henrot Versillé, C., Hernández Monteagudo, D., Herranz, S. R., Hildebrandt, E., Hivon, M., Hobson, W. A., Holme, G., Hurier, T. R., Jaffe, A. H., Jaffe, T., Jagemann, W. C., Jone, M., Juvela, E., Keihänen, I., Khamitov, T. S., Kisner, R., Kneissl, J., Knoche, L., Knox, M., Kunz, H., Kurki Suonio, G., Lagache, A., Lähteenmäki, J. M., Lamarre, A., Lasenby, C. R., Lawrence, M., Le Jeune, R., Leonardi, A., Liddle, P. B., Lilje, M., López Caniego, G., Luzzi, J. F., Macías Pérez, D., Maino, N., Mandolesi, M., Mari, F., Marleau, D. J., Marshall, E., Martínez González, S., Masi, M., Massardi, S., Matarrese, P., Mazzotta, S., Mei, A., Melchiorri, J. B., Melin, L., Mende, A., Mennella, S., Mitra, M. A., Miville Deschêne, A., Moneti, L., Montier, G., Morgante, D., Mortlock, D., Munshi, J. A., Murphy, P., Naselsky, F., Nati, P., Natoli, H. U., Nørgaard Nielsen, F., Noviello, D., Novikov, I., Novikov, S., Osborne, F., Pajot, D., Paoletti, F., Pasian, G., Patanchon, O., Perdereau, L., Perotto, F., Perrotta, F., Piacentini, M., Piat, E., Pierpaoli, R., Piffaretti, S., Plaszczynski, E., Pointecouteau, G., Polenta, N., Ponthieu, L., Popa, T., Poutanen, G. W., Pratt, S., Prunet, J. L., Puget, J. P., Rachen, W. T., Reach, R., Rebolo, M., Reinecke, M., Remazeille, C., Renault, S., Ricciardi, T., Riller, I., Ristorcelli, G., Rocha, M., Roman, C., Rosset, M., Rossetti, J. A., Rubiño Martín, B., Rusholme, M., Sandri, G., Savini, D., Scott, G. F., Smoot, J. L., Starck, R., Sudiwala, R., Sunyaev, D., Sutton, A. S., Suur Uski, J. F., Sygnet, J. A., Tauber, L., Terenzi, L., Toffolatti, M., Tomasi, M., Tristram, J., Tuovinen, L., Valenziano, B., Van Tent, J., Vari, P., Vielva, F., Villa, N., Vittorio, L. A., Wade, B. D., Wandelt, N., Welikala, S. D. M., White, M., White, D., Yvon, A., Zacchei, and A., Zonca
Subjects: galaxies: clusters: intracluster medium, clusters: intracluster medium [galaxies], galaxies: clusters: general, general [X-rays], cosmology: observations, clusters: general [galaxies], submillimeter: general, general [submillimeter], X-rays: general, errata, addenda, observation [cosmology]
Published: 2013

8. Myths and truths concerning estimation of power spectra: the case for a hybrid estimator

Author: G. Efstathiou
Subjects: Physics, Noise, Space and Planetary Science, Covariance matrix, Cosmic microwave background, Range (statistics), Applied mathematics, Estimator, Spectral density, Astronomy and Astrophysics, Astrophysics, Cluster analysis, Weak gravitational lensing
Abstract: It is widely believed that maximum likelihood estimators must be used to provide optimal estimates of power spectra. Since such estimators require require of order N_d^3 operations they are computationally prohibitive for N_d greater than a few tens of thousands. Because of this, a large and inhomogeneous literature exists on approximate methods of power spectrum estimation. These range from manifestly sub-optimal, but computationally fast methods, to near optimal but computationally expensive methods. Furthermore, much of this literature concentrates on the power spectrum estimates rather than the equally important problem of deriving an accurate covariance matrix. In this paper, I consider the problem of estimating the power spectrum of cosmic microwave background (CMB) anisotropies from large data sets. Various analytic results on power spectrum estimators are derived, or collated from the literature, and tested against numerical simulations. An unbiased hybrid estimator is proposed that combines a maximum likelihood estimator at low multipoles and pseudo-C_\ell estimates at high multipoles. The hybrid estimator is computationally fast, nearly optimal over the full range of multipoles, and returns an accurate and nearly diagonal covariance matrix for realistic experimental configurations (provided certain conditions on the noise properties of the experiment are satisfied). It is argued that, in practice, computationally expensive methods that approximate the N_d^3 maximum likelihood solution are unlikely to improve on the hybrid estimator, and may actually perform worse. The results presented here can be generalised to CMB polarization and to power spectrum estimation using other types of data, such as galaxy clustering and weak gravitational lensing.
Published: 2004
Full Text: View/download PDF

9. A maximum likelihood analysis of the low cosmic microwave background multipoles from theWilkinson Microwave Anisotropy Probe

Author: G. Efstathiou
Subjects: Physics, Amplitude, Space and Planetary Science, Cosmic microwave background, Estimator, Spectral density, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Lambda, CMB cold spot, Cosmology, Galaxy
Abstract: The amplitudes of the quadrupole and octopole measured from the Wilkinson Microwave Anisotropy Probe (WMAP) appear to be lower than expected according to the concordance Lambda CDM cosmology. However, the pseudo-Cl estimator used by the WMAP team is non-optimal. In this paper, we discuss the effects of Galactic cuts on pseudo-Cl and quadratic maximum likelihood estimators. An application of a quadratic maximum likelihood estimator to Galaxy subtracted maps produced by the WMAP team and Tegmark, de Oliveira-Costa and Hamilton (2003) shows that the amplitudes of the low multipoles are stable to different Galactic cuts. In particular, the quadrupole and octopole amplitudes are found to lie in the ranges 176 - 250 (micro K)**2 794 - 1183 (micro K)**2 (and more likely to be at the upper ends of these ranges) rather than the values of 123 (micro K)**2 and 611 (micro K)**2 found by the WMAP team. These results indicate that the discrepancy with the concordance Lambda CDM model at low multipoles is not particularly significant and is in the region of a few percent. This conclusion is consistent with an analysis of the low amplitude of the angular correlation function computed from quadratic maximum likelihood power spectrum estimates.
Published: 2004
Full Text: View/download PDF

10. The topology of the 2-degree field galaxy redshift survey

Author: A. Canavezes and G. Efstathiou
Subjects: Space and Planetary Science, Astronomy and Astrophysics
Published: 2004
Full Text: View/download PDF

11. Clustering of galaxy clusters in cold dark matter universes

Author: J. M. Colberg, S. D. M. White, N. Yoshida, T. J. MacFarland, A. Jenkins, C. S. Frenk, F. R. Pearce, A. E. Evrard, H. M. P. Couchman, G. Efstathiou, J. A. Peacock, P. A. Thomas, and null the Virgo Consortium
Subjects: Physics, Cold dark matter, Mass distribution, Space and Planetary Science, Cluster (physics), Spectral density, Astronomy and Astrophysics, Scale (descriptive set theory), Astrophysics::Cosmology and Extragalactic Astrophysics, Cosmological constant, Astrophysics, Galaxy cluster, Spectral line
Abstract: We use very large cosmological N--body simulations to obtain accurate predictions for the two-point correlations and power spectra of mass-limited samples of galaxy clusters. We consider two currently popular cold dark matter (CDM) cosmogonies, a critical density model ($\tau$CDM) and a flat low density model with a cosmological constant ($\Lambda$CDM). Our simulations each use $10^9$ particles to follow the mass distribution within cubes of side $2h^{-1}$Gpc ($\tau$CDM) and $3h^{-1}$Gpc ($\Lambda$CDM) with a force resolution better than $10^{-4}$ of the cube side. We investigate how the predicted cluster correlations increase for samples of increasing mass and decreasing abundance. Very similar behaviour is found in the two cases. The correlation length increases from $r_0=12$ -- 13$h^{-1}$Mpc for samples with mean separation $d_{\rm c}=30h^{-1}$Mpc to $r_0=22$-- 27$h^{-1}$Mpc for samples with $d_{\rm c}=100h^{-1}$Mpc. The lower value here corresponds to $\tau$CDM and the upper to $\Lambda$CDM. The power spectra of these cluster samples are accurately parallel to those of the mass over more than a decade in scale. Both correlation lengths and power spectrum biases can be predicted to better than 10% using the simple model of Sheth, Mo & Tormen (2000). This prediction requires only the linear mass power spectrum and has no adjustable parameters. We compare our predictions with published results for the APM cluster sample. The observed variation of correlation length with richness agrees well with the models, particularly for $\Lambda$CDM. The observed power spectrum (for a cluster sample of mean separation $d_{\rm c}=31h^{-1}$Mpc) lies significantly above the predictions of both models.
Published: 2002
Full Text: View/download PDF

12. Constraints on and m from distant Type Ia supernovae and cosmic microwave background anisotropies

Author: G. Efstathiou, S. L. Bridle, A. N. Lasenby, M. P. Hobson, and R. S. Ellis
Subjects: Physics, COSMIC cancer database, Cosmic microwave background, Shape of the universe, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Cosmological constant, Astrophysics, Lambda, Omega, Supernova, Space and Planetary Science, High Energy Physics::Experiment, Anisotropy
Abstract: We perform a combined likelihood analysis of the latest cosmic microwave background anisotropy data and distant Type 1a Supernova data of Perlmutter etal (1998a). Our analysis is restricted to cosmological models where structure forms from adiabatic initial fluctuations characterised by a power-law spectrum with negligible tensor component. Marginalizing over other parameters, our best fit solution gives Omega_m = 0.25 (+0.18, -0.12) and Omega_Lambda = 0.63 (+0.17, -0.23) (95 % confidence errors) for the cosmic densities contributed by matter and a cosmological constant respectively. The results therefore strongly favour a nearly spatially flat Universe with a non-zero cosmological constant.
Published: 1999
Full Text: View/download PDF

13. Cypriot and Greek nurses' perceptions of the professional practice environment

Author: E, Papastavrou, G, Efstathiou, C, Lemonidou, M, Kalafati, J, Katajisto, and R, Suhonen
Subjects: Adult, Male, Practice Patterns, Nurses', Greece, Attitude of Health Personnel, Middle Aged, Nursing Staff, Hospital, Nurse's Role, Organizational Culture, Job Satisfaction, Patient-Centered Care, Cyprus, Humans, Female, Nurse-Patient Relations
Abstract: Research evidence supports that the role of the professional practice environment is crucial for the delivery of quality care as it is significantly correlated with patient and nurse outcomes. However, in countries sharing similar cultural and ethnic backgrounds, like Cyprus and Greece, as well as the increased mobility of patients and healthcare workers, there is a lack of information regarding this issue. The aim of this study is to explore and compare Cypriot and Greek nurses' perceptions of their professional practice environment.A descriptive comparative survey was employed using a sample of nurses in Cyprus (N = 150) and Greece (N = 147). Information was collected with the Revised Professional Practice Environment Scale (RPPE).The results revealed significant differences between the two countries in three out of eight factors of the RPPE, with Greece's mean value being higher than Cyprus's: Handling Disagreements and Conflicts, Leadership and Autonomy in Clinical Practice, and Teamwork.The findings generate additional knowledge about the organizational context of care delivery that might help nursing leaders to understand how nurses perceive their work environment and how this influences their work, and consequently the care provided. The results can be utilized by nurse ward managers to improve the quality of nursing care provided. Further research is needed using different approaches to explore nurses' experience in more depth.Measuring nurses' perceptions of their professional practice environment may assist managers and policymakers in introducing interventions that contribute to a better practice environment and consequently to improved nursing, as well as patient, outcomes.
Published: 2014

14. Temperature Fluctuations of the Microwave Background in Primeval Isocurvature Baryon Models

Author: S. N. Dutta and G. Efstathiou
Subjects: Astrophysics::Cosmology and Extragalactic Astrophysics
Abstract: We calculate the temperature fluctuations in the microwave background in open primeval isocurvature baryon models (Peebles, 1987) with cosmological densities in the range 0.05 ≤ ω ≤ 0.2 We assume that the power spectrum of fluctuations is a power law with the index varying between – 1 ≤n≤ 0, as indicated by observations of large scale structure in the Universe. The Universe is assumed to be always fully ionized. The South Pole 13 field point experiment (Schusteret al., 1993) is compared to our theoretical predictions, and we find that the models predict larger temperature fluctuations than are observed. The observed temperature fluctuations on intermediate scales of ≲ 1°thus seem difficult to reconcile with the isocurvature baryon model.
Published: 1996
Full Text: View/download PDF

15. Planck Intermediate Results II: Comparison of Sunyaev-Zeldovich measurements from Planck and from the Arcminute Microkelvin Imager for 11 galaxy clusters

Author: P. A. R. Ade (82), N. Aghanim (56), M. Arnaud (72), M. Ashdown (69), 6, J. Aumont (56), C. Baccigalupi (81), A. Balbi (35), A. J. Banday (90, R. B. Barreiro (65), E. Battaner (92), R. Battye (68), K. Benabed (57, 89), A. Benoît (54), J.-P. Bernard (9), M. Bersanelli (32, 48), R. Bhatia (7), I. Bikmaev (20, H. Böhringer (77), A. Bonaldi (68), J. R. Bond (8), J. Borrill (14, 85), F. R. Bouchet (57, H. Bourdin (35), M. L. Brown (68), M. Bucher (1), R. Burenin (83), C. Burigana (47, 34), R. C. Butler (47), P. Cabella (36), P. Carvalho (6), A. Catalano (73, 71), L. Cayón (29), A. Chamballu (52), R.-R. Chary (53), L.-Y. Chiang (61), G. Chon (77), D. L. Clements (52), S. Colafrancesco (44), S. Colombi (57, A. Coulais (71), B. P. Crill (67, 79), F. Cuttaia (47), A. Da Silva (12), H. Dahle (63), R. D. Davies (68), R. J. Davis (68), P. de Bernardis (31), G. de Gasperis (35), A. de Rosa (47), G. de Zotti (43, 81), J. Delabrouille (1), J. Démoclès (72), C. Dickinson (68), J. M. Diego (65), K. Dolag (91, 76), H. Dole (56, 55), S. Donzelli (48), O. Doré (67, 10), M. Douspis (56), X. Dupac (40), G. Efstathiou (62), T. A. Enßlin (76), H. K. Eriksen (63), F. Feroz (6), F. Finelli (47), I. Flores-Cacho (9, 90), O. Forni (90, P. Fosalba (58), M. Frailis (45), E. Franceschi (47), S. Fromenteau (1, 56), S. Galeotta (45), K. Ganga (1), R. T. Génova-Santos (64), M. Giard (90, Y. Giraud-Héraud (1), J. González-Nuevo (65, K. M. Górski (67, 94), K. J. B. Grainge (6, 69), A. Gregorio (33, 45), A. Gruppuso (47), F. K. Hansen (63), D. Harrison (62, S. Henrot-Versillé (70), C. Hernández-Monteagudo (13, D. Herranz (65), S. R. Hildebrandt (10), E. Hivon (57, M. Hobson (6), W. A. Holmes (67), K. M. Huffenberger (93), G. Hurier (73), N. Hurley-Walker (6), T. Jagemann (40), M. Juvela (25), E. Keihänen (25), I. Khamitov (88), R. Kneissl (39, J. Knoche (76), M. Kunz (18, H. Kurki-Suonio (25, 42), G. Lagache (56), J.-M. Lamarre (71), A. Lasenby (6, C. R. Lawrence (67), M. Le Jeune (1), S. Leach (81), R. Leonardi (40), A. Liddle (24), P. B. Lilje (63, 11), M. Linden-Vørnle (17), M. López-Caniego (65), G. Luzzi (70), J. F. Macías-Pérez (73), C. J. MacTavish (69), D. Maino (32, N. Mandolesi (47, M. Maris (45), F. Marleau (60), D. J. Marshall (72), E. Martínez-González (65), S. Masi (31), M. Massardi (46), S. Matarrese (30), F. Matthai (76), P. Mazzotta (35), P. R. Meinhold (27), A. Melchiorri (31, 49), J.-B. Melin (16), L. Mendes (40), A. Mennella (32, S. Mitra (51, 67), M.-A. Miville-Deschênes (56, L. Montier (90, G. Morgante (47), D. Munshi (82), P. Naselsky (78, 37), P. Natoli (34, 4, 47), H. U. Nørgaard-Nielsen (17), F. Noviello (68), D. Novikov (52), I. Novikov (78), M. Olamaie (6), S. Osborne (87), F. Pajot (56), D. Paoletti (47), F. Pasian (45), G. Patanchon (1), T. J. Pearson (10, 53), O. Perdereau (70), Y. C. Perrott (6), F. Perrotta (81), F. Piacentini (31), E. Pierpaoli (23), P. Platania (66), E. Pointecouteau (90, G. Polenta (4, 44), L. Popa (59), T. Poutanen (42, G. W. Pratt (72), J.-L. Puget (56), J. P. Rachen (21, R. Rebolo (64, 38), M. Reinecke (76), M. Remazeilles (56, C. Renault (73), S. Ricciardi (47), I. Ristorcelli (90, G. Rocha (67, C. Rodríguez-Gonzálvez (6), C. Rosset (1), M. Rossetti (32, J. A. Rubiño-Martín (64, C. Rumsey (6), B. Rusholme (53), M. Sandri (47), R. D. E. Saunders (6, G. Savini (80), M. P. Schammel (6), D. Scott (22), T. W. Shimwell (6), G. F. Smoot (26, J.-L. Starck (72), F. Stivoli (50), V. Stolyarov (6, 86), R. Sudiwala (82), R. Sunyaev (76, 84), D. Sutton (62, A.-S. Suur-Uski (25, J.-F. Sygnet (57), J. A. Tauber (41), L. Terenzi (47), L. Toffolatti (19, 65), M. Tomasi (48), M. Tristram (70), L. Valenziano (47), B. Van Tent (74), P. Vielva (65), F. Villa (47), N. Vittorio (35), L. A. Wade (67), B. D. Wandelt (57, 28), D. Yvon (16), A. Zacchei (45), A. Zonca (27), European Space Agency, Centre National D'Etudes Spatiales (France), Centre National de la Recherche Scientifique (France), Agenzia Spaziale Italiana, Consiglio Nazionale delle Ricerche, Istituto Nazionale di Fisica Nucleare, National Aeronautics and Space Administration (US), Department of Energy (US), Science and Technology Facilities Council (UK), UK Space Agency, Consejo Superior de Investigaciones Científicas (España), Ministerio de Ciencia e Innovación (España), Junta de Andalucía, Academy of Finland, Ministry of Education and Culture (Finland), German Centre for Air and Space Travel, Max Planck Society, National Space Institute (Denmark), Research Council of Norway, Science Foundation Ireland, Fundação para a Ciência e a Tecnologia (Portugal), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Hélium : du fondamental aux applications (HELFA), Institut Néel (NEEL), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), APC - Cosmologie, AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), APC - Gravitation (APC-Gravitation), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Max-Planck-Institut für Gravitationsphysik ( Albert-Einstein-Institut ) (AEI), Max-Planck-Gesellschaft-Max-Planck-Gesellschaft, Laboratoire de l'Accélérateur Linéaire (LAL), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Laboratoire de Physique Théorique d'Orsay [Orsay] (LPT), Centre National de la Recherche Scientifique (CNRS)-Université Paris-Sud - Paris 11 (UP11), PLANCK, Planck, AMI Collaborations: N., Aghanim55, M., Arnaud70, M., Ashdown67, J., Aumont55, C., Baccigalupi79, A., Balbi35, A. J., Banday88, R. B., Barreiro63, E., Battaner90, R., Battye66, K., Benabed56, A., Benoˆıt54, J. P., Bernard8, M., Bersanelli32, R., Bhatia6, I., Bikmaev20, H., Bo ̈hringer75, A., Bonaldi66, J. R., Bond7, J., Borrill13, F. R., Bouchet56, H., Bourdin35, M. L., Brown66⋆, M., Bucher1, R., Burenin81, C., Burigana47, R. C., Butler47, P., Cabella36, P., Carvalho5, A., Catalano71, L., Cayo ́n26, A., Chamballu52, R. R., Chary53, L. Y., Chiang59, G., Chon75, D. L., Clements52, S., Colafrancesco44, S., Colombi56, B. P., Crill65, F., Cuttaia47, A., Da Silva11, H., Dahle61, R. D., Davies66, R. J., Davis66, P., de Bernardis31, G., de Gasperis35, A., de Rosa47, G., de Zotti43, J., Delabrouille1, J., De ́mocle`s70, C., Dickinson66, J. M., Diego63, K., Dolag89, H., Dole55, S., Donzelli48, O., Dore ́65, M., Douspis55, X., Dupac40, T. A., Enßlin74, H. K., Eriksen61, F., Feroz5, F., Finelli47, I., Flores Cacho8, O., Forni88, P., Fosalba57, M., Frailis45, E., Franceschi47, S., Fromenteau1, S., Galeotta45, K., Ganga1, R. T., Ge ́nova Santos62, M., Giard88, Y., Giraud He ́raud1, J., Gonza ́lez Nuevo63, K. M., Go ́rski65, K. J. B., Grainge5, Gregorio, Anna, A., Gruppuso47, F. K., Hansen61, D., Harrison60, S., Henrot Versille ́68, C., Herna ́ndez Monteagudo12, D., Herranz63, S. R., Hildebrandt9, E., Hivon56, M., Hobson5, W. A., Holmes65, K. M., Huffenberger91, G., Hurier71, N., Hurley Walker5, T., Jagemann40, M., Juvela25, E., Keiha ̈nen25, I., Khamitov86, R., Kneissl39, J., Knoche74, M., Kunz17, H., Kurki Suonio25, G., Lagache55, J. M., Lamarre69, A., Lasenby5, C. R., Lawrence65, M., Le Jeune1, S., Leach79, R., Leonardi40, A., Liddle24, P. B., Lilje61, M., Linden Vørnle16, M., Lo ́pez Caniego63, G., Luzzi68, J. F., Mac ́ıas Pe ́rez71, C. J., Mactavish67, D., Maino32, N., Mandolesi47, M., Maris45, F., Marleau19, D. J., Marshall88, E., Mart ́ınez Gonza ́lez63, S., Masi31, M., Massardi46, S., Matarrese30, F., Matthai74, P., Mazzotta35, A., Melchiorri31, J. B., Melin15, L., Mendes40, A., Mennella32, S., Mitra51, M. A., Miville Descheˆnes55, L., Montier88, G., Morgante47, D., Munshi80, P., Naselsky76, P., Natoli34, 4, 47, F., Noviello66, M., Olamaie5, S., Osborne85, F., Pajot55, D., Paoletti47, F., Pasian45, G., Patanchon1, T. J., Pearson9, O., Perdereau68, Y. C., Perrott5, F., Perrotta79, F., Piacentini31, E., Pierpaoli23, P., Platania64, E., Pointecouteau88, G., Polenta4, L., Popa58, T., Poutanen42, 25, 2, G. W., Pratt70, J. L., Puget55, J. P., Rachen21, R., Rebolo62, 14, 38, M., Reinecke74, M., Remazeilles55, C., Renault71, S., Ricciardi47, I., Ristorcelli88, G., Rocha65, C., Rodr ́ıguez Gonza ́lvez5, C., Rosset1, M., Rossetti32, J. A., Rubin ̃o Mart ́ın62, B., Rusholme53, R. D. E., Saunders5, G., Savini78, M. P., Schammel5, D., Scott22, T. W., Shimwell5, G. F., Smoot27, 73, 1, J. L., Starck70, F., Stivoli50, V., Stolyarov5, 67, 84, R., Sunyaev74, D., Sutton60, A. S., Suur Uski25, J. F., Sygnet56, J. A., Tauber41, L., Terenzi47, L., Toffolatti18, M., Tomasi48, M., Tristram68, L., Valenziano47, B., Van Tent72, P., Vielva63, F., Villa47, N., Vittorio35, L. A., Wade65, B. D., Wandelt56, 87, 29, D., Yvon15, A., Zacchei45, A., Zonca28, Universidad de Cantabria, Department of Physics, Helsinki Institute of Physics, HELFA - Hélium : du fondamental aux applications, Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Max-Planck-Institut für Gravitationsphysik ( Albert-Einstein-Institut ) (AEI), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Hélium : du fondamental aux applications (NEEL - HELFA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Max-Planck-Institut für Gravitationsphysik ( Albert-Einstein-Institut ) (AEI)
Subjects: galaxies: clusters: intracluster medium, galaxies: clusters: general, cosmology: observations, cosmic background radiation, x-rays: galaxies: clusters, [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Astronomy, Arcminute Microkelvin Imager, Astrophysics, clusters: general [Galaxies], Parameter space, Cosmic background radiation, 01 natural sciences, 7. Clean energy, Angular diameter, galaxies, observations − Galaxies: cluster: general − Galaxies: clusters: intracluster medium − Cosmic background radiation [Cosmology], observations [Cosmology], 010303 astronomy & astrophysics, Physics, Cosmology: observations, Radius, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING, symbols, Cluster sampling, Galaxies: clusters: intracluster medium, Astrophysics - Cosmology and Nongalactic Astrophysics, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Astrophysics::High Energy Astrophysical Phenomena, education, Cosmology: observations − Galaxies: cluster: general − Galaxies: clusters: intracluster medium − Cosmic background radiation, FOS: Physical sciences, clusters: intracluster medium [Galaxies], Astrophysics::Cosmology and Extragalactic Astrophysics, cosmology observations galaxies, [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], symbols.namesake, Settore FIS/05 - Astronomia e Astrofisica, 0103 physical sciences, Cluster (physics), Galaxies: clusters: general, X-rays: galaxies: clusters, Planck, Galaxy cluster, Astrophysics::Galaxy Astrophysics, X rays, 010308 nuclear & particles physics, Astronomy and Astrophysics, Cosmology and Extragalactic Astrophysics, 115 Astronomy, Space science, Galaxies, Space and Planetary Science, astrophysics: cosmology and extragalactic astrophysics, galaxies: clusters [X-rays]
Abstract: A comparison is presented of Sunyaev-Zeldovich measurements for 11 galaxy clusters as obtained by Planck and by the ground-based interferometer, the Arcminute Microkelvin Imager. Assuming a universal spherically-symmetric Generalised Navarro, Frenk and White (GNFW) model for the cluster gas pressure profile, we jointly constrain the integrated Compton-Y parameter (Y 500) and the scale radius (θ500) of each cluster. Our resulting constraints in the Y500-θ500 2D parameter space derived from the two instruments overlap significantly for eight of the clusters, although, overall, there is a tendency for AMI to find the Sunyaev-Zeldovich signal to be smaller in angular size and fainter than Planck. Significant discrepancies exist for the three remaining clusters in the sample, namely A1413, A1914, and the newly-discovered Planck cluster PLCKESZ G139.59+24.18. The robustness of the analysis of both the Planck and AMI data is demonstrated through the use of detailed simulations, which also discount confusion from residual point (radio) sources and from diffuse astrophysical foregrounds as possible explanations for the discrepancies found. For a subset of our cluster sample, we have investigated the dependence of our results on the assumed pressure profile by repeating the analysis adopting the best-fitting GNFW profile shape which best matches X-ray observations. Adopting the best-fitting profile shape from the X-ray data does not, in general, resolve the discrepancies found in this subset of five clusters. Though based on a small sample, our results suggest that the adopted GNFW model may not be sufficiently flexible to describe clusters universally. © ESO, 2013., The Planck Collaboration acknowledges the support of: ESA; CNES and CNRS/INSU-IN2P3-INP (France); ASI, CNR, and INAF (Italy); NASA and DoE (USA); STFC and UKSA (UK); CSIC, MICINN and JA (Spain); Tekes, AoF and CSC (Finland); DLR and MPG (Germany); CSA (Canada); DTU Space (Denmark); SER/SSO (Switzerland); RCN (Norway); SFI (Ireland); FCT/MCTES (Portugal); and DEISA (EU).
Published: 2012
Full Text: View/download PDF

16. [The responsibility schema in obsessive compulsive checking and washing]

Author: B, Palermou, G, Efstathiou, and A, Kalantzi-Azizi
Abstract: According to the theory of cognitive therapy, mental disorders are related to specific dysfunctional schemata, assumptions and automatic thoughts. Various pathogenic schemata have been identified in the context of the cognitive explanation of obsessive compulsive disorder, among which is the responsibily schema, proposed by Salkovskis in 1985. The responsibility schema has been defined as the belief that one possesses pivotal power to provoke or prevent subjective crucial negative outcomes. In order to investigate the relationship between the major obsessive compulsive themes and the cognitive schema of responsibility, the Maudsley Obsessive-Compulsive Inventory and the Responsibility Questionnaire were administered to a non-clinical sample of 366 college students. Two groups, consisting of 15 participants each, were identified having obsessive compulsive manifestations (complaints). The first group manifested obsessive compulsive checking and the second group manifested obsessive compulsive washing. No significant sex differences were found between the groups (x²=0.186, df=1, p0.005), but significant age differences were observed (t=-2.41, df=19.68, p0.05). In view of this finding, data were subjected to Analysis of Covariance. The age of the participants was treated as a covariate and the main effects of the obsessive compulsive checking and washing on responsibility were analyzed. The findings seem to verify this relationship for obsessive compulsive checking (F=5.63, df=1.307, p0.05). The subjects who manifested obsessive-compulsive checking reported an increased sense of responsibility as compared to those who experienced obsessive-compulsive washing or were free of obsessive-compulsive manifestations. The available questionnaires did not allow the investigation of the relationship between other types of obsessive compulsive manifestations and responsibility. The use of a non-clinical sample should also be noted.
Published: 2012

17. The three-dimensional power spectrum measured from the APM Galaxy Survey - II. Use of the two-dimensional power spectrum

Author: G. Efstathiou and C. M. Baugh
Subjects: Physics, Spectral flux, Spectral density, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Power law, Galaxy, symbols.namesake, Apparent magnitude, Fourier transform, Galaxy groups and clusters, Space and Planetary Science, symbols, Wavenumber, Astrophysics::Galaxy Astrophysics
Abstract: We present the results of a Fourier transform analysis of galaxies from the APM Survey in the magnitude range 17≤b J ≤20. The two-dimensional power spectrum of galaxy clustering is found to obey a power law with K −1.33 , displaying a break at K∼30, where K is the physical wavenumber on the plane of the sky and has units of inverse radians. We compare this with the power spectrum of the Lick Survey using a scaling relationship. We then recover the three-dimensional power spectrum from the two-dimensional power spectrum and reproduce results that we have previously obtained using the angular correlation function. The APM power spectrum in three dimensions is a power law, P(k)∞k −1.25 , for wavenumbers k≥0.2 h Mpc −1
Published: 1994
Full Text: View/download PDF

18. Planck intermediate results. XXVI. Optical identification and redshifts of Planck clusters with the RTT150 telescope

Author: Ade, P, Aghanim, N, Arnaud, M, Ashdown, M, Aumont, J, Baccigalupi, C, Banday, A, Barreiro, R, Barrena, R, Bartolo, N, Battaner, E, Benabed, K, Benoit-Lévy, A, Bernard, J, Bersanelli, M, Bielewicz, P, Bikmaev, I, Böhringer, H, Bonaldi, A, Bonavera, L, Bond, J, Borrill, J, Bouchet, F, Burenin, R, Burigana, C, Butler, R, Calabrese, E, Carvalho, P, Catalano, A, Chamballu, A, Chiang, H, Chon, G, Christensen, P, Churazov, E, Clements, D, Colombo, L, Comis, B, Couchot, F, Curto, A, Cuttaia, F, Dahle, H, Danese, L, Davies, R, Davis, R, de Bernardis, P, de Rosa, A, de Zotti, G, Delabrouille, J, Diego, J, Dole, H, Doré, O, Douspis, M, Ducout, A, Dupac, X, Efstathiou, G, Elsner, F, Enßlin, T, Eriksen, H, Finelli, F, Flores-Cacho, I, Forni, O, Frailis, M, Fraisse, A, Franceschi, E, Frejsel, A, Fromenteau, S, Galeotta, S, Ganga, K, Génova-Santos, R, Giard, M, Gilfanov, M, Giraud-Héraud, Y, Gjerløw, E, González-Nuevo, J, Górski, K, Gruppuso, A, Hansen, F, Hanson, D, Harrison, D, Hempel, A, Henrot-Versillé, S, Hernández-Monteagudo, C, Herranz, D, Hildebrandt, S, Hivon, E, Hobson, M, Holmes, W, Hornstrup, A, Hovest, W, Huffenberger, K, Hurier, G, Jaffe, T, Jones, W, Juvela, M, Keihänen, E, Keskitalo, R, Khamitov, I, Kisner, T, Kneissl, R, Knoche, J, Kunz, M, Kurki-Suonio, H, Lagache, G, Lamarre, J, Lasenby, A, Lattanzi, M, Lawrence, C, Leonardi, R, Levrier, F, Liguori, M, Lilje, P, Linden-Vørnle, M, López-Caniego, M, Lubin, P, Macías-Pérez, J, Maino, D, Mandolesi, N, Maris, M, Martin, P, Martínez-González, E, Masi, S, Matarrese, S, Mazzotta, P, Melin, J, Mendes, L, Mennella, A, Migliaccio, M, Miville-Deschênes, M, Moneti, A, Montier, L, Morgante, G, Mortlock, D, Munshi, D, Murphy, J, Naselsky, P, Nati, F, Natoli, P, Nørgaard-Nielsen, H, Novikov, D, Novikov, I, Oxborrow, C, Pagano, L, Pajot, F, Paoletti, D, Pasian, F, Perdereau, O, Perotto, L, Perrotta, F, Pettorino, V, Piacentini, F, Piat, M, Pietrobon, D, Plaszczynski, S, Pointecouteau, E, Polenta, G, Popa, L, Pratt, G, Prunet, S, Puget, J, Rachen, J, Reinecke, M, Remazeilles, M, Renault, C, Ricciardi, S, Ristorcelli, I, Rocha, G, Roman, M, Rosset, C, Rossetti, M, Roudier, G, Rubiño-Martín, J, Rusholme, B, Sandri, M, Scott, D, Spencer, L, Stolyarov, V, Sudiwala, R, Sunyaev, R, Sutton, D, Suur-Uski, A, Sygnet, J, Tauber, J, Terenzi, L, Toffolatti, L, Tomasi, M, Tristram, M, Tucci, M, Valenziano, L, Valiviita, J, Van Tent, B, Vibert, L, Vielva, P, Villa, F, Wade, L, Wandelt, B, Wehus, I, Yvon, D, Zacchei, A, Zonca, A, P. A. R. Ade, N. Aghanim, M. Arnaud, M. Ashdown, J. Aumont, C. Baccigalupi, A. J. Banday, R. B. Barreiro, R. Barrena, N. Bartolo, E. Battaner, K. Benabed, A. Benoit-Lévy, J. -P. Bernard, M. Bersanelli, P. Bielewicz, I. Bikmaev, H. Böhringer, A. Bonaldi, L. Bonavera, J. R. Bond, J. Borrill, F. R. Bouchet, R. Burenin, C. Burigana, R. C. Butler, E. Calabrese, P. Carvalho, A. Catalano, A. Chamballu, H. C. Chiang, G. Chon, P. R. Christensen, E. Churazov, D. L. Clements, L. P. L. Colombo, B. Comis, F. Couchot, A. Curto, F. Cuttaia, H. Dahle, L. Danese, R. D. Davies, R. J. Davis, P. de Bernardis, A. de Rosa, G. de Zotti, J. Delabrouille, J. M. Diego, H. Dole, O. Doré, M. Douspis, A. Ducout, X. Dupac, G. Efstathiou, F. Elsner, T. A. Enßlin, H. K. Eriksen, F. Finelli, I. Flores-Cacho, O. Forni, M. Frailis, A. A. Fraisse, E. Franceschi, A. Frejsel, S. Fromenteau, S. Galeotta, K. Ganga, R. T. Génova-Santos, M. Giard, M. Gilfanov, Y. Giraud-Héraud, E. Gjerløw, J. González-Nuevo, K. M. Górski, A. Gruppuso, F. K. Hansen, D. Hanson, D. L. Harrison, A. Hempel, S. Henrot-Versillé, C. Hernández-Monteagudo, D. Herranz, S. R. Hildebrandt, E. Hivon, M. Hobson, W. A. Holmes, A. Hornstrup, W. Hovest, K. M. Huffenberger, G. Hurier, T. R. Jaffe, W. C. Jones, M. Juvela, E. Keihänen, R. Keskitalo, I. Khamitov, T. S. Kisner, R. Kneissl, J. Knoche, M. Kunz, H. Kurki-Suonio, G. Lagache, J. -M. Lamarre, A. Lasenby, M. Lattanzi, C. R. Lawrence, R. Leonardi, F. Levrier, M. Liguori, P. B. Lilje, M. Linden-Vørnle, M. López-Caniego, P. M. Lubin, J. F. Macías-Pérez, D. Maino, N. Mandolesi, M. Maris, P. G. Martin, E. Martínez-González, S. Masi, S. Matarrese, P. Mazzotta, J. -B. Melin, L. Mendes, A. Mennella, M. Migliaccio, M. -A. Miville-Deschênes, A. Moneti, L. Montier, G. Morgante, D. Mortlock, D. Munshi, J. A. Murphy, P. Naselsky, F. Nati, P. Natoli, H. U. Nørgaard-Nielsen, D. Novikov, I. Novikov, C. A. Oxborrow, L. Pagano, F. Pajot, D. Paoletti, F. Pasian, O. Perdereau, L. Perotto, F. Perrotta, V. Pettorino, F. Piacentini, M. Piat, D. Pietrobon, S. Plaszczynski, E. Pointecouteau, G. Polenta, L. Popa, G. W. Pratt, S. Prunet, J. -L. Puget, J. P. Rachen, M. Reinecke, M. Remazeilles, C. Renault, S. Ricciardi, I. Ristorcelli, G. Rocha, M. Roman, C. Rosset, M. Rossetti, G. Roudier, J. A. Rubiño-Martín, B. Rusholme, M. Sandri, D. Scott, L. D. Spencer, V. Stolyarov, R. Sudiwala, R. Sunyaev, D. Sutton, A. -S. Suur-Uski, J. -F. Sygnet, J. A. Tauber, L. Terenzi, L. Toffolatti, M. Tomasi, M. Tristram, M. Tucci, L. Valenziano, J. Valiviita, B. Van Tent, L. Vibert, P. Vielva, F. Villa, L. A. Wade, B. D. Wandelt, I. K. Wehus, D. Yvon, A. Zacchei, A. Zonca, Ade, P, Aghanim, N, Arnaud, M, Ashdown, M, Aumont, J, Baccigalupi, C, Banday, A, Barreiro, R, Barrena, R, Bartolo, N, Battaner, E, Benabed, K, Benoit-Lévy, A, Bernard, J, Bersanelli, M, Bielewicz, P, Bikmaev, I, Böhringer, H, Bonaldi, A, Bonavera, L, Bond, J, Borrill, J, Bouchet, F, Burenin, R, Burigana, C, Butler, R, Calabrese, E, Carvalho, P, Catalano, A, Chamballu, A, Chiang, H, Chon, G, Christensen, P, Churazov, E, Clements, D, Colombo, L, Comis, B, Couchot, F, Curto, A, Cuttaia, F, Dahle, H, Danese, L, Davies, R, Davis, R, de Bernardis, P, de Rosa, A, de Zotti, G, Delabrouille, J, Diego, J, Dole, H, Doré, O, Douspis, M, Ducout, A, Dupac, X, Efstathiou, G, Elsner, F, Enßlin, T, Eriksen, H, Finelli, F, Flores-Cacho, I, Forni, O, Frailis, M, Fraisse, A, Franceschi, E, Frejsel, A, Fromenteau, S, Galeotta, S, Ganga, K, Génova-Santos, R, Giard, M, Gilfanov, M, Giraud-Héraud, Y, Gjerløw, E, González-Nuevo, J, Górski, K, Gruppuso, A, Hansen, F, Hanson, D, Harrison, D, Hempel, A, Henrot-Versillé, S, Hernández-Monteagudo, C, Herranz, D, Hildebrandt, S, Hivon, E, Hobson, M, Holmes, W, Hornstrup, A, Hovest, W, Huffenberger, K, Hurier, G, Jaffe, T, Jones, W, Juvela, M, Keihänen, E, Keskitalo, R, Khamitov, I, Kisner, T, Kneissl, R, Knoche, J, Kunz, M, Kurki-Suonio, H, Lagache, G, Lamarre, J, Lasenby, A, Lattanzi, M, Lawrence, C, Leonardi, R, Levrier, F, Liguori, M, Lilje, P, Linden-Vørnle, M, López-Caniego, M, Lubin, P, Macías-Pérez, J, Maino, D, Mandolesi, N, Maris, M, Martin, P, Martínez-González, E, Masi, S, Matarrese, S, Mazzotta, P, Melin, J, Mendes, L, Mennella, A, Migliaccio, M, Miville-Deschênes, M, Moneti, A, Montier, L, Morgante, G, Mortlock, D, Munshi, D, Murphy, J, Naselsky, P, Nati, F, Natoli, P, Nørgaard-Nielsen, H, Novikov, D, Novikov, I, Oxborrow, C, Pagano, L, Pajot, F, Paoletti, D, Pasian, F, Perdereau, O, Perotto, L, Perrotta, F, Pettorino, V, Piacentini, F, Piat, M, Pietrobon, D, Plaszczynski, S, Pointecouteau, E, Polenta, G, Popa, L, Pratt, G, Prunet, S, Puget, J, Rachen, J, Reinecke, M, Remazeilles, M, Renault, C, Ricciardi, S, Ristorcelli, I, Rocha, G, Roman, M, Rosset, C, Rossetti, M, Roudier, G, Rubiño-Martín, J, Rusholme, B, Sandri, M, Scott, D, Spencer, L, Stolyarov, V, Sudiwala, R, Sunyaev, R, Sutton, D, Suur-Uski, A, Sygnet, J, Tauber, J, Terenzi, L, Toffolatti, L, Tomasi, M, Tristram, M, Tucci, M, Valenziano, L, Valiviita, J, Van Tent, B, Vibert, L, Vielva, P, Villa, F, Wade, L, Wandelt, B, Wehus, I, Yvon, D, Zacchei, A, Zonca, A, P. A. R. Ade, N. Aghanim, M. Arnaud, M. Ashdown, J. Aumont, C. Baccigalupi, A. J. Banday, R. B. Barreiro, R. Barrena, N. Bartolo, E. Battaner, K. Benabed, A. Benoit-Lévy, J. -P. Bernard, M. Bersanelli, P. Bielewicz, I. Bikmaev, H. Böhringer, A. Bonaldi, L. Bonavera, J. R. Bond, J. Borrill, F. R. Bouchet, R. Burenin, C. Burigana, R. C. Butler, E. Calabrese, P. Carvalho, A. Catalano, A. Chamballu, H. C. Chiang, G. Chon, P. R. Christensen, E. Churazov, D. L. Clements, L. P. L. Colombo, B. Comis, F. Couchot, A. Curto, F. Cuttaia, H. Dahle, L. Danese, R. D. Davies, R. J. Davis, P. de Bernardis, A. de Rosa, G. de Zotti, J. Delabrouille, J. M. Diego, H. Dole, O. Doré, M. Douspis, A. Ducout, X. Dupac, G. Efstathiou, F. Elsner, T. A. Enßlin, H. K. Eriksen, F. Finelli, I. Flores-Cacho, O. Forni, M. Frailis, A. A. Fraisse, E. Franceschi, A. Frejsel, S. Fromenteau, S. Galeotta, K. Ganga, R. T. Génova-Santos, M. Giard, M. Gilfanov, Y. Giraud-Héraud, E. Gjerløw, J. González-Nuevo, K. M. Górski, A. Gruppuso, F. K. Hansen, D. Hanson, D. L. Harrison, A. Hempel, S. Henrot-Versillé, C. Hernández-Monteagudo, D. Herranz, S. R. Hildebrandt, E. Hivon, M. Hobson, W. A. Holmes, A. Hornstrup, W. Hovest, K. M. Huffenberger, G. Hurier, T. R. Jaffe, W. C. Jones, M. Juvela, E. Keihänen, R. Keskitalo, I. Khamitov, T. S. Kisner, R. Kneissl, J. Knoche, M. Kunz, H. Kurki-Suonio, G. Lagache, J. -M. Lamarre, A. Lasenby, M. Lattanzi, C. R. Lawrence, R. Leonardi, F. Levrier, M. Liguori, P. B. Lilje, M. Linden-Vørnle, M. López-Caniego, P. M. Lubin, J. F. Macías-Pérez, D. Maino, N. Mandolesi, M. Maris, P. G. Martin, E. Martínez-González, S. Masi, S. Matarrese, P. Mazzotta, J. -B. Melin, L. Mendes, A. Mennella, M. Migliaccio, M. -A. Miville-Deschênes, A. Moneti, L. Montier, G. Morgante, D. Mortlock, D. Munshi, J. A. Murphy, P. Naselsky, F. Nati, P. Natoli, H. U. Nørgaard-Nielsen, D. Novikov, I. Novikov, C. A. Oxborrow, L. Pagano, F. Pajot, D. Paoletti, F. Pasian, O. Perdereau, L. Perotto, F. Perrotta, V. Pettorino, F. Piacentini, M. Piat, D. Pietrobon, S. Plaszczynski, E. Pointecouteau, G. Polenta, L. Popa, G. W. Pratt, S. Prunet, J. -L. Puget, J. P. Rachen, M. Reinecke, M. Remazeilles, C. Renault, S. Ricciardi, I. Ristorcelli, G. Rocha, M. Roman, C. Rosset, M. Rossetti, G. Roudier, J. A. Rubiño-Martín, B. Rusholme, M. Sandri, D. Scott, L. D. Spencer, V. Stolyarov, R. Sudiwala, R. Sunyaev, D. Sutton, A. -S. Suur-Uski, J. -F. Sygnet, J. A. Tauber, L. Terenzi, L. Toffolatti, M. Tomasi, M. Tristram, M. Tucci, L. Valenziano, J. Valiviita, B. Van Tent, L. Vibert, P. Vielva, F. Villa, L. A. Wade, B. D. Wandelt, I. K. Wehus, D. Yvon, A. Zacchei, and A. Zonca
Abstract: We present the results of approximately three years of observations of Planck Sunyaev-Zeldovich (SZ) sources with the Russian-Turkish 1.5 m telescope (RTT150), as a part of the optical follow-up programme undertaken by the Planck collaboration. During this time period approximately 20% of all dark and grey clear time available at the telescope was devoted to observations of Planck objects. Some observations of distant clusters were also done at the 6 m Bolshoi Telescope Alt-azimutalnyi (BTA) of the Special Astrophysical Observatory of the Russian Academy of Sciences. In total, deep, direct images of more than one hundred fields were obtained in multiple filters. We identified 47 previously unknown galaxy clusters, 41 of which are included in the Planck catalogue of SZ sources. The redshifts of 65 Planck clusters were measured spectroscopically and 14 more were measured photometrically. We discuss the details of cluster optical identifications and redshift measurements. We also present new spectroscopic redshifts for 39 Planck clusters that were not included in the Planck SZ source catalogue and are published here for the first time.
Published: 2015

19. Angiomyofibroblastoma of the spermatic cord: A case report

Author: Tzanakis, N. Giannopoulos, G. Efstathiou, S. Rallis, G. Nikiteas, N.
Abstract: Introduction. Angiomyofibroblastoma is a benign soft tissue tumor with tendency to arise in the vulva. Case presentation. We report a 36-year-old Greek Caucasian man presenting with a left inguinal painless mass. This is the second case of angiomyofibroblastoma of the spermatic cord. At operation, a 4.5 cm well-circumscribed solid tumor was found adherent to the spermatic cord. The tumor consisted of spindle-shaped cells proliferating in short fascicles between numerous medium-sized blood vessels with thin and hyalinized walls. Neoplastic cells had eosinophilic cytoplasm with neither mitotic figures nor nuclear atypia. The stroma included abundant mast cells and few mature lypocytes. Immunostaining showed positivity for vimentin, CD34, desmin and smooth muscle actin. Our patient was treated by simple excision and was followed up for five years with clinical examination and ultrasonography, revealing no evidence of local recurrence or metastasis. Conclusion. This unusual neoplasm should be distinguished from aggressive angiomyxoma and other myxoid malignant tumors with widespread metastatic potential. © 2010 Tzanakis et al; licensee BioMed Central Ltd.
Published: 2010

20. Close adherence to a Mediterranean diet improves endothelial function in subjects with abdominal obesity

Author: Rallidis, L.S. Lekakis, J. Kolomvotsou, A. Zampelas, A. Vamvakou, G. Efstathiou, S. Dimitriadis, G. Raptis, S.A. Kremastinos, D.T.
Abstract: Background: Abdominal obesity (AO) is associated with increased risk of cardiovascular disease and type 2 diabetes, whereas the Mediterranean diet exerts a cardioprotective effect. Objective: We examined whether a close adherence to a Mediterranean-style diet improves endothelial function in individuals with AO. Design: We recruited 90 subjects with AO without cardiovascular disease or type 2 diabetes. Participants were randomly assigned to the intervention or control group. Both groups were instructed to follow a Mediterranean-style diet for 2 mo. Subjects in the intervention group additionally had to follow a specific relevant daily and weekly food plan with close supervision by a dietitian and provision of basic foods. Flow-mediated dilatation (FMD), lipids, C-reactive protein (CRP), and insulin resistance with the homeostasis model assessment (HOMA-IR) were measured. Results: After 2 mo, subjects in the intervention group increased their intake of total fat due to higher consumption of monounsaturated fatty acids as well as intakes of dietary fiber, vitamin C, and alcohol compared with the control group (all P < 0.05). The intervention group also increased FMD (2.05%; 95% CI: 0.97, 3.13%), whereas no effect was found in the control group (-0.32%; 95% CI: -1.31, 0.67%). Changes in lipids and CRP concentrations did not differ between the 2 groups, whereas diastolic blood pressure decreased in the intervention group (-6.44 mm Hg; 95% CI: -8.57, -4.31 mm Hg) compared with the control group (-0.76 mm Hg; 95% CI: -2.83, 1.31 mm Hg). Finally, there was a trend for a reduction in HOMA-IR in the intervention group compared with the control group (P = 0.072). Conclusion: Close adherence to a Mediterranean-style diet achieved by close dietetic supervision improves endothelial function in subjects with AO. © 2009 American Society for Nutrition.
Published: 2009

21. The formation of cosmic structure with a 17 keV neutrino

Author: G. Efstathiou and J.R. Bond
Subjects: Physics, Inflation (cosmology), Nuclear and High Energy Physics, Cold dark matter, Dark matter, Cosmic microwave background, Elementary particle, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Neutrino, Galaxy, Standard Model
Abstract: Adding a 17 keV neutrino with a lifetime of ∼ 1 yr can explain the puzzling large-scale structure observed in the galaxy distribution which is difficult to understand in the “standard” cold dark matter model with the adiabatic scale invariant density fluctuations predicted by inflation. Decay times ≳ 10 yr are incompatible with microwave background anisotropy limits and galaxy clustering observations.
Published: 1991
Full Text: View/download PDF

22. Pseudohyperkalemia in serum: the phenomenon and its clinical magnitude

Author: Sevastos, N Theodossiades, G Efstathiou, S Papatheodoridis, GV Manesis, E Archimandritis, AJ
Abstract: We investigated in detail the difference between serum and plasma potassium levels in patients with several conditions associated with pseudohyperkalemia. In total, 435 patients with either thrombocytoses, erythrocytoses, leucocytoses, or a mixed-type disorder and 30 healthy controls were included. In each case, the index Dk (serum potassium minus plasma potassium) and the index Dk100 (Dk x 100,000/platelets), which indicates the Dk value that corresponds to platelets of 100,000/mm(3) were estimated. Median Dk was significantly higher in the groups with platelet, erythrocyte, or mixed-type disorders than in the controls (P = 0.001). Among these groups, Dk values were significantly higher in patients with thrombocytosis or mixed-type disorders compared with those with erythrocytosis (P < 0.001, for both). Furthermore, no significant difference was observed in Dk values between controls and patients with white blood cell disorders (P = 0.74). Dk values did not exceed 2.61 mmol/L, whereas Dk100 values were inversely related to platelet counts (r = - 0.351, P < 0.01). In conclusion, pseudohyperkalemia is mainly present in patients with thrombocytosis or mixed-type disorders, probably as a result of the degranulation of platelets, which offers a potassium load to the surrounding plasma at the time of clot formation in vitro. However, the degree of pseudohyperkalemia does not increase proportionally with the increase of platelet counts, which may be associated with transfer of part of potassium load from the plasma back into red and white blood cells.
Published: 2006

23. Outcome of patients with advanced non-transitional urothelial carcinomas following platinum-based chemotherapy

Author: Kastritis, E Bozas, G Efstathiou, E Koutsoukou, V Gika, D Deliveliotis, C Antoniou, N Dimopoulos, MA Bamias, A
Subjects: Health Sciences, Επιστήμες Υγείας
Published: 2005

24. Phase II study of Hellenic Co-operative Oncology Group. Gemcitabine and carboplatin combination as first-line treatment in elderly patients and those unfit for cisplatin-based chemotherapy with advanced bladder carcinoma: phase II study of the Hellenic Co-operative Oncology Group

Author: Linardou, H Aravantinos, G Efstathiou, E Kalofonos, C Anagnostopoulos, A Deliveliotis, C Bafaloukos, D Athanasios Dimopoulos, M Bamias, A
Subjects: Health Sciences, Επιστήμες Υγείας
Published: 2004

25. Gemcitabine and carboplatin combination as first-line treatment in elderly patients and those unfit for cisplatin-based chemotherapy with advanced bladder carcinoma: Phase II study of the Hellenic Co-Operative Oncology Group

Author: Linardou, H Aravantinos, G Efstathiou, E Kalofonos, C and Anagnostopoulos, A Deliveliotis, C Bafaloukos, D Dimopoulos, MA Bamias, A
Abstract: Objectives. To evaluate, in a multicenter Phase II study, the safety and efficacy of the combination of gemcitabine and carboplatin, as first-line treatment in elderly and unfit patients with advanced bladder carcinoma. The toxicity of platinum-based chemotherapy combinations represents a common problem for elderly or unfit patients with advanced bladder carcinoma. Methods. Patients with previously untreated inoperable or metastatic bladder carcinoma and an Eastern Cooperative Oncology Group performance status greater than 2, age older than 75 years, or creatinine clearance of less than 50 mL/min were treated with carboplatin area under the curve 4 on day I and gemcitabine 1000 mg/m(2) on days 1 and 8, every 21 days for a total of six cycles. Results. A total of 56 patients (48 men and 8 women, median age 75 years) were enrolled. Of these patients, 46% had a performance status of 2 to 3, 68% had a creatinine clearance of less than 50 mL/min, and 59% had distant metastases. The overall response rate was 36% (95% confidence interval 23.4% to 49.6%), and an additional 14 patients had disease stabilization (25%, 95% confidence interval 14.4% to 38.4%). The median time to progression was 4.8 months, the median overall survival was 7.2 months, and the 1-year survival rate was 26%. Grade 3 or 4 toxicity included anemia (18%); thrombocytopenia (16%); neutropenia (27%), with two episodes of febrile neutropenia requiring hospitalization; diarrhea (2%); and fatigue (5.5%). Two toxic deaths occurred during the study. Conclusions. The combination of gemcitabine and carboplatin has some activity as first-line treatment of advanced bladder carcinoma in the elderly and those unfit for cisplatin-based chemotherapy, with manageable toxicity, and represents a reasonable choice for the treatment of such patients.
Published: 2004

26. Treatment of ovarian germ cell tumors with a 3-day bleomycin, etoposide, and cisplatin regimen: a prospective multicenter study

Author: Dimopoulos, MA Papadimitriou, C Hamilos, G Efstathiou, E and Vlahos, G Rodolakis, A Aravantinos, G Kalofonos, H and Kouroussis, C Gika, D Skarlos, D Bamias, A
Abstract: Background. Ovarian germ cell tumors (OGCT) are highly curable when treated with cytoreductive surgery and platinum-based chemotherapy. We evaluated the safety and activity of a 3-day modified bleomycin, etoposide, and cisplatinum (mBEP) regimen in patients with OGCT. Patients and methods. Patients with FIGO stages I-IV OGCT were treated with three (stages I-III complete resection) or four cycles (incomplete resection or stage IV) of bleomycin 15 mg iv, etoposide 120 mg/m(2) iv, and cisplatin 40 mg/m(2) iv for 3 days every 3 weeks. Results. Forty-eight patients (14 with dysgerminoma and 34 with non-clysgerminomatous tumors) were included in our study. Most patients had stage I disease (65%) and complete resection of their tumor (67%). Twenty percent of patients developed grade 3 or 4 neutropenia with 4 episodes of neutropenic fever. During follow-up (median: 5 years), two patients developed progressive disease including one patient who died. All patients with stage I or II disease and all patients with dysgerminoma remain free of disease. However, 20% of patients with non-dysgerminomatous tumors stage III or IV experienced progressive disease. Conclusion. The modified 3-day BEP regimen was safe and effective in patients with OGCT. Further improvements are needed for patients with advanced, suboptimally debulked non-dysgerminomatous tumors. (C) 2004 Elsevier Inc. All rights reserved.
Published: 2004

27. Planck 2013 results. XXII. Constraints on inflation

Author: Tauber, J, Ade, P, Aghanim, N, Armitage-Caplan, C, Arnaud, M, Ashdown, M, Atrio-Barandela, F, Aumont, J, Baccigalupi, C, Banday, A, Barreiro, R, Bartlett, J, Bartolo, N, Battaner, E, Benabed, K, Benoît, A, Benoit-Lévy, A, Bernard, J, Bersanelli, M, Bielewicz, P, Bobin, J, Bock, J, Bonaldi, A, Bond, J, Borrill, J, Bouchet, F, Bridges, M, Bucher, M, Burigana, C, Butler, R, Calabrese, E, Cardoso, J, Catalano, A, Challinor, A, Chamballu, A, Chiang, H, Chiang, L, Christensen, P, Church, S, Clements, D, Colombi, S, Colombo, L, Couchot, F, Coulais, A, Crill, B, Curto, A, Cuttaia, F, Danese, L, Davies, R, Davis, R, De Bernardis, P, Rosa, A, Zotti, G, Delabrouille, J, Delouis, J, Désert, F, Dickinson, C, Diego, J, Dole, H, Donzelli, S, Doré, O, Douspis, M, Dunkley, J, Dupac, X, Efstathiou, G, Enßlin, T, Eriksen, H, Finelli, F, Forni, O, Frailis, M, Franceschi, E, Galeotta, S, Ganga, K, Gauthier, C, Giard, M, Giardino, G, Giraud-Héraud, Y, González-Nuevo, J, Górski, K, Gratton, S, Gregorio, A, Gruppuso, A, Hamann, J, Hansen, F, Hanson, D, Harrison, D, Henrot-Versillé, S, Hernández-Monteagudo, C, Herranz, D, Hildebrandt, S, Hivon, E, Hobson, M, Holmes, W, Hornstrup, A, Hovest, W, Huffenberger, K, Jaffe, A, Jaffe, T, Jones, W, Juvela, M, Keihänen, E, Keskitalo, R, Kisner, T, Kneissl, R, Knoche, J, Knox, L, Kunz, M, Kurki-Suonio, H, Lagache, G, Lähteenmäki, A, Lamarre, J, Lasenby, A, Laureijs, R, Lawrence, C, Leach, S, Leahy, J, Leonardi, R, Lesgourgues, J, Lewis, A, Liguori, M, Lilje, P, Linden-Vørnle, M, López-Caniego, M, Lubin, P, Maciás-Pérez, J, Maffei, B, Maino, D, Mandolesi, N, Maris, M, Marshall, D, Martin, P, Martínez-González, E, Masi, S, Massardi, M, Matarrese, S, Matthai, F, Mazzotta, P, Meinhold, P, Melchiorri, A, Mendes, L, Mennella, A, Migliaccio, M, Mitra, S, Miville-Deschênes, M, Moneti, A, Montier, L, Morgante, G, Mortlock, D, Moss, A, Munshi, D, Murphy, J, Naselsky, P, Nati, F, Natoli, P, Netterfield, C, Nørgaard-Nielsen, H, Noviello, F, Novikov, D, Novikov, I, O'Dwyer, I, Osborne, S, Oxborrow, C, Paci, F, Pagano, L, Pajot, F, Paladini, R, Pandolfi, S, Paoletti, D, Partridge, B, Pasian, F, Patanchon, G, Peiris, H, Perdereau, O, Perotto, L, Perrotta, F, Piacentini, F, Piat, M, Pierpaoli, E, Pietrobon, D, Plaszczynski, S, Pointecouteau, E, Polenta, G, Ponthieu, N, Popa, L, Poutanen, T, Pratt, G, Prézeau, G, Prunet, S, Puget, J, Rachen, J, Rebolo, R, Reinecke, M, Remazeilles, M, Renault, C, Ricciardi, S, Riller, T, Ristorcelli, I, Rocha, G, Rosset, C, Roudier, G, Rowan-Robinson, M, Rubinõ-Martín, J, Rusholme, B, Sandri, M, Santos, D, Savelainen, M, Savini, G, Scott, D, Seiffert, M, Shellard, E, Spencer, L, Starck, J, Stolyarov, V, Stompor, R, Sudiwala, R, Sunyaev, R, Sureau, F, Sutton, D, Suur-Uski, A, Sygnet, J, Tavagnacco, D, Terenzi, L, Toffolatti, L, Tomasi, M, Tréguer-Goudineau, J, Tristram, M, Tucci, M, Tuovinen, J, Valenziano, L, Valiviita, J, Tent, B, Varis, J, Vielva, P, Villa, F, Vittorio, N, Wade, L, Wandelt, B, White, M, Wilkinson, A, Yvon, D, Zacchei, A, Zibin, J, Zonca, A, J. Tauber, P. Ade, N. Aghanim, C. Armitage-Caplan, M. Arnaud, M. Ashdown, F. Atrio-Barandela, J. Aumont, C. Baccigalupi, A. Banday, R. Barreiro, J. Bartlett, N. Bartolo, E. Battaner, K. Benabed, A. Benoît, A. Benoit-Lévy, J. Bernard, M. Bersanelli, P. Bielewicz, J. Bobin, J. Bock, A. Bonaldi, J. Bond, J. Borrill, F. Bouchet, M. Bridges, M. Bucher, C. Burigana, R. Butler, E. Calabrese, J. Cardoso, A. Catalano, A. Challinor, A. Chamballu, H. Chiang, L. Chiang, P. Christensen, S. Church, D. Clements, S. Colombi, L. Colombo, F. Couchot, A. Coulais, B. Crill, A. Curto, F. Cuttaia, L. Danese, R. Davies, R. Davis, P. De Bernardis, A. D. Rosa, G. D. Zotti, J. Delabrouille, J. Delouis, F. Désert, C. Dickinson, J. Diego, H. Dole, S. Donzelli, O. Doré, M. Douspis, J. Dunkley, X. Dupac, G. Efstathiou, T. Enßlin, H. Eriksen, F. Finelli, O. Forni, M. Frailis, E. Franceschi, S. Galeotta, K. Ganga, C. Gauthier, M. Giard, G. Giardino, Y. Giraud-Héraud, J. González-Nuevo, K. Górski, S. Gratton, A. Gregorio, A. Gruppuso, J. Hamann, F. Hansen, D. Hanson, D. Harrison, S. Henrot-Versillé, C. Hernández-Monteagudo, D. Herranz, S. Hildebrandt, E. Hivon, M. Hobson, W. Holmes, A. Hornstrup, W. Hovest, K. Huffenberger, A. Jaffe, T. Jaffe, W. Jones, M. Juvela, E. Keihänen, R. Keskitalo, T. Kisner, R. Kneissl, J. Knoche, L. Knox, M. Kunz, H. Kurki-Suonio, G. Lagache, A. Lähteenmäki, J. Lamarre, A. Lasenby, R. Laureijs, C. Lawrence, S. Leach, J. Leahy, R. Leonardi, J. Lesgourgues, A. Lewis, M. Liguori, P. Lilje, M. Linden-Vørnle, M. López-Caniego, P. Lubin, J. Maciás-Pérez, B. Maffei, D. Maino, N. Mandolesi, M. Maris, D. Marshall, P. Martin, E. Martínez-González, S. Masi, M. Massardi, S. Matarrese, F. Matthai, P. Mazzotta, P. Meinhold, A. Melchiorri, L. Mendes, A. Mennella, M. Migliaccio, S. Mitra, M. Miville-Deschênes, A. Moneti, L. Montier, G. Morgante, D. Mortlock, A. Moss, D. Munshi, J. Murphy, P. Naselsky, F. Nati, P. Natoli, C. Netterfield, H. Nørgaard-Nielsen, F. Noviello, D. Novikov, I. Novikov, I. O'dwyer, S. Osborne, C. Oxborrow, F. Paci, L. Pagano, F. Pajot, R. Paladini, S. Pandolfi, D. Paoletti, B. Partridge, F. Pasian, G. Patanchon, H. Peiris, O. Perdereau, L. Perotto, F. Perrotta, F. Piacentini, M. Piat, E. Pierpaoli, D. Pietrobon, S. Plaszczynski, E. Pointecouteau, G. Polenta, N. Ponthieu, L. Popa, T. Poutanen, G. Pratt, G. Prézeau, S. Prunet, J. Puget, J. Rachen, R. Rebolo, M. Reinecke, M. Remazeilles, C. Renault, S. Ricciardi, T. Riller, I. Ristorcelli, G. Rocha, C. Rosset, G. Roudier, M. Rowan-Robinson, J. Rubinõ-Martín, B. Rusholme, M. Sandri, D. Santos, M. Savelainen, G. Savini, D. Scott, M. Seiffert, E. Shellard, L. Spencer, J. Starck, V. Stolyarov, R. Stompor, R. Sudiwala, R. Sunyaev, F. Sureau, D. Sutton, A. Suur-Uski, J. Sygnet, D. Tavagnacco, L. Terenzi, L. Toffolatti, M. Tomasi, J. Tréguer-Goudineau, M. Tristram, M. Tucci, J. Tuovinen, L. Valenziano, J. Valiviita, B. V. Tent, J. Varis, P. Vielva, F. Villa, N. Vittorio, L. Wade, B. Wandelt, M. White, A. Wilkinson, D. Yvon, A. Zacchei, J. Zibin, A. Zonca, Tauber, J, Ade, P, Aghanim, N, Armitage-Caplan, C, Arnaud, M, Ashdown, M, Atrio-Barandela, F, Aumont, J, Baccigalupi, C, Banday, A, Barreiro, R, Bartlett, J, Bartolo, N, Battaner, E, Benabed, K, Benoît, A, Benoit-Lévy, A, Bernard, J, Bersanelli, M, Bielewicz, P, Bobin, J, Bock, J, Bonaldi, A, Bond, J, Borrill, J, Bouchet, F, Bridges, M, Bucher, M, Burigana, C, Butler, R, Calabrese, E, Cardoso, J, Catalano, A, Challinor, A, Chamballu, A, Chiang, H, Chiang, L, Christensen, P, Church, S, Clements, D, Colombi, S, Colombo, L, Couchot, F, Coulais, A, Crill, B, Curto, A, Cuttaia, F, Danese, L, Davies, R, Davis, R, De Bernardis, P, Rosa, A, Zotti, G, Delabrouille, J, Delouis, J, Désert, F, Dickinson, C, Diego, J, Dole, H, Donzelli, S, Doré, O, Douspis, M, Dunkley, J, Dupac, X, Efstathiou, G, Enßlin, T, Eriksen, H, Finelli, F, Forni, O, Frailis, M, Franceschi, E, Galeotta, S, Ganga, K, Gauthier, C, Giard, M, Giardino, G, Giraud-Héraud, Y, González-Nuevo, J, Górski, K, Gratton, S, Gregorio, A, Gruppuso, A, Hamann, J, Hansen, F, Hanson, D, Harrison, D, Henrot-Versillé, S, Hernández-Monteagudo, C, Herranz, D, Hildebrandt, S, Hivon, E, Hobson, M, Holmes, W, Hornstrup, A, Hovest, W, Huffenberger, K, Jaffe, A, Jaffe, T, Jones, W, Juvela, M, Keihänen, E, Keskitalo, R, Kisner, T, Kneissl, R, Knoche, J, Knox, L, Kunz, M, Kurki-Suonio, H, Lagache, G, Lähteenmäki, A, Lamarre, J, Lasenby, A, Laureijs, R, Lawrence, C, Leach, S, Leahy, J, Leonardi, R, Lesgourgues, J, Lewis, A, Liguori, M, Lilje, P, Linden-Vørnle, M, López-Caniego, M, Lubin, P, Maciás-Pérez, J, Maffei, B, Maino, D, Mandolesi, N, Maris, M, Marshall, D, Martin, P, Martínez-González, E, Masi, S, Massardi, M, Matarrese, S, Matthai, F, Mazzotta, P, Meinhold, P, Melchiorri, A, Mendes, L, Mennella, A, Migliaccio, M, Mitra, S, Miville-Deschênes, M, Moneti, A, Montier, L, Morgante, G, Mortlock, D, Moss, A, Munshi, D, Murphy, J, Naselsky, P, Nati, F, Natoli, P, Netterfield, C, Nørgaard-Nielsen, H, Noviello, F, Novikov, D, Novikov, I, O'Dwyer, I, Osborne, S, Oxborrow, C, Paci, F, Pagano, L, Pajot, F, Paladini, R, Pandolfi, S, Paoletti, D, Partridge, B, Pasian, F, Patanchon, G, Peiris, H, Perdereau, O, Perotto, L, Perrotta, F, Piacentini, F, Piat, M, Pierpaoli, E, Pietrobon, D, Plaszczynski, S, Pointecouteau, E, Polenta, G, Ponthieu, N, Popa, L, Poutanen, T, Pratt, G, Prézeau, G, Prunet, S, Puget, J, Rachen, J, Rebolo, R, Reinecke, M, Remazeilles, M, Renault, C, Ricciardi, S, Riller, T, Ristorcelli, I, Rocha, G, Rosset, C, Roudier, G, Rowan-Robinson, M, Rubinõ-Martín, J, Rusholme, B, Sandri, M, Santos, D, Savelainen, M, Savini, G, Scott, D, Seiffert, M, Shellard, E, Spencer, L, Starck, J, Stolyarov, V, Stompor, R, Sudiwala, R, Sunyaev, R, Sureau, F, Sutton, D, Suur-Uski, A, Sygnet, J, Tavagnacco, D, Terenzi, L, Toffolatti, L, Tomasi, M, Tréguer-Goudineau, J, Tristram, M, Tucci, M, Tuovinen, J, Valenziano, L, Valiviita, J, Tent, B, Varis, J, Vielva, P, Villa, F, Vittorio, N, Wade, L, Wandelt, B, White, M, Wilkinson, A, Yvon, D, Zacchei, A, Zibin, J, Zonca, A, J. Tauber, P. Ade, N. Aghanim, C. Armitage-Caplan, M. Arnaud, M. Ashdown, F. Atrio-Barandela, J. Aumont, C. Baccigalupi, A. Banday, R. Barreiro, J. Bartlett, N. Bartolo, E. Battaner, K. Benabed, A. Benoît, A. Benoit-Lévy, J. Bernard, M. Bersanelli, P. Bielewicz, J. Bobin, J. Bock, A. Bonaldi, J. Bond, J. Borrill, F. Bouchet, M. Bridges, M. Bucher, C. Burigana, R. Butler, E. Calabrese, J. Cardoso, A. Catalano, A. Challinor, A. Chamballu, H. Chiang, L. Chiang, P. Christensen, S. Church, D. Clements, S. Colombi, L. Colombo, F. Couchot, A. Coulais, B. Crill, A. Curto, F. Cuttaia, L. Danese, R. Davies, R. Davis, P. De Bernardis, A. D. Rosa, G. D. Zotti, J. Delabrouille, J. Delouis, F. Désert, C. Dickinson, J. Diego, H. Dole, S. Donzelli, O. Doré, M. Douspis, J. Dunkley, X. Dupac, G. Efstathiou, T. Enßlin, H. Eriksen, F. Finelli, O. Forni, M. Frailis, E. Franceschi, S. Galeotta, K. Ganga, C. Gauthier, M. Giard, G. Giardino, Y. Giraud-Héraud, J. González-Nuevo, K. Górski, S. Gratton, A. Gregorio, A. Gruppuso, J. Hamann, F. Hansen, D. Hanson, D. Harrison, S. Henrot-Versillé, C. Hernández-Monteagudo, D. Herranz, S. Hildebrandt, E. Hivon, M. Hobson, W. Holmes, A. Hornstrup, W. Hovest, K. Huffenberger, A. Jaffe, T. Jaffe, W. Jones, M. Juvela, E. Keihänen, R. Keskitalo, T. Kisner, R. Kneissl, J. Knoche, L. Knox, M. Kunz, H. Kurki-Suonio, G. Lagache, A. Lähteenmäki, J. Lamarre, A. Lasenby, R. Laureijs, C. Lawrence, S. Leach, J. Leahy, R. Leonardi, J. Lesgourgues, A. Lewis, M. Liguori, P. Lilje, M. Linden-Vørnle, M. López-Caniego, P. Lubin, J. Maciás-Pérez, B. Maffei, D. Maino, N. Mandolesi, M. Maris, D. Marshall, P. Martin, E. Martínez-González, S. Masi, M. Massardi, S. Matarrese, F. Matthai, P. Mazzotta, P. Meinhold, A. Melchiorri, L. Mendes, A. Mennella, M. Migliaccio, S. Mitra, M. Miville-Deschênes, A. Moneti, L. Montier, G. Morgante, D. Mortlock, A. Moss, D. Munshi, J. Murphy, P. Naselsky, F. Nati, P. Natoli, C. Netterfield, H. Nørgaard-Nielsen, F. Noviello, D. Novikov, I. Novikov, I. O'dwyer, S. Osborne, C. Oxborrow, F. Paci, L. Pagano, F. Pajot, R. Paladini, S. Pandolfi, D. Paoletti, B. Partridge, F. Pasian, G. Patanchon, H. Peiris, O. Perdereau, L. Perotto, F. Perrotta, F. Piacentini, M. Piat, E. Pierpaoli, D. Pietrobon, S. Plaszczynski, E. Pointecouteau, G. Polenta, N. Ponthieu, L. Popa, T. Poutanen, G. Pratt, G. Prézeau, S. Prunet, J. Puget, J. Rachen, R. Rebolo, M. Reinecke, M. Remazeilles, C. Renault, S. Ricciardi, T. Riller, I. Ristorcelli, G. Rocha, C. Rosset, G. Roudier, M. Rowan-Robinson, J. Rubinõ-Martín, B. Rusholme, M. Sandri, D. Santos, M. Savelainen, G. Savini, D. Scott, M. Seiffert, E. Shellard, L. Spencer, J. Starck, V. Stolyarov, R. Stompor, R. Sudiwala, R. Sunyaev, F. Sureau, D. Sutton, A. Suur-Uski, J. Sygnet, D. Tavagnacco, L. Terenzi, L. Toffolatti, M. Tomasi, J. Tréguer-Goudineau, M. Tristram, M. Tucci, J. Tuovinen, L. Valenziano, J. Valiviita, B. V. Tent, J. Varis, P. Vielva, F. Villa, N. Vittorio, L. Wade, B. Wandelt, M. White, A. Wilkinson, D. Yvon, A. Zacchei, J. Zibin, and A. Zonca
Abstract: We analyse the implications of the Planck data for cosmic inflation. The Planck nominal mission temperature anisotropy measurements, combined with the WMAP large-angle polarization, constrain the scalar spectral index to be n(s) = 0.9603 +/- 0:0073, ruling out exact scale invariance at over 5 sigma Planck establishes an upper bound on the tensor-to-scalar ratio of r < 0.11 (95% CL). The Planck data thus shrink the space of allowed standard inflationary models preferring potentials with V '' < 0. Exponential potential models, the simplest hybrid inflationary models, and monomial potential models of degree n >= 2 do not provide a good fit to the data. Planck does not find statistically significant running of the scalar spectral index, obtaining dn(s)/dln k = -0.0134 +/- 0.0090. We verify these conclusions through a numerical analysis, which makes no slowroll approximation, and carry out a Bayesian parameter estimation and model-selection analysis for a number of inflationary models including monomial, natural, and hilltop potentials. For each model, we present the Planck constraints on the parameters of the potential and explore several possibilities for the post-inflationary entropy generation epoch, thus obtaining nontrivial data-driven constraints. We also present a direct reconstruction of the observable range of the inflaton potential. Unless a quartic term is allowed in the potential, we find results consistent with second-order slow-roll predictions. We also investigate whether the primordial power spectrum contains any features. We find that models with a parameterized oscillatory feature improve the fit by delta 2 10; however, Bayesian evidence does not prefer these models. We constrain several single-field inflation models with generalized Lagrangians by combining power spectrum data with Planck bounds on fNL. Planck constrains with unprecedented accuracy the amplitude and possible correlation (with the adiabatic mode) of non-decaying isocurvature f
Published: 2014

28. Treatment of Waldenstrom's macroglobulinemia with the combination of fludarabine and cyclophosphamide

Author: Dimopoulos, MA Hamilos, G Efstathiou, E Siapkaras, I and Matsouka, C Gika, D Grigoraki, V Papadimitriou, C and Mitsibounas, D Anagnostopoulos, N
Subjects: Health Sciences, Επιστήμες Υγείας
Abstract: Fludarabine is an active agent for the treatment of Waldenstrom’s macroglobulinemia (WM) and its combination with cyclophosphamide has been effective in many patients with low-grade lymphoma and chronic lymphocytic leukemia. Based on these data, we administered the combination of fludarabine (25 mg/m(2) IV day 1-3) and cyclophosphamide (250 mg/m(2) IV day 1-3,) to 11 patients with WM. Most patients had features indicating poor prognosis including median age of 73 years (range 60-84 years), hemoglobin, 100 g/l in 73%, B-2-microglobulin. 3 mg/l in 64%, symptomatic hyperviscosity in 55% of patients. Only 2 patients were previously untreated, 7 were primary refractory and 2 were relapsing on treatment. The fludarabine-cyclophosphamide combination (FC) was administered every 4 weeks for a total of four courses. Partial response, defined by at least 50% reduction of serum monoclonal protein and of tumor infiltrate at all involved sites was documented in 6 patients (55%) (The median time to response was 4 months). Responding patients demonstrated resolution of disease-related symptoms and correction of anemia. Median time to progression for all patients was 24 months. With a mean follow-up of 28 months, two of six responding patients have progressed so far. The probability of 2-year survival is 70%. This regimen was relatively well tolerated. Complications included neutropenia grade 3 or 4 in 3 patients and thrombocytopenia grade 3 or 4 in 2 patients. There were five infectious episodes including two episodes of neutropenic fever. We conclude that the FC combination appears to be active in patients with WM most of whom were resistant to treatment and had poor prognostic factors. The addition of rituximab to FC requires further investigation.
Published: 2002

29. Planck intermediate results: VIII. Filaments between interacting clusters

Author: Collaboration, P, Ade, P, Aghanim, N, Arnaud, M, Ashdown, M, Atrio-Barandela, F, Aumont, J, Baccigalupi, C, Balbi, A, Banday, A, Barreiro, R, Bartlett, J, Battaner, E, Benabed, K, Benoit, A, Bernard, J, Bersanelli, M, Bhatia, R, Bikmaev, I, Bohringer, H, Bonaldi, A, Bond, J, Borrill, J, Bouchet, F, Bourdin, H, Burenin, R, Burigana, C, Cabella, P, Cardoso, J, Castex, G, Catalano, A, Cayon, L, Chamballu, A, Chary, R, Chiang, L, Chon, G, Christensen, P, Clements, D, Colafrancesco, S, Colombo, L, Comis, B, Coulais, A, Crill, B, Cuttaia, F, Da Silva, A, Dahle, H, Danese, L, Davis, R, De Bernardis, P, De Gasperis, G, De Zotti, G, Delabrouille, J, Democles, J, Desert, F, Diego, J, Dolag, K, Dole, H, Donzelli, S, Dore, O, Dorl, U, Douspis, M, Dupac, X, Efstathiou, G, Ensslin, T, Eriksen, H, Finelli, F, Flores-Cacho, I, Forni, O, Frailis, M, Franceschi, E, Frommert, M, Galeotta, S, Ganga, K, Genova-Santos, R, Giard, M, Gilfanov, M, Giraud-Heraud, Y, Gonzalez-Nuevo, J, Gorski, K, Gregorio, A, Gruppuso, A, Hansen, F, Harrison, D, Hempel, A, Henrot-Versille, S, Hernandez-Monteagudo, C, Herranz, D, Hildebrandt, S, Hivon, E, Hobson, M, Holmes, W, Hovest, W, Hurier, G, Jaffe, T, Jaffe, A, Jagemann, T, Jones, W, Juvela, M, Khamitov, I, Kisner, T, Kneissl, R, Knoche, J, Knox, L, Kunz, M, Kurki-Suonio, H, Lagache, G, Lamarre, J, Lasenby, A, Lawrence, C, Le Jeune, M, Leonardi, R, Lilje, P, Linden-Vørnle, M, Linden-Vornle, M, Lopez-Caniego, M, Lubin, P, Luzzi, G, Macias-Perez, J, Maffei, B, Maino, D, Mandolesi, N, Maris, M, Marleau, F, Marshall, D, Martinez-Gonzalez, E, Masi, S, Massardi, M, Matarrese, S, Matthai, F, Mazzotta, P, Mei, S, Melchiorri, A, Melin, J, Mendes, L, Mennella, A, Mitra, S, Miville-Deschenes, M, Moneti, A, Montier, L, Morgante, G, Munshi, D, Murphy, J, Naselsky, P, Nati, F, Natoli, P, Nørgaard-Nielsen, H, Norgaard-Nielsen, H, Noviello, F, Novikov, D, Novikov, I, Osborne, S, Pajot, F, Paoletti, D, Pasian, F, Patanchon, G, Perdereau, O, Perotto, L, Perrotta, F, Piacentini, F, Piat, M, Pierpaoli, E, Piffaretti, R, Plaszczynski, S, Pointecouteau, E, Polenta, G, Ponthieu, N, Popa, L, Poutanen, T, Pratt, G, Prunet, S, Puget, J, Rachen, J, Rebolo, R, Reinecke, M, Remazeilles, M, Renault, C, Ricciardi, S, Riller, T, Ristorcelli, I, Rocha, G, Roman, M, Rosset, C, Rossetti, M, Rubino-Martin, J, Rusholme, B, Sandri, M, Savini, G, Schaefer, B, Scott, D, Smoot, G, Starck, J, Sudiwala, R, Sunyaev, R, Sutton, D, Suur-Uski, A, Sygnet, J, Tauber, J, Terenzi, L, Toffolatti, L, Tomasi, M, Tristram, M, Valenziano, L, Van Tent, B, Vielva, P, Villa, F, Vittorio, N, Wade, L, Wandelt, B, Welikala, N, White, S, Yvon, D, Zacchei, A, Zonca, A, Planck Collaboration, P.A.R. Ade, N. Aghanim, M. Arnaud, M. Ashdown, F. Atrio-Barandela, J. Aumont, C. Baccigalupi, A. Balbi, A.J. Banday, R.B. Barreiro, J.G. Bartlett, E. Battaner, K. Benabed, A. Benoit, J.P. Bernard, M. Bersanelli, R. Bhatia, I. Bikmaev, H. Bohringer, A. Bonaldi, J.R. Bond, J. Borrill, F.R. Bouchet, H. Bourdin, R. Burenin, C. Burigana, P. Cabella, J.F. Cardoso, G. Castex, A. Catalano, L. Cayon, A. Chamballu, R.R. Chary, L.Y. Chiang, G. Chon, P.R. Christensen, D.L. Clements, S. Colafrancesco, L.P.L. Colombo, Barbara Comis, A. Coulais, B.P. Crill, F. Cuttaia, A. Da Silva, H. Dahle, L. Danese, R.J. Davis, Paolo De Bernardis, G. De Gasperis, G. De Zotti, J. Delabrouille, J. Democles, F.X. Desert, J.M. Diego, K. Dolag, H. Dole, S. Donzelli, O. Dore, U. Dorl, M. Douspis, X. Dupac, G. Efstathiou, T.A. Ensslin, H.K. Eriksen, F. Finelli, I. Flores-Cacho, O. Forni, M. Frailis, E. Franceschi, M. Frommert, S. Galeotta, K. Ganga, R.T. Genova-Santos, M. Giard, M. Gilfanov, Y. Giraud-Heraud, J. Gonzalez-Nuevo, K.M. Gorski, A. Gregorio, A. Gruppuso, F.K. Hansen, D. Harrison, A. Hempel, S. Henrot-Versille, C. Hernandez-Monteagudo, D. Herranz, S.R. Hildebrandt, E. Hivon, M. Hobson, W.A. Holmes, W. Hovest, G. Hurier, T.R. Jaffe, A.H. Jaffe, T. Jagemann, W.C. Jones, M. Juvela, I. Khamitov, T.S. Kisner, R. Kneissl, J. Knoche, L. Knox, M. Kunz, H. Kurki-Suonio, G. Lagache, J.M. Lamarre, A. Lasenby, C.R. Lawrence, M. Le Jeune, R. Leonardi, P.B. Lilje, M. Linden-Vørnle, M. Linden-Vornle, M. Lopez-Caniego, P.M. Lubin, Gemma Luzzi, J.F. Macias-Perez, B. Maffei, D. Maino, N. Mandolesi, M. Maris, F. Marleau, D.J. Marshall, E. Martinez-Gonzalez, Silvia Masi, M. Massardi, S. Matarrese, F. Matthai, P. Mazzotta, S. Mei, Alessandro Melchiorri, J.B. Melin, L. Mendes, A. Mennella, S. Mitra, M.A. Miville-Deschenes, A. Moneti, L. Montier, G. Morgante, D. Munshi, J.A. Murphy, P. Naselsky, Federico Nati, P. Natoli, H.U. Nørgaard-Nielsen, H.U. Norgaard-Nielsen, F. Noviello, D. Novikov, I. Novikov, S. Osborne, F. Pajot, D. Paoletti, F. Pasian, G. Patanchon, O. Perdereau, L. Perotto, F. Perrotta, Francesco Piacentini, M. Piat, E. Pierpaoli, R. Piffaretti, S. Plaszczynski, E. Pointecouteau, Gianluca Polenta, N. Ponthieu, L. Popa, T. Poutanen, G.W. Pratt, S. Prunet, J.L. Puget, J.P. Rachen, R. Rebolo, M. Reinecke, M. Remazeilles, C. Renault, S. Ricciardi, T. Riller, I. Ristorcelli, G. Rocha, M. Roman, C. Rosset, M. Rossetti, J.A. Rubino-Martin, B. Rusholme, M. Sandri, Giorgio Savini, B.M. Schaefer, D. Scott, G.F. Smoot, J.L. Starck, R. Sudiwala, R. Sunyaev, D. Sutton, A.S. Suur-Uski, J.F. Sygnet, J.A. Tauber, L. Terenzi, L. Toffolatti, M. Tomasi, M. Tristram, L. Valenziano, B. Van Tent, P. Vielva, F. Villa, N. Vittorio, L.A. Wade, B.D. Wandelt, N. Welikala, S.D.M. White, D. Yvon, A. Zacchei, A. Zonca, Collaboration, P, Ade, P, Aghanim, N, Arnaud, M, Ashdown, M, Atrio-Barandela, F, Aumont, J, Baccigalupi, C, Balbi, A, Banday, A, Barreiro, R, Bartlett, J, Battaner, E, Benabed, K, Benoit, A, Bernard, J, Bersanelli, M, Bhatia, R, Bikmaev, I, Bohringer, H, Bonaldi, A, Bond, J, Borrill, J, Bouchet, F, Bourdin, H, Burenin, R, Burigana, C, Cabella, P, Cardoso, J, Castex, G, Catalano, A, Cayon, L, Chamballu, A, Chary, R, Chiang, L, Chon, G, Christensen, P, Clements, D, Colafrancesco, S, Colombo, L, Comis, B, Coulais, A, Crill, B, Cuttaia, F, Da Silva, A, Dahle, H, Danese, L, Davis, R, De Bernardis, P, De Gasperis, G, De Zotti, G, Delabrouille, J, Democles, J, Desert, F, Diego, J, Dolag, K, Dole, H, Donzelli, S, Dore, O, Dorl, U, Douspis, M, Dupac, X, Efstathiou, G, Ensslin, T, Eriksen, H, Finelli, F, Flores-Cacho, I, Forni, O, Frailis, M, Franceschi, E, Frommert, M, Galeotta, S, Ganga, K, Genova-Santos, R, Giard, M, Gilfanov, M, Giraud-Heraud, Y, Gonzalez-Nuevo, J, Gorski, K, Gregorio, A, Gruppuso, A, Hansen, F, Harrison, D, Hempel, A, Henrot-Versille, S, Hernandez-Monteagudo, C, Herranz, D, Hildebrandt, S, Hivon, E, Hobson, M, Holmes, W, Hovest, W, Hurier, G, Jaffe, T, Jaffe, A, Jagemann, T, Jones, W, Juvela, M, Khamitov, I, Kisner, T, Kneissl, R, Knoche, J, Knox, L, Kunz, M, Kurki-Suonio, H, Lagache, G, Lamarre, J, Lasenby, A, Lawrence, C, Le Jeune, M, Leonardi, R, Lilje, P, Linden-Vørnle, M, Linden-Vornle, M, Lopez-Caniego, M, Lubin, P, Luzzi, G, Macias-Perez, J, Maffei, B, Maino, D, Mandolesi, N, Maris, M, Marleau, F, Marshall, D, Martinez-Gonzalez, E, Masi, S, Massardi, M, Matarrese, S, Matthai, F, Mazzotta, P, Mei, S, Melchiorri, A, Melin, J, Mendes, L, Mennella, A, Mitra, S, Miville-Deschenes, M, Moneti, A, Montier, L, Morgante, G, Munshi, D, Murphy, J, Naselsky, P, Nati, F, Natoli, P, Nørgaard-Nielsen, H, Norgaard-Nielsen, H, Noviello, F, Novikov, D, Novikov, I, Osborne, S, Pajot, F, Paoletti, D, Pasian, F, Patanchon, G, Perdereau, O, Perotto, L, Perrotta, F, Piacentini, F, Piat, M, Pierpaoli, E, Piffaretti, R, Plaszczynski, S, Pointecouteau, E, Polenta, G, Ponthieu, N, Popa, L, Poutanen, T, Pratt, G, Prunet, S, Puget, J, Rachen, J, Rebolo, R, Reinecke, M, Remazeilles, M, Renault, C, Ricciardi, S, Riller, T, Ristorcelli, I, Rocha, G, Roman, M, Rosset, C, Rossetti, M, Rubino-Martin, J, Rusholme, B, Sandri, M, Savini, G, Schaefer, B, Scott, D, Smoot, G, Starck, J, Sudiwala, R, Sunyaev, R, Sutton, D, Suur-Uski, A, Sygnet, J, Tauber, J, Terenzi, L, Toffolatti, L, Tomasi, M, Tristram, M, Valenziano, L, Van Tent, B, Vielva, P, Villa, F, Vittorio, N, Wade, L, Wandelt, B, Welikala, N, White, S, Yvon, D, Zacchei, A, Zonca, A, Planck Collaboration, P.A.R. Ade, N. Aghanim, M. Arnaud, M. Ashdown, F. Atrio-Barandela, J. Aumont, C. Baccigalupi, A. Balbi, A.J. Banday, R.B. Barreiro, J.G. Bartlett, E. Battaner, K. Benabed, A. Benoit, J.P. Bernard, M. Bersanelli, R. Bhatia, I. Bikmaev, H. Bohringer, A. Bonaldi, J.R. Bond, J. Borrill, F.R. Bouchet, H. Bourdin, R. Burenin, C. Burigana, P. Cabella, J.F. Cardoso, G. Castex, A. Catalano, L. Cayon, A. Chamballu, R.R. Chary, L.Y. Chiang, G. Chon, P.R. Christensen, D.L. Clements, S. Colafrancesco, L.P.L. Colombo, Barbara Comis, A. Coulais, B.P. Crill, F. Cuttaia, A. Da Silva, H. Dahle, L. Danese, R.J. Davis, Paolo De Bernardis, G. De Gasperis, G. De Zotti, J. Delabrouille, J. Democles, F.X. Desert, J.M. Diego, K. Dolag, H. Dole, S. Donzelli, O. Dore, U. Dorl, M. Douspis, X. Dupac, G. Efstathiou, T.A. Ensslin, H.K. Eriksen, F. Finelli, I. Flores-Cacho, O. Forni, M. Frailis, E. Franceschi, M. Frommert, S. Galeotta, K. Ganga, R.T. Genova-Santos, M. Giard, M. Gilfanov, Y. Giraud-Heraud, J. Gonzalez-Nuevo, K.M. Gorski, A. Gregorio, A. Gruppuso, F.K. Hansen, D. Harrison, A. Hempel, S. Henrot-Versille, C. Hernandez-Monteagudo, D. Herranz, S.R. Hildebrandt, E. Hivon, M. Hobson, W.A. Holmes, W. Hovest, G. Hurier, T.R. Jaffe, A.H. Jaffe, T. Jagemann, W.C. Jones, M. Juvela, I. Khamitov, T.S. Kisner, R. Kneissl, J. Knoche, L. Knox, M. Kunz, H. Kurki-Suonio, G. Lagache, J.M. Lamarre, A. Lasenby, C.R. Lawrence, M. Le Jeune, R. Leonardi, P.B. Lilje, M. Linden-Vørnle, M. Linden-Vornle, M. Lopez-Caniego, P.M. Lubin, Gemma Luzzi, J.F. Macias-Perez, B. Maffei, D. Maino, N. Mandolesi, M. Maris, F. Marleau, D.J. Marshall, E. Martinez-Gonzalez, Silvia Masi, M. Massardi, S. Matarrese, F. Matthai, P. Mazzotta, S. Mei, Alessandro Melchiorri, J.B. Melin, L. Mendes, A. Mennella, S. Mitra, M.A. Miville-Deschenes, A. Moneti, L. Montier, G. Morgante, D. Munshi, J.A. Murphy, P. Naselsky, Federico Nati, P. Natoli, H.U. Nørgaard-Nielsen, H.U. Norgaard-Nielsen, F. Noviello, D. Novikov, I. Novikov, S. Osborne, F. Pajot, D. Paoletti, F. Pasian, G. Patanchon, O. Perdereau, L. Perotto, F. Perrotta, Francesco Piacentini, M. Piat, E. Pierpaoli, R. Piffaretti, S. Plaszczynski, E. Pointecouteau, Gianluca Polenta, N. Ponthieu, L. Popa, T. Poutanen, G.W. Pratt, S. Prunet, J.L. Puget, J.P. Rachen, R. Rebolo, M. Reinecke, M. Remazeilles, C. Renault, S. Ricciardi, T. Riller, I. Ristorcelli, G. Rocha, M. Roman, C. Rosset, M. Rossetti, J.A. Rubino-Martin, B. Rusholme, M. Sandri, Giorgio Savini, B.M. Schaefer, D. Scott, G.F. Smoot, J.L. Starck, R. Sudiwala, R. Sunyaev, D. Sutton, A.S. Suur-Uski, J.F. Sygnet, J.A. Tauber, L. Terenzi, L. Toffolatti, M. Tomasi, M. Tristram, L. Valenziano, B. Van Tent, P. Vielva, F. Villa, N. Vittorio, L.A. Wade, B.D. Wandelt, N. Welikala, S.D.M. White, D. Yvon, A. Zacchei, and A. Zonca
Abstract: Context. About half of the baryons of the Universe are expected to be in the form of filaments of hot and low-density intergalactic medium. Most of these baryons remain undetected even by the most advanced X-ray observatories, which are limited in sensitivity to the diffuse low-density medium. Aims. The Planck satellite has provided hundreds of detections of the hot gas in clusters of galaxies via the thermal Sunyaev-Zel'dovich (tSZ) effect and is an ideal instrument for studying extended low-density media through the tSZ effect. In this paper we use the Planck data to search for signatures of a fraction of these missing baryons between pairs of galaxy clusters. Methods. Cluster pairs are good candidates for searching for the hotter and denser phase of the intergalactic medium (which is more easily observed through the SZ effect). Using an X-ray catalogue of clusters and the Planck data, we selected physical pairs of clusters as candidates. Using the Planck data, we constructed a local map of the tSZ effect centred on each pair of galaxy clusters. ROSAT data were used to construct X-ray maps of these pairs. After modelling and subtracting the tSZ effect and X-ray emission for each cluster in the pair, we studied the residuals on both the SZ and X-ray maps. Results. For the merging cluster pair A399-A401 we observe a significant tSZ effect signal in the intercluster region beyond the virial radii of the clusters. A joint X-ray SZ analysis allows us to constrain the temperature and density of this intercluster medium. We obtain a temperature of kT = 7.1 ± 0.9 keV (consistent with previous estimates) and a baryon density of (3.7 ± 0.2) × 10-4 cm -3. Conclusions. The Planck satellite mission has provided the first SZ detection of the hot and diffuse intercluster gas.
Published: 2013

30. Planck intermediate results VII. Statistical properties of infrared and radio extragalactic sources from the Planck Early Release Compact Source Catalogue at frequencies between 100 and 857 GHz

Author: Collaboration, P, Ade, P, Aghanim, N, Argueso, F, Arnaud, M, Ashdown, M, Atrio-Barandela, F, Aumont, J, Baccigalupi, C, Balbi, A, Banday, A, Barreiro, R, Battaner, E, Benabed, K, Benoit, A, Bernard, J, Bersanelli, M, Bethermin, M, Bhatia, R, Bonaldi, A, Bond, J, Borrill, J, Bouchet, F, Burigana, C, Cabella, P, Cardoso, J, Catalano, A, Cayon, L, Chamballu, A, Chary, R, Chen, X, Chiang, L, Christensen, P, Clements, D, Colafrancesco, S, Colombi, S, Colombo, L, Coulais, A, Crill, B, Cuttaia, F, Danese, L, Davis, R, De Bernardis, P, De Gasperis, G, De Zotti, G, Delabrouille, J, Dickinson, C, Diego, J, Dole, H, Donzelli, S, Dore, O, Dorl, U, Douspis, M, Dupac, X, Efstathiou, G, Ensslin, T, Eriksen, H, Finelli, F, Forni, O, Fosalba, P, Frailis, M, Franceschi, E, Galeotta, S, Ganga, K, Giard, M, Giardino, G, Giraud-Heraud, Y, Gonzalez-Nuevo, J, Gorski, K, Gregorio, A, Gruppuso, A, Hansen, F, Harrison, D, Henrot-Versille, S, Hernandez-Monteagudo, C, Herranz, D, Hildebrandt, S, Hivon, E, Hobson, M, Holmes, W, Jaffe, T, Jaffe, A, Jagemann, T, Jones, W, Juvela, M, Keihanen, E, Kisner, T, Kneissl, R, Knoche, J, Knox, L, Kunz, M, Kurinsky, N, Kurki-Suonio, H, Lagache, G, Lahteenmaki, A, Lamarre, J, Lasenby, A, Lawrence, C, Leonardi, R, Lilje, P, Lopez-Caniego, M, Macias-Perez, J, Maino, D, Mandolesi, N, Maris, M, Marshall, D, Martinez-Gonzalez, E, Masi, S, Massardi, M, Matarrese, S, Mazzotta, P, Melchiorri, A, Mendes, L, Mennella, A, Mitra, S, Miville-Deschenes, M, Moneti, A, Montier, L, Morgante, G, Mortlock, D, Munshi, D, Murphy, J, Naselsky, P, Nati, F, Natoli, P, Nørgaard-Nielsen, H, Norgaard-Nielsen, H, Noviello, F, Novikov, D, Novikov, I, Osborne, S, Pajot, F, Paladini, R, Paoletti, D, Partridge, B, Pasian, F, Patanchon, G, Perdereau, O, Perotto, L, Perrotta, F, Piacentini, F, Piat, M, Pierpaoli, E, Plaszczynski, S, Pointecouteau, E, Polenta, G, Ponthieu, N, Popa, L, Poutanen, T, Pratt, G, Prunet, S, Puget, J, Rachen, J, Reach, W, Rebolo, R, Reinecke, M, Renault, C, Ricciardi, S, Riller, T, Ristorcelli, I, Rocha, G, Rosset, C, Rowan-Robinson, M, Rubino-Martin, J, Rusholme, B, Sajina, A, Sandri, M, Savini, G, Scott, D, Smoot, G, Starck, J, Sudiwala, R, Suur-Uski, A, Sygnet, J, Tauber, J, Terenzi, L, Toffolatti, L, Tomasi, M, Tristram, M, Tucci, M, Turler, M, Valenziano, L, Van Tent, B, Vielva, P, Villa, F, Vittorio, N, Wade, L, Wandelt, B, White, M, Yvon, D, Zacchei, A, Zonca, A, Planck Collaboration, P.A.R. Ade, N. Aghanim, F. Argueso, M. Arnaud, M. Ashdown, F. Atrio-Barandela, J. Aumont, C. Baccigalupi, A. Balbi, A.J. Banday, R.B. Barreiro, E. Battaner, K. Benabed, A. Benoit, J.P. Bernard, M. Bersanelli, M. Bethermin, R. Bhatia, A. Bonaldi, J.R. Bond, J. Borrill, F.R. Bouchet, C. Burigana, P. Cabella, J.F. Cardoso, A. Catalano, L. Cayon, A. Chamballu, R.R. Chary, X. Chen, L.Y. Chiang, P.R. Christensen, D.L. Clements, S. Colafrancesco, S. Colombi, L.P.L. Colombo, A. Coulais, B.P. Crill, F. Cuttaia, L. Danese, R.J. Davis, Paolo De Bernardis, G. De Gasperis, G. De Zotti, J. Delabrouille, C. Dickinson, J.M. Diego, H. Dole, S. Donzelli, O. Dore, U. Dorl, M. Douspis, X. Dupac, G. Efstathiou, T.A. Ensslin, H.K. Eriksen, F. Finelli, O. Forni, P. Fosalba, M. Frailis, E. Franceschi, S. Galeotta, K. Ganga, M. Giard, G. Giardino, Y. Giraud-Heraud, J. Gonzalez-Nuevo, K.M. Gorski, A. Gregorio, A. Gruppuso, F.K. Hansen, D. Harrison, S. Henrot-Versille, C. Hernandez-Monteagudo, D. Herranz, S.R. Hildebrandt, E. Hivon, M. Hobson, W.A. Holmes, T.R. Jaffe, A.H. Jaffe, T. Jagemann, W.C. Jones, M. Juvela, E. Keihanen, T.S. Kisner, R. Kneissl, J. Knoche, L. Knox, M. Kunz, N. Kurinsky, H. Kurki-Suonio, G. Lagache, A. Lahteenmaki, J.M. Lamarre, A. Lasenby, C.R. Lawrence, R. Leonardi, P.B. Lilje, M. Lopez-Caniego, J.F. Macias-Perez, D. Maino, N. Mandolesi, M. Maris, D.J. Marshall, E. Martinez-Gonzalez, Silvia Masi, M. Massardi, S. Matarrese, P. Mazzotta, Alessandro Melchiorri, L. Mendes, A. Mennella, S. Mitra, M.A. Miville-Deschenes, A. Moneti, L. Montier, G. Morgante, D. Mortlock, D. Munshi, J.A. Murphy, P. Naselsky, Federico Nati, P. Natoli, H.U. Nørgaard-Nielsen, H.U. Norgaard-Nielsen, F. Noviello, D. Novikov, I. Novikov, S. Osborne, F. Pajot, R. Paladini, D. Paoletti, B. Partridge, F. Pasian, G. Patanchon, O. Perdereau, L. Perotto, F. Perrotta, Francesco Piacentini, M. Piat, E. Pierpaoli, S. Plaszczynski, E. Pointecouteau, Gianluca Polenta, N. Ponthieu, L. Popa, T. Poutanen, G.W. Pratt, S. Prunet, J.L. Puget, J.P. Rachen, W.T. Reach, R. Rebolo, M. Reinecke, C. Renault, S. Ricciardi, T. Riller, I. Ristorcelli, G. Rocha, C. Rosset, M. Rowan-Robinson, J.A. Rubino-Martin, B. Rusholme, A. Sajina, M. Sandri, Giorgio Savini, D. Scott, G.F. Smoot, J.L. Starck, R. Sudiwala, A.S. Suur-Uski, J.F. Sygnet, J.A. Tauber, L. Terenzi, L. Toffolatti, M. Tomasi, M. Tristram, M. Tucci, M. Turler, L. Valenziano, B. Van Tent, P. Vielva, F. Villa, N. Vittorio, L.A. Wade, B.D. Wandelt, M. White, D. Yvon, A. Zacchei, A. Zonca, Collaboration, P, Ade, P, Aghanim, N, Argueso, F, Arnaud, M, Ashdown, M, Atrio-Barandela, F, Aumont, J, Baccigalupi, C, Balbi, A, Banday, A, Barreiro, R, Battaner, E, Benabed, K, Benoit, A, Bernard, J, Bersanelli, M, Bethermin, M, Bhatia, R, Bonaldi, A, Bond, J, Borrill, J, Bouchet, F, Burigana, C, Cabella, P, Cardoso, J, Catalano, A, Cayon, L, Chamballu, A, Chary, R, Chen, X, Chiang, L, Christensen, P, Clements, D, Colafrancesco, S, Colombi, S, Colombo, L, Coulais, A, Crill, B, Cuttaia, F, Danese, L, Davis, R, De Bernardis, P, De Gasperis, G, De Zotti, G, Delabrouille, J, Dickinson, C, Diego, J, Dole, H, Donzelli, S, Dore, O, Dorl, U, Douspis, M, Dupac, X, Efstathiou, G, Ensslin, T, Eriksen, H, Finelli, F, Forni, O, Fosalba, P, Frailis, M, Franceschi, E, Galeotta, S, Ganga, K, Giard, M, Giardino, G, Giraud-Heraud, Y, Gonzalez-Nuevo, J, Gorski, K, Gregorio, A, Gruppuso, A, Hansen, F, Harrison, D, Henrot-Versille, S, Hernandez-Monteagudo, C, Herranz, D, Hildebrandt, S, Hivon, E, Hobson, M, Holmes, W, Jaffe, T, Jaffe, A, Jagemann, T, Jones, W, Juvela, M, Keihanen, E, Kisner, T, Kneissl, R, Knoche, J, Knox, L, Kunz, M, Kurinsky, N, Kurki-Suonio, H, Lagache, G, Lahteenmaki, A, Lamarre, J, Lasenby, A, Lawrence, C, Leonardi, R, Lilje, P, Lopez-Caniego, M, Macias-Perez, J, Maino, D, Mandolesi, N, Maris, M, Marshall, D, Martinez-Gonzalez, E, Masi, S, Massardi, M, Matarrese, S, Mazzotta, P, Melchiorri, A, Mendes, L, Mennella, A, Mitra, S, Miville-Deschenes, M, Moneti, A, Montier, L, Morgante, G, Mortlock, D, Munshi, D, Murphy, J, Naselsky, P, Nati, F, Natoli, P, Nørgaard-Nielsen, H, Norgaard-Nielsen, H, Noviello, F, Novikov, D, Novikov, I, Osborne, S, Pajot, F, Paladini, R, Paoletti, D, Partridge, B, Pasian, F, Patanchon, G, Perdereau, O, Perotto, L, Perrotta, F, Piacentini, F, Piat, M, Pierpaoli, E, Plaszczynski, S, Pointecouteau, E, Polenta, G, Ponthieu, N, Popa, L, Poutanen, T, Pratt, G, Prunet, S, Puget, J, Rachen, J, Reach, W, Rebolo, R, Reinecke, M, Renault, C, Ricciardi, S, Riller, T, Ristorcelli, I, Rocha, G, Rosset, C, Rowan-Robinson, M, Rubino-Martin, J, Rusholme, B, Sajina, A, Sandri, M, Savini, G, Scott, D, Smoot, G, Starck, J, Sudiwala, R, Suur-Uski, A, Sygnet, J, Tauber, J, Terenzi, L, Toffolatti, L, Tomasi, M, Tristram, M, Tucci, M, Turler, M, Valenziano, L, Van Tent, B, Vielva, P, Villa, F, Vittorio, N, Wade, L, Wandelt, B, White, M, Yvon, D, Zacchei, A, Zonca, A, Planck Collaboration, P.A.R. Ade, N. Aghanim, F. Argueso, M. Arnaud, M. Ashdown, F. Atrio-Barandela, J. Aumont, C. Baccigalupi, A. Balbi, A.J. Banday, R.B. Barreiro, E. Battaner, K. Benabed, A. Benoit, J.P. Bernard, M. Bersanelli, M. Bethermin, R. Bhatia, A. Bonaldi, J.R. Bond, J. Borrill, F.R. Bouchet, C. Burigana, P. Cabella, J.F. Cardoso, A. Catalano, L. Cayon, A. Chamballu, R.R. Chary, X. Chen, L.Y. Chiang, P.R. Christensen, D.L. Clements, S. Colafrancesco, S. Colombi, L.P.L. Colombo, A. Coulais, B.P. Crill, F. Cuttaia, L. Danese, R.J. Davis, Paolo De Bernardis, G. De Gasperis, G. De Zotti, J. Delabrouille, C. Dickinson, J.M. Diego, H. Dole, S. Donzelli, O. Dore, U. Dorl, M. Douspis, X. Dupac, G. Efstathiou, T.A. Ensslin, H.K. Eriksen, F. Finelli, O. Forni, P. Fosalba, M. Frailis, E. Franceschi, S. Galeotta, K. Ganga, M. Giard, G. Giardino, Y. Giraud-Heraud, J. Gonzalez-Nuevo, K.M. Gorski, A. Gregorio, A. Gruppuso, F.K. Hansen, D. Harrison, S. Henrot-Versille, C. Hernandez-Monteagudo, D. Herranz, S.R. Hildebrandt, E. Hivon, M. Hobson, W.A. Holmes, T.R. Jaffe, A.H. Jaffe, T. Jagemann, W.C. Jones, M. Juvela, E. Keihanen, T.S. Kisner, R. Kneissl, J. Knoche, L. Knox, M. Kunz, N. Kurinsky, H. Kurki-Suonio, G. Lagache, A. Lahteenmaki, J.M. Lamarre, A. Lasenby, C.R. Lawrence, R. Leonardi, P.B. Lilje, M. Lopez-Caniego, J.F. Macias-Perez, D. Maino, N. Mandolesi, M. Maris, D.J. Marshall, E. Martinez-Gonzalez, Silvia Masi, M. Massardi, S. Matarrese, P. Mazzotta, Alessandro Melchiorri, L. Mendes, A. Mennella, S. Mitra, M.A. Miville-Deschenes, A. Moneti, L. Montier, G. Morgante, D. Mortlock, D. Munshi, J.A. Murphy, P. Naselsky, Federico Nati, P. Natoli, H.U. Nørgaard-Nielsen, H.U. Norgaard-Nielsen, F. Noviello, D. Novikov, I. Novikov, S. Osborne, F. Pajot, R. Paladini, D. Paoletti, B. Partridge, F. Pasian, G. Patanchon, O. Perdereau, L. Perotto, F. Perrotta, Francesco Piacentini, M. Piat, E. Pierpaoli, S. Plaszczynski, E. Pointecouteau, Gianluca Polenta, N. Ponthieu, L. Popa, T. Poutanen, G.W. Pratt, S. Prunet, J.L. Puget, J.P. Rachen, W.T. Reach, R. Rebolo, M. Reinecke, C. Renault, S. Ricciardi, T. Riller, I. Ristorcelli, G. Rocha, C. Rosset, M. Rowan-Robinson, J.A. Rubino-Martin, B. Rusholme, A. Sajina, M. Sandri, Giorgio Savini, D. Scott, G.F. Smoot, J.L. Starck, R. Sudiwala, A.S. Suur-Uski, J.F. Sygnet, J.A. Tauber, L. Terenzi, L. Toffolatti, M. Tomasi, M. Tristram, M. Tucci, M. Turler, L. Valenziano, B. Van Tent, P. Vielva, F. Villa, N. Vittorio, L.A. Wade, B.D. Wandelt, M. White, D. Yvon, A. Zacchei, and A. Zonca
Abstract: We make use of the Planck all-sky survey to derive number counts and spectral indices of extragalactic sources - infrared and radio sources - from the Planck Early Release Compact Source Catalogue (ERCSC) at 100 to 857 GHz (3mm to 350 mu m). Three zones (deep, medium and shallow) of approximately homogeneous coverage are used to permit a clean and controlled correction for incompleteness, which was explicitly not done for the ERCSC, as it was aimed at providing lists of sources to be followed up. Our sample, prior to the 80% completeness cut, contains between 217 sources at 100 GHz and 1058 sources at 857 GHz over about 12 800 to 16 550 deg(2) (31 to 40% of the sky). After the 80% completeness cut, between 122 and 452 and sources remain, with flux densities above 0.3 and 1.9 Jy at 100 and 857 GHz. The sample so defined can be used for statistical analysis. Using the multi-frequency coverage of the Planck High Frequency Instrument, all the sources have been classified as either dust-dominated (infrared galaxies) or synchrotron-dominated (radio galaxies) on the basis of their spectral energy distributions (SED). Our sample is thus complete, flux-limited and color-selected to differentiate between the two populations. We find an approximately equal number of synchrotron and dusty sources between 217 and 353 GHz; at 353 GHz or higher (or 217 GHz and lower) frequencies, the number is dominated by dusty (synchrotron) sources, as expected. For most of the sources, the spectral indices are also derived. We provide for the first time counts of bright sources from 353 to 857 GHz and the contributions from dusty and synchrotron sources at all HFI frequencies in the key spectral range where these spectra are crossing. The observed counts are in the Euclidean regime. The number counts are compared to previously published data (from earlier Planck results, Herschel, BLAST, SCUBA, LABOCA, SPT, and ACT) and models taking into account both radio or infrared galaxies, and covering a
Published: 2013

31. Planck early results. VI. The High Frequency Instrument data processing

Author: Hfi Core Team, P, Ade, P, Aghanim, N, Ansari, R, Arnaud, M, Ashdown, M, Aumont, J, Banday, A, Bartelmann, M, Bartlett, J, Battaner, E, Benabed, K, Benoit, A, Bernard, J, Bersanelli, M, Bock, J, Bond, J, Borrill, J, Bouchet, F, Boulanger, F, Bradshaw, T, Bucher, M, Cardoso, J, Castex, G, Catalano, A, Challinor, A, Chamballu, A, Chary, R, Chen, X, Chiang, C, Church, S, Clements, D, Colley, J, Colombi, S, Couchot, F, Coulais, A, Cressiot, C, Crill, B, Crook, M, De Bernardis, P, Delabrouille, J, Delouis, J, Desert, F, Dolag, K, Dole, H, Dore, O, Douspis, M, Dunkley, J, Efstathiou, G, Filliard, C, Forni, O, Fosalba, P, Ganga, K, Giard, M, Girard, D, Giraud-Heraud, Y, Gispert, R, Gorski, K, Gratton, S, Griffin, M, Guyot, G, Haissinski, J, Harrison, D, Helou, G, Henrot-Versille, S, Hernandez-Monteagudo, C, Hildebrandt, S, Hills, R, Hivon, E, Hobson, M, Holmes, W, Huffenberger, K, Jaffe, A, Jones, W, Kaplan, J, Kneissl, R, Knox, L, Kunz, M, Lagache, G, Lamarre, J, Lange, A, Lasenby, A, Lavabre, A, Lawrence, C, Le Jeune, M, Leroy, C, Lesgourgues, J, Macias-Perez, J, Mactavish, C, Maffei, B, Mandolesi, N, Mann, R, Marleau, F, Marshall, D, Masi, S, Matsumura, T, Mcauley, I, Mcgehee, P, Melin, J, Mercier, C, Mitra, S, Miville-Deschenes, M, Moneti, A, Montier, L, Mortlock, D, Murphy, A, Nati, F, Netterfield, C, Nørgaard-Nielsen, H, Norgaard-Nielsen, H, North, C, Noviello, F, Novikov, D, Osborne, S, Pajot, F, Patanchon, G, Peacocke, T, Pearson, T, Perdereau, O, Perotto, L, Piacentini, F, Piat, M, Plaszczynski, S, Pointecouteau, E, Ponthieu, N, Prezeau, G, Prunet, S, Puget, J, Reach, W, Remazeilles, M, Renault, C, Riazuelo, A, Ristorcelli, I, Rocha, G, Rosset, C, Roudier, G, Rowan-Robinson, M, Rusholme, B, Saha, R, Santos, D, Savini, G, Schaefer, B, Shellard, P, Spencer, L, Starck, J, Stolyarov, V, Stompor, R, Sudiwala, R, Sunyaev, R, Sutton, D, Sygnet, J, Tauber, J, Thum, C, Torre, J, Touze, F, Tristram, M, Van Leeuwen, F, Vibert, L, Vibert, D, Wade, L, Wandelt, B, White, S, Wiesemeyer, H, Woodcraft, A, Yurchenko, V, Yvon, D, Zacchei, A, Planck Hfi Core Team, P.A.R. Ade, N. Aghanim, R. Ansari, M. Arnaud, M. Ashdown, J. Aumont, A.J. Banday, M. Bartelmann, J.G. Bartlett, E. Battaner, K. Benabed, A. Benoit, J.P. Bernard, M. Bersanelli, J.J. Bock, J.R. Bond, J. Borrill, F.R. Bouchet, F. Boulanger, T. Bradshaw, M. Bucher, J.F. Cardoso, G. Castex, A. Catalano, A. Challinor, A. Chamballu, R.R. Chary, X. Chen, C. Chiang, S. Church, D.L. Clements, J.M. Colley, S. Colombi, F. Couchot, A. Coulais, C. Cressiot, B.P. Crill, M. Crook, Paolo De Bernardis, J. Delabrouille, J.M. Delouis, F.X. Desert, K. Dolag, H. Dole, O. Dore, M. Douspis, J. Dunkley, G. Efstathiou, C. Filliard, O. Forni, P. Fosalba, K. Ganga, M. Giard, D. Girard, Y. Giraud-Heraud, R. Gispert, K.M. Gorski, S. Gratton, M. Griffin, G. Guyot, J. Haissinski, D. Harrison, G. Helou, S. Henrot-Versille, C. Hernandez-Monteagudo, S.R. Hildebrandt, R. Hills, E. Hivon, M. Hobson, W.A. Holmes, K.M. Huffenberger, A.H. Jaffe, W.C. Jones, J. Kaplan, R. Kneissl, L. Knox, M. Kunz, G. Lagache, J.M. Lamarre, A.E. Lange, A. Lasenby, A. Lavabre, C.R. Lawrence, M. Le Jeune, C. Leroy, J. Lesgourgues, J.F. Macias-Perez, C.J. Mactavish, B. Maffei, N. Mandolesi, R. Mann, F. Marleau, D.J. Marshall, Silvia Masi, T. Matsumura, I. Mcauley, P. Mcgehee, J.B. Melin, C. Mercier, S. Mitra, M.A. Miville-Deschenes, A. Moneti, L. Montier, D. Mortlock, A. Murphy, Federico Nati, C.B. Netterfield, H.U. Nørgaard-Nielsen, H.U. Norgaard-Nielsen, C. North, F. Noviello, D. Novikov, S. Osborne, F. Pajot, G. Patanchon, T. Peacocke, T.J. Pearson, O. Perdereau, L. Perotto, Francesco Piacentini, M. Piat, S. Plaszczynski, E. Pointecouteau, N. Ponthieu, G. Prezeau, S. Prunet, J.L. Puget, W.T. Reach, M. Remazeilles, C. Renault, A. Riazuelo, I. Ristorcelli, G. Rocha, C. Rosset, G. Roudier, M. Rowan-Robinson, B. Rusholme, R. Saha, D. Santos, Giorgio Savini, B.M. Schaefer, P. Shellard, L. Spencer, J.L. Starck, V. Stolyarov, R. Stompor, R. Sudiwala, R. Sunyaev, D. Sutton, J.F. Sygnet, J.A. Tauber, C. Thum, J.P. Torre, F. Touze, M. Tristram, F. Van Leeuwen, L. Vibert, D. Vibert, L.A. Wade, B.D. Wandelt, S.D.M. White, H. Wiesemeyer, A. Woodcraft, V. Yurchenko, D. Yvon, A. Zacchei, Hfi Core Team, P, Ade, P, Aghanim, N, Ansari, R, Arnaud, M, Ashdown, M, Aumont, J, Banday, A, Bartelmann, M, Bartlett, J, Battaner, E, Benabed, K, Benoit, A, Bernard, J, Bersanelli, M, Bock, J, Bond, J, Borrill, J, Bouchet, F, Boulanger, F, Bradshaw, T, Bucher, M, Cardoso, J, Castex, G, Catalano, A, Challinor, A, Chamballu, A, Chary, R, Chen, X, Chiang, C, Church, S, Clements, D, Colley, J, Colombi, S, Couchot, F, Coulais, A, Cressiot, C, Crill, B, Crook, M, De Bernardis, P, Delabrouille, J, Delouis, J, Desert, F, Dolag, K, Dole, H, Dore, O, Douspis, M, Dunkley, J, Efstathiou, G, Filliard, C, Forni, O, Fosalba, P, Ganga, K, Giard, M, Girard, D, Giraud-Heraud, Y, Gispert, R, Gorski, K, Gratton, S, Griffin, M, Guyot, G, Haissinski, J, Harrison, D, Helou, G, Henrot-Versille, S, Hernandez-Monteagudo, C, Hildebrandt, S, Hills, R, Hivon, E, Hobson, M, Holmes, W, Huffenberger, K, Jaffe, A, Jones, W, Kaplan, J, Kneissl, R, Knox, L, Kunz, M, Lagache, G, Lamarre, J, Lange, A, Lasenby, A, Lavabre, A, Lawrence, C, Le Jeune, M, Leroy, C, Lesgourgues, J, Macias-Perez, J, Mactavish, C, Maffei, B, Mandolesi, N, Mann, R, Marleau, F, Marshall, D, Masi, S, Matsumura, T, Mcauley, I, Mcgehee, P, Melin, J, Mercier, C, Mitra, S, Miville-Deschenes, M, Moneti, A, Montier, L, Mortlock, D, Murphy, A, Nati, F, Netterfield, C, Nørgaard-Nielsen, H, Norgaard-Nielsen, H, North, C, Noviello, F, Novikov, D, Osborne, S, Pajot, F, Patanchon, G, Peacocke, T, Pearson, T, Perdereau, O, Perotto, L, Piacentini, F, Piat, M, Plaszczynski, S, Pointecouteau, E, Ponthieu, N, Prezeau, G, Prunet, S, Puget, J, Reach, W, Remazeilles, M, Renault, C, Riazuelo, A, Ristorcelli, I, Rocha, G, Rosset, C, Roudier, G, Rowan-Robinson, M, Rusholme, B, Saha, R, Santos, D, Savini, G, Schaefer, B, Shellard, P, Spencer, L, Starck, J, Stolyarov, V, Stompor, R, Sudiwala, R, Sunyaev, R, Sutton, D, Sygnet, J, Tauber, J, Thum, C, Torre, J, Touze, F, Tristram, M, Van Leeuwen, F, Vibert, L, Vibert, D, Wade, L, Wandelt, B, White, S, Wiesemeyer, H, Woodcraft, A, Yurchenko, V, Yvon, D, Zacchei, A, Planck Hfi Core Team, P.A.R. Ade, N. Aghanim, R. Ansari, M. Arnaud, M. Ashdown, J. Aumont, A.J. Banday, M. Bartelmann, J.G. Bartlett, E. Battaner, K. Benabed, A. Benoit, J.P. Bernard, M. Bersanelli, J.J. Bock, J.R. Bond, J. Borrill, F.R. Bouchet, F. Boulanger, T. Bradshaw, M. Bucher, J.F. Cardoso, G. Castex, A. Catalano, A. Challinor, A. Chamballu, R.R. Chary, X. Chen, C. Chiang, S. Church, D.L. Clements, J.M. Colley, S. Colombi, F. Couchot, A. Coulais, C. Cressiot, B.P. Crill, M. Crook, Paolo De Bernardis, J. Delabrouille, J.M. Delouis, F.X. Desert, K. Dolag, H. Dole, O. Dore, M. Douspis, J. Dunkley, G. Efstathiou, C. Filliard, O. Forni, P. Fosalba, K. Ganga, M. Giard, D. Girard, Y. Giraud-Heraud, R. Gispert, K.M. Gorski, S. Gratton, M. Griffin, G. Guyot, J. Haissinski, D. Harrison, G. Helou, S. Henrot-Versille, C. Hernandez-Monteagudo, S.R. Hildebrandt, R. Hills, E. Hivon, M. Hobson, W.A. Holmes, K.M. Huffenberger, A.H. Jaffe, W.C. Jones, J. Kaplan, R. Kneissl, L. Knox, M. Kunz, G. Lagache, J.M. Lamarre, A.E. Lange, A. Lasenby, A. Lavabre, C.R. Lawrence, M. Le Jeune, C. Leroy, J. Lesgourgues, J.F. Macias-Perez, C.J. Mactavish, B. Maffei, N. Mandolesi, R. Mann, F. Marleau, D.J. Marshall, Silvia Masi, T. Matsumura, I. Mcauley, P. Mcgehee, J.B. Melin, C. Mercier, S. Mitra, M.A. Miville-Deschenes, A. Moneti, L. Montier, D. Mortlock, A. Murphy, Federico Nati, C.B. Netterfield, H.U. Nørgaard-Nielsen, H.U. Norgaard-Nielsen, C. North, F. Noviello, D. Novikov, S. Osborne, F. Pajot, G. Patanchon, T. Peacocke, T.J. Pearson, O. Perdereau, L. Perotto, Francesco Piacentini, M. Piat, S. Plaszczynski, E. Pointecouteau, N. Ponthieu, G. Prezeau, S. Prunet, J.L. Puget, W.T. Reach, M. Remazeilles, C. Renault, A. Riazuelo, I. Ristorcelli, G. Rocha, C. Rosset, G. Roudier, M. Rowan-Robinson, B. Rusholme, R. Saha, D. Santos, Giorgio Savini, B.M. Schaefer, P. Shellard, L. Spencer, J.L. Starck, V. Stolyarov, R. Stompor, R. Sudiwala, R. Sunyaev, D. Sutton, J.F. Sygnet, J.A. Tauber, C. Thum, J.P. Torre, F. Touze, M. Tristram, F. Van Leeuwen, L. Vibert, D. Vibert, L.A. Wade, B.D. Wandelt, S.D.M. White, H. Wiesemeyer, A. Woodcraft, V. Yurchenko, D. Yvon, and A. Zacchei
Abstract: We describe the processing of the 336 billion raw data samples from the High Frequency Instrument (HFI) which we performed to produce six temperature maps from the first 295 days of Planck-HFI survey data. These maps provide an accurate rendition of the sky emission at 100, 143, 217, 353, 545 and 857GHz with an angular resolution ranging from 9.9 to 4.4'. The white noise level is around 1.5 mu K degree or less in the 3 main CMB channels (100-217 GHz). The photometric accuracy is better than 2% at frequencies between 100 and 353 GHz and around 7% at the two highest frequencies. The maps created by the HFI Data Processing Centre reach our goals in terms of sensitivity, resolution, and photometric accuracy. They are already sufficiently accurate and well-characterised to allow scientific analyses which are presented in an accompanying series of early papers. At this stage, HFI data appears to be of high quality and we expect that with further refinements of the data processing we should be able to achieve, or exceed, the science goals of the Planck project.
Published: 2011

32. Planck early results. IV. First assessment of the High Frequency Instrument in-flight performance

Author: Hfi Core Team, P, Ade, P, Aghanim, N, Ansari, R, Arnaud, M, Ashdown, M, Aumont, J, Banday, A, Bartelmann, M, Bartlett, J, Battaner, E, Benabed, K, Benoit, A, Bernard, J, Bersanelli, M, Bhatia, R, Bock, J, Bond, J, Borrill, J, Bouchet, F, Boulanger, F, Bradshaw, T, Breelle, E, Bucher, M, Camus, P, Cardoso, J, Catalano, A, Challinor, A, Chamballu, A, Charra, J, Charra, M, Chary, R, Chiang, C, Church, S, Clements, D, Colombi, S, Couchot, F, Coulais, A, Cressiot, C, Crill, B, Crook, M, De Bernardis, P, Delabrouille, J, Delouis, J, Desert, F, Dolag, K, Dole, H, Dore, O, Douspis, M, Efstathiou, G, Eng, P, Filliard, C, Forni, O, Fosalba, P, Fourmond, J, Ganga, K, Giard, M, Girard, D, Giraud-Heraud, Y, Gispert, R, Gorski, K, Gratton, S, Griffin, M, Guyot, G, Haissinski, J, Harrison, D, Helou, G, Henrot-Versille, S, Hernandez-Monteagudo, C, Hildebrandt, S, Hills, R, Hivon, E, Hobson, M, Holmes, W, Huffenberger, K, Jaffe, A, Jones, W, Kaplan, J, Kneissl, R, Knox, L, Lagache, G, Lamarre, J, Lami, P, Lange, A, Lasenby, A, Lavabre, A, Lawrence, C, Leriche, B, Leroy, C, Longval, Y, Macias-Perez, J, Maciaszek, T, Mactavish, C, Maffei, B, Mandolesi, N, Mann, R, Mansoux, B, Masi, S, Matsumura, T, Mcgehee, P, Melin, J, Mercier, C, Miville-Deschenes, M, Moneti, A, Montier, L, Mortlock, D, Murphy, A, Nati, F, Netterfield, C, Norgaard-Nielsen, H, Nørgaard-Nielsen, H, North, C, Noviello, F, Novikov, D, Osborne, S, Paine, C, Pajot, F, Patanchon, G, Peacocke, T, Pearson, T, Perdereau, O, Perotto, L, Piacentini, F, Piat, M, Plaszczynski, S, Pointecouteau, E, Pons, R, Ponthieu, N, Prezeau, G, Prunet, S, Puget, J, Reach, W, Renault, C, Ristorcelli, I, Rocha, G, Rosset, C, Roudier, G, Rowan-Robinson, M, Rusholme, B, Santos, D, Savini, G, Schaefer, B, Shellard, P, Spencer, L, Starck, J, Stassi, P, Stolyarov, V, Stompor, R, Sudiwala, R, Sunyaev, R, Sygnet, J, Tauber, J, Thum, C, Torre, J, Touze, F, Tristram, M, Van Leeuwen, F, Vibert, L, Vibert, D, Wade, L, Wandelt, B, White, S, Wiesemeyer, H, Woodcraft, A, Yurchenko, V, Yvon, D, Zacchei, A, Planck Hfi Core Team, P.A.R. Ade, N. Aghanim, R. Ansari, M. Arnaud, M. Ashdown, J. Aumont, A.J. Banday, M. Bartelmann, J.G. Bartlett, E. Battaner, K. Benabed, A. Benoit, J.P. Bernard, M. Bersanelli, R. Bhatia, J.J. Bock, J.R. Bond, J. Borrill, F.R. Bouchet, F. Boulanger, T. Bradshaw, E. Breelle, M. Bucher, P. Camus, J.F. Cardoso, A. Catalano, A. Challinor, A. Chamballu, J. Charra, M. Charra, R.R. Chary, C. Chiang, S. Church, D.L. Clements, S. Colombi, F. Couchot, A. Coulais, C. Cressiot, B.P. Crill, M. Crook, Paolo De Bernardis, J. Delabrouille, J.M. Delouis, F.X. Desert, K. Dolag, H. Dole, O. Dore, M. Douspis, G. Efstathiou, P. Eng, C. Filliard, O. Forni, P. Fosalba, J.J. Fourmond, K. Ganga, M. Giard, D. Girard, Y. Giraud-Heraud, R. Gispert, K.M. Gorski, S. Gratton, M. Griffin, G. Guyot, J. Haissinski, D. Harrison, G. Helou, S. Henrot-Versille, C. Hernandez-Monteagudo, S.R. Hildebrandt, R. Hills, E. Hivon, M. Hobson, W.A. Holmes, K.M. Huffenberger, A.H. Jaffe, W.C. Jones, J. Kaplan, R. Kneissl, L. Knox, G. Lagache, J.M. Lamarre, P. Lami, A.E. Lange, A. Lasenby, A. Lavabre, C.R. Lawrence, B. Leriche, C. Leroy, Y. Longval, J.F. Macias-Perez, T. Maciaszek, C.J. Mactavish, B. Maffei, N. Mandolesi, R. Mann, B. Mansoux, Silvia Masi, T. Matsumura, P. Mcgehee, J.B. Melin, C. Mercier, M.A. Miville-Deschenes, A. Moneti, L. Montier, D. Mortlock, A. Murphy, Federico Nati, C.B. Netterfield, H.U. Norgaard-Nielsen, H.U. Nørgaard-Nielsen, C. North, F. Noviello, D. Novikov, S. Osborne, C. Paine, F. Pajot, G. Patanchon, T. Peacocke, T.J. Pearson, O. Perdereau, L. Perotto, Francesco Piacentini, M. Piat, S. Plaszczynski, E. Pointecouteau, R. Pons, N. Ponthieu, G. Prezeau, S. Prunet, J.L. Puget, W.T. Reach, C. Renault, I. Ristorcelli, G. Rocha, C. Rosset, G. Roudier, M. Rowan-Robinson, B. Rusholme, D. Santos, Giorgio Savini, B.M. Schaefer, P. Shellard, L. Spencer, J.L. Starck, P. Stassi, V. Stolyarov, R. Stompor, R. Sudiwala, R. Sunyaev, J.F. Sygnet, J.A. Tauber, C. Thum, J.P. Torre, F. Touze, M. Tristram, F. Van Leeuwen, L. Vibert, D. Vibert, L.A. Wade, B.D. Wandelt, S.D.M. White, H. Wiesemeyer, A. Woodcraft, V. Yurchenko, D. Yvon, A. Zacchei, Hfi Core Team, P, Ade, P, Aghanim, N, Ansari, R, Arnaud, M, Ashdown, M, Aumont, J, Banday, A, Bartelmann, M, Bartlett, J, Battaner, E, Benabed, K, Benoit, A, Bernard, J, Bersanelli, M, Bhatia, R, Bock, J, Bond, J, Borrill, J, Bouchet, F, Boulanger, F, Bradshaw, T, Breelle, E, Bucher, M, Camus, P, Cardoso, J, Catalano, A, Challinor, A, Chamballu, A, Charra, J, Charra, M, Chary, R, Chiang, C, Church, S, Clements, D, Colombi, S, Couchot, F, Coulais, A, Cressiot, C, Crill, B, Crook, M, De Bernardis, P, Delabrouille, J, Delouis, J, Desert, F, Dolag, K, Dole, H, Dore, O, Douspis, M, Efstathiou, G, Eng, P, Filliard, C, Forni, O, Fosalba, P, Fourmond, J, Ganga, K, Giard, M, Girard, D, Giraud-Heraud, Y, Gispert, R, Gorski, K, Gratton, S, Griffin, M, Guyot, G, Haissinski, J, Harrison, D, Helou, G, Henrot-Versille, S, Hernandez-Monteagudo, C, Hildebrandt, S, Hills, R, Hivon, E, Hobson, M, Holmes, W, Huffenberger, K, Jaffe, A, Jones, W, Kaplan, J, Kneissl, R, Knox, L, Lagache, G, Lamarre, J, Lami, P, Lange, A, Lasenby, A, Lavabre, A, Lawrence, C, Leriche, B, Leroy, C, Longval, Y, Macias-Perez, J, Maciaszek, T, Mactavish, C, Maffei, B, Mandolesi, N, Mann, R, Mansoux, B, Masi, S, Matsumura, T, Mcgehee, P, Melin, J, Mercier, C, Miville-Deschenes, M, Moneti, A, Montier, L, Mortlock, D, Murphy, A, Nati, F, Netterfield, C, Norgaard-Nielsen, H, Nørgaard-Nielsen, H, North, C, Noviello, F, Novikov, D, Osborne, S, Paine, C, Pajot, F, Patanchon, G, Peacocke, T, Pearson, T, Perdereau, O, Perotto, L, Piacentini, F, Piat, M, Plaszczynski, S, Pointecouteau, E, Pons, R, Ponthieu, N, Prezeau, G, Prunet, S, Puget, J, Reach, W, Renault, C, Ristorcelli, I, Rocha, G, Rosset, C, Roudier, G, Rowan-Robinson, M, Rusholme, B, Santos, D, Savini, G, Schaefer, B, Shellard, P, Spencer, L, Starck, J, Stassi, P, Stolyarov, V, Stompor, R, Sudiwala, R, Sunyaev, R, Sygnet, J, Tauber, J, Thum, C, Torre, J, Touze, F, Tristram, M, Van Leeuwen, F, Vibert, L, Vibert, D, Wade, L, Wandelt, B, White, S, Wiesemeyer, H, Woodcraft, A, Yurchenko, V, Yvon, D, Zacchei, A, Planck Hfi Core Team, P.A.R. Ade, N. Aghanim, R. Ansari, M. Arnaud, M. Ashdown, J. Aumont, A.J. Banday, M. Bartelmann, J.G. Bartlett, E. Battaner, K. Benabed, A. Benoit, J.P. Bernard, M. Bersanelli, R. Bhatia, J.J. Bock, J.R. Bond, J. Borrill, F.R. Bouchet, F. Boulanger, T. Bradshaw, E. Breelle, M. Bucher, P. Camus, J.F. Cardoso, A. Catalano, A. Challinor, A. Chamballu, J. Charra, M. Charra, R.R. Chary, C. Chiang, S. Church, D.L. Clements, S. Colombi, F. Couchot, A. Coulais, C. Cressiot, B.P. Crill, M. Crook, Paolo De Bernardis, J. Delabrouille, J.M. Delouis, F.X. Desert, K. Dolag, H. Dole, O. Dore, M. Douspis, G. Efstathiou, P. Eng, C. Filliard, O. Forni, P. Fosalba, J.J. Fourmond, K. Ganga, M. Giard, D. Girard, Y. Giraud-Heraud, R. Gispert, K.M. Gorski, S. Gratton, M. Griffin, G. Guyot, J. Haissinski, D. Harrison, G. Helou, S. Henrot-Versille, C. Hernandez-Monteagudo, S.R. Hildebrandt, R. Hills, E. Hivon, M. Hobson, W.A. Holmes, K.M. Huffenberger, A.H. Jaffe, W.C. Jones, J. Kaplan, R. Kneissl, L. Knox, G. Lagache, J.M. Lamarre, P. Lami, A.E. Lange, A. Lasenby, A. Lavabre, C.R. Lawrence, B. Leriche, C. Leroy, Y. Longval, J.F. Macias-Perez, T. Maciaszek, C.J. Mactavish, B. Maffei, N. Mandolesi, R. Mann, B. Mansoux, Silvia Masi, T. Matsumura, P. Mcgehee, J.B. Melin, C. Mercier, M.A. Miville-Deschenes, A. Moneti, L. Montier, D. Mortlock, A. Murphy, Federico Nati, C.B. Netterfield, H.U. Norgaard-Nielsen, H.U. Nørgaard-Nielsen, C. North, F. Noviello, D. Novikov, S. Osborne, C. Paine, F. Pajot, G. Patanchon, T. Peacocke, T.J. Pearson, O. Perdereau, L. Perotto, Francesco Piacentini, M. Piat, S. Plaszczynski, E. Pointecouteau, R. Pons, N. Ponthieu, G. Prezeau, S. Prunet, J.L. Puget, W.T. Reach, C. Renault, I. Ristorcelli, G. Rocha, C. Rosset, G. Roudier, M. Rowan-Robinson, B. Rusholme, D. Santos, Giorgio Savini, B.M. Schaefer, P. Shellard, L. Spencer, J.L. Starck, P. Stassi, V. Stolyarov, R. Stompor, R. Sudiwala, R. Sunyaev, J.F. Sygnet, J.A. Tauber, C. Thum, J.P. Torre, F. Touze, M. Tristram, F. Van Leeuwen, L. Vibert, D. Vibert, L.A. Wade, B.D. Wandelt, S.D.M. White, H. Wiesemeyer, A. Woodcraft, V. Yurchenko, D. Yvon, and A. Zacchei
Abstract: The Planck High Frequency Instrument (HFI) is designed to measure the temperature and polarization anisotropies of the cosmic microwave background and Galactic foregrounds in six ~30% bands centered at 100, 143, 217, 353, 545, and 857 GHz at an angular resolution of 10′ (100 GHz), 7′ (143 GHz), and 5′ (217 GHz and higher). HFI has been operating flawlessly since launch on 14 May 2009, with the bolometers reaching 100 mK the first week of July. The settings of the readout electronics, including bolometer bias currents, that optimize HFI's noise performance on orbit are nearly the same as the ones chosen during ground testing. Observations of Mars, Jupiter, and Saturn have confirmed that the optical beams and the time responses of the detection chains are in good agreement with the predictions of physical optics modeling and pre-launch measurements. The Detectors suffer from a high flux of cosmic rays due to historically low levels of solar activity. As a result of the redundancy of Planck's observation strategy, theremoval of a few percent of data contaminated by glitches does not significantly affect the instrumental sensitivity. The cosmic ray flux represents a significant and variable heat load on the sub-Kelvin stage. Temporal variation and the inhomogeneous distribution of the flux results in thermal fluctuations that are a probable source of low frequency noise. The removal of systematic effects in the time ordered data provides a signal with an average noise equivalent power that is 70% of the goal in the 0.6-2.5 Hz range. This is slightly higher than was achieved during the pre-launch characterization but better than predicted in the early phases of the project. The improvement over the goal is a result of the low level of instrumental background loading achieved by the optical and thermal design of the HFI.
Published: 2011

33. Heat waves observed in 2007 in Athens, Greece: Synoptic conditions, bioclimatological assessment, air quality levels and health effects

Author: Theoharatos, G. Pantavou, K. Mavrakis, A. Spanou, A. Katavoutas, G. Efstathiou, P. Mpekas, P. Asimakopoulos, D. and Theoharatos, G. Pantavou, K. Mavrakis, A. Spanou, A. Katavoutas, G. Efstathiou, P. Mpekas, P. Asimakopoulos, D.
Abstract: Heat waves are considered to be increasing in frequency and intensity whereas they comprise a significant weather-related cause of deaths in several countries. Two heat waves occurred in Greece in summer 2007. These severe heat waves are assessed by analyzing the prevailing synoptic conditions, evaluating human thermal discomfort, through the Heat Load Index (HL), as well as investigating its interrelation of air pollutant concentrations, and the daily air quality stress index (AQSI), in the greater region of Athens (Attica), Greece. Furthermore, the relation of HL values and the number of heatstroke and heat exhaustion events recorded in public hospitals operating within the Greek National Health System is examined. Data included radiosonde measurements from the Athens airport station (LGAT), NCEP/NCAR reanalysis data in order to obtain the position of the Subtropical Jet Stream (STJ), GDAS meteorological data for back-trajectory calculation, 10-min meteorological data from 10 Hydro-Meteorological stations and mean hourly values of nitric dioxide (NO2), sulphur dioxide (SO2) and ozone (O3) concentrations, measured at 7 different sites, for the last 10-day period of June and July 2007. Spearman's rank correlation test was used to observe any possible correlation between HL values and air pollutant concentrations, and AQSI values. The results demonstrated different synoptic characteristics for the heat waves of June and July. In the heat wave of June, higher ambient temperatures were recorded and greater HL values were calculated. Extreme discomfort conditions were identified in both heat waves during both day-time and night-time hours. The air pollution analysis showed poor air quality conditions for the heat wave of July, while a significant correlation was found between HL values and average hourly concentrations of O3, NO2 and SO2. The number of heat-affected patients reported during the June heat wave was larger. © 2009 Elsevier Inc. All rights reserved.
Published: 2010

34. Spherical Harmonic Analysis of the PSCz Galaxy Catalogue: Redshift distortions and the real-space power spectrum

Author: H. Tadros, W. E. Ballinger, A. N. Taylor, A. F. Heavens, G. Efstathiou, W. Saunders, C. S. Frenk, O. Keeble, R. McMahon, S. J. Maddox, S. Oliver, M. Rowan-Robinson, W. J. Sutherland, and S. D. M. White
Subjects: Physics, Astrophysics (astro-ph), Spherical harmonics, Spectral density, FOS: Physical sciences, Astronomy and Astrophysics, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Redshift survey, Lambda, Galaxy, Redshift, Shape parameter, Amplitude, Space and Planetary Science, Astrophysics::Galaxy Astrophysics
Abstract: We apply the formalism of spherical harmonic decomposition to the galaxy density field of the IRAS PSCz redshift survey. The PSCz redshift survey has almost all-sky coverage and includes IRAS galaxies to a flux limit of 0.6 Jy. Using maximum likelihood methods to examine (to first order) the distortion of the galaxy pattern due to redshift coordinates, we have measured the parameter \beta= \Omega^{0.6}/b. We also simultaneously measure (a) the undistorted amplitude of perturbations in the galaxy distribution when a parameterised power spectrum is assumed, or (b) the shape and amplitude of the real-space power spectrum if the band-power in a set of passbands is measured in a step- wise fashion. These methods are extensively tested on a series of CDM, \Lambda CDM and MDM simulations and are found to be unbiased. We obtain consistent results for the subset of the PSCz catalogue with flux above 0.75 Jy but inclusion of galaxies to the formal flux limit of the catalogue gives variations which are larger than our internal errors. For the 0.75 Jy catalogue we find, in the case of a parameterised power spectrum, \beta=0.58\pm0.26 and the amplitude of the real space power measured at wavenumber k=0.1 h/Mpc is \Delta_{0.1}=0.42 \pm 0.03. Freeing the shape of the power spectrum we find that \beta=0.47\pm 0.16 (conditional error), and \Delta_{0.1}=0.47 \pm 0.03. The shape of the real-space power spectrum is consistent with a \Gamma= 0.2 CDM-like shape parameter, but does not strongly rule out a number of other models. Finally by combining our estimate of the amplitude of galaxy clustering and the distortion parameter we find the amplitude of mass fluctuations on a scale k=0.1 \hmpc is \Delta_\rho = 0.24 \Omega_0^{-0.6}$, with an uncertainty of 50%., Comment: 24 pages (Latex), 12 postscript figures included, accepted for publication in MNRAS
Published: 1999

35. Treatment of Waldenstrom's macroglobulinemia with the combination of fludarabine and cyclophosphamide

Author: Dimopoulos, MA Hamilos, G Efstathiou, E Siapkaras, I and Matsouka, C Gika, D Grigoraki, V Papadimitriou, C and Mitsibounas, D Anagnostopoulos, N and Dimopoulos, MA Hamilos, G Efstathiou, E Siapkaras, I and Matsouka, C Gika, D Grigoraki, V Papadimitriou, C and Mitsibounas, D Anagnostopoulos, N
Abstract: Fludarabine is an active agent for the treatment of Waldenstrom’s macroglobulinemia (WM) and its combination with cyclophosphamide has been effective in many patients with low-grade lymphoma and chronic lymphocytic leukemia. Based on these data, we administered the combination of fludarabine (25 mg/m(2) IV day 1-3) and cyclophosphamide (250 mg/m(2) IV day 1-3,) to 11 patients with WM. Most patients had features indicating poor prognosis including median age of 73 years (range 60-84 years), hemoglobin, 100 g/l in 73%, B-2-microglobulin. 3 mg/l in 64%, symptomatic hyperviscosity in 55% of patients. Only 2 patients were previously untreated, 7 were primary refractory and 2 were relapsing on treatment. The fludarabine-cyclophosphamide combination (FC) was administered every 4 weeks for a total of four courses. Partial response, defined by at least 50% reduction of serum monoclonal protein and of tumor infiltrate at all involved sites was documented in 6 patients (55%) (The median time to response was 4 months). Responding patients demonstrated resolution of disease-related symptoms and correction of anemia. Median time to progression for all patients was 24 months. With a mean follow-up of 28 months, two of six responding patients have progressed so far. The probability of 2-year survival is 70%. This regimen was relatively well tolerated. Complications included neutropenia grade 3 or 4 in 3 patients and thrombocytopenia grade 3 or 4 in 2 patients. There were five infectious episodes including two episodes of neutropenic fever. We conclude that the FC combination appears to be active in patients with WM most of whom were resistant to treatment and had poor prognostic factors. The addition of rituximab to FC requires further investigation.
Published: 2003

36. Planckearly results. I. ThePlanckmission

Author: P. A. R. Ade[82], N. Aghanim[54], M. Arnaud[68], M. Ashdown[66-4], J. Aumont[54], C. Baccigalupi[80], M. Baker[37], A. Balbi[31], A. J. Banday[89-9-73], R. B. Barreiro[62], J. G. Bartlett[3-64], E. Battaner[91], K. Benabed[55], K. Bennett[38], A. Benoît[53], J.-P. Bernard[89-9], M. Bersanelli[28-46], R. Bhatia[5], J. J. Bock[64-10], A. Bonaldi[42], J. R. Bond[6], J. Borrill[72-84], F. R. Bouchet[55], T. Bradshaw[79], M. Bremer[38], M. Bucher[3], C. Burigana[45], R. C. Butler[45], P. Cabella[31], C. M. Cantalupo[72], B. Cappellini[46], J.-F. Cardoso[69-3-55], R. Carr[35], M. Casale[35], A. Catalano[3-67], L. Cayón[21], A. Challinor[59-66-12], A. Chamballu[51], J. Charra[54], R.-R. Chary[52], L.-Y. Chiang[58], C. Chiang[20], P. R. Christensen[76-32], D. L. Clements[51], S. Colombi[55], F. Couchot[71], A. Coulais[67], B. P. Crill[64-77], G. Crone[38], M. Crook[79], F. Cuttaia[45], L. Danese[80], O. D'Arcangelo[63], R. D. Davies[65], R. J. Davis[65], P. de Bernardis[27], J. de Bruin[37], G. de Gasperis[31], A. de Rosa[45], G. de Zotti[42-80], J. Delabrouille[3], J.-M. Delouis[55], F.-X. Désert[49], J. Dick[80], C. Dickinson[65], K. Dolag[73], H. Dole[54], S. Donzelli[46-60], O. Doré[64-10], U. Dörl[73], M. Douspis[54], X. Dupac[36], G. Efstathiou[59], T. A. Enßlin[73], H. K. Eriksen[60], F. Finelli[45], S. Foley[37], O. Forni[89-9], P. Fosalba[56], M. Frailis[44], E. Franceschi[45], M. Freschi[36], T. C. Gaier[64], S. Galeotta[44], J. Gallegos[36], B. Gandolfo[37], K. Ganga[3-52], M. Giard[89-9], G. Giardino[38], G. Gienger[37], Y. Giraud-Héraud[3], J. González[35], J. González-Nuevo[80], K. M. Górski[64, 93], S. Gratton[66, 59], A. Gregorio[29], A. Gruppuso[45], G. Guyot[48], J. Haissinski[71], F. K. Hansen[60], D. Harrison[59-66], G. Helou[10], S. Henrot-Versillé[71], C. Hernández-Monteagudo[73], D. Herranz[62], S. R. Hildebrandt[10-70-61], E. Hivon[55], M. Hobson[4], W. A. Holmes[64], A. Hornstrup[14], W. Hovest[73], R. J. Hoyland[61], K. M. Huffenberger[92], A. H. Jaffe[51], T. Jagemann[36], W. C. Jones[20], J. J. Juillet[87], M. Juvela[19], P. Kangaslahti[64], E. Keihänen[19], R. Keskitalo[64-19], T. S. Kisner[72], R. Kneissl[34-5], L. Knox[23], M. Krassenburg[38], H. Kurki-Suonio[19-40], G. Lagache[54], A. Lähteenmäki[1-40], J.-M. Lamarre[67], A. E. Lange[52], A. Lasenby[4-66], R. J. Laureijs[38], C. R. Lawrence[64], S. Leach[80], J. P. Leahy[65], R. Leonardi[36-38-24], C. Leroy[54-89-9], P. B. Lilje[60-11], M. Linden-Vørnle[14], M. López-Caniego[62], S. Lowe[65], P. M. Lubin[24], J. F. Macías-Pérez[70], T. Maciaszek[7], C. J. MacTavish[66], B. Maffei[65], D. Maino[28-46], N. Mandolesi[45], R. Mann[81], M. Maris[44], E. Martínez-González[62], S. Masi[27], M. Massardi[42], S. Matarrese[26], F. Matthai[73], P. Mazzotta[31], A. McDonald[37], P. McGehee[52], P. R. Meinhold[24], A. Melchiorri[27], J.-B. Melin[13], L. Mendes[36], A. Mennella[28-44], C. Mevi[37], R. Miniscalco[37], S. Mitra[64], M.-A. Miville-Deschênes[54-6], A. Moneti[55], L. Montier[89-9], G. Morgante[45], N. Morisset[50], D. Mortlock[51], D. Munshi[82-59], A. Murphy[75], P. Naselsky[76-32], P. Natoli[30-2-45], C. B. Netterfield[16], H. U. Nørgaard-Nielsen[14], F. Noviello[54], D. Novikov[51], I. Novikov[76], I. J. O'Dwyer[64], I. Ortiz[35], S. Osborne[86], P. Osuna[35], C. A. Oxborrow[14], F. Pajot[54], R. Paladini[85, 10], B. Partridge[39], F. Pasian[44], T. Passvogel[38], G. Patanchon[3], D. Pearson[64], T. J. Pearson[10-52], O. Perdereau[71], L. Perotto[70], F. Perrotta[80], F. Piacentini[27], M. Piat[3], E. Pierpaoli[18], S. Plaszczynski[71], P. Platania[63], E. Pointecouteau[89-9], G. Polenta[2-43], N. Ponthieu[54], L. Popa[57], T. Poutanen[40-19-1], G. Prézeau[10-64], S. Prunet[55], J.-L. Puget[54], J. P. Rachen[73], W. T. Reach[90], R. Rebolo[61-33], M. Reinecke[73], J.-M. Reix[87], C. Renault[70], S. Ricciardi[45], T. Riller[73], I. Ristorcelli[89-9], G. Rocha[64-10], C. Rosset[3], M. Rowan-Robinson[51], J. A. Rubiño-Martín[61-33], B. Rusholme[52], E. Salerno[8], M. Sandri[45], D. Santos[70], G. Savini[78], B. M. Schaefer[88], D. Scott[17], M. D. Seiffert[64], P. Shellard[12], A. Simonetto[63], G. F. Smoot[22-72-3], C. Sozzi[63], J.-L. Starck[68-13], J. Sternberg[38], F. Stivoli[47], V. Stolyarov[4], R. Stompor[3], L. Stringhetti[45], R. Sudiwala[82], R. Sunyaev[73-83], J.-F. Sygnet[55], D. Tapiador[35], J. A. Tauber[38], D. Tavagnacco[44], D. Taylor[35], L. Terenzi[45], D. Texier[35], L. Toffolatti[15], M. Tomasi[28-46], J.-P. Torre[54], M. Tristram[71], J. Tuovinen[74], M. Türler[50], M. Tuttlebee[37], G. Umana[41], L. Valenziano[45], J. Valiviita[60], J. Varis[74], L. Vibert[54], P. Vielva[62], F. Villa[45], N. Vittorio[31], L. A. Wade[64], B. D. Wandelt[55-25], C. Watson[37], S. D. M. White[73], M. White[22], A. Wilkinson[65], D. Yvon[13], A. Zacchei[44], A. Zonca[24], Plank Collaboration, Universidad de Cantabria, Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), APC - Cosmologie, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Institut d'Astrophysique de Paris (IAP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Hélium : du fondamental aux applications (NEEL - HELFA), Institut Néel (NEEL), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS), Laboratoire Traitement et Communication de l'Information (LTCI), Télécom ParisTech-Institut Mines-Télécom [Paris] (IMT)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Centre National de la Recherche Scientifique (CNRS), Laboratoire de l'Accélérateur Linéaire (LAL), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), APC - Gravitation (APC-Gravitation), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Max-Planck-Institut für Gravitationsphysik ( Albert-Einstein-Institut ) (AEI), Max-Planck-Gesellschaft-Max-Planck-Gesellschaft, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Centre National d'Études Spatiales [Toulouse] (CNES), Département de Physique des Particules (ex SPP) (DPhP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Laboratoire de Recherche en Informatique (LRI), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), PLANCK, Ade, P. A. R., Aghanim, N., Arnaud, M., Ashdown, M., Aumont, J., Baccigalupi, C., Baker, M., Balbi, A., Banday, A. J., Barreiro, R. B., Bartlett, J. G., Battaner, E., Benabed, K., Bennett, K., Benoît, A., Bernard, J. P., Bersanelli, M., Bhatia, R., Bock, J. J., Bonaldi, A., Bond, J. R., Borrill, J., Bouchet, F. R., Bradshaw, T., Bremer, M., Bucher, M., Burigana, C., Butler, R. C., Cabella, P., Cantalupo, C. M., Cappellini, B., Cardoso, J. F., Carr, R., Casale, M., Catalano, A., Cayón, L., Challinor, A., Chamballu, A., Charra, J., Chary, R. R., Chiang, L. Y, Chiang, C., Christensen, P. R., Clements, D. L., Colombi, S., Couchot, F., Coulais, A., Crill, B. P., Crone, G., Crook, M., Cuttaia, F., Danese, L., D'Arcangelo, O., Davies, R. D., Davis, R. J., de Bernardis, P., de Bruin, J., de Gasperis, G., de Rosa, A., de Zotti, G., Delabrouille, J., Delouis, J. M., Désert, F. X., Dick, J., Dickinson, C., Dolag, K., Dole, H., Donzelli, S., Doré, O., Dörl, U., Douspis, M., Dupac, X., Efstathiou, G., Enßlin, T. A., Eriksen, H. K., Finelli, F., Foley, S., Forni, O., Fosalba, P., Frailis, M., Franceschi, E., Freschi, M., Gaier, T. C., Galeotta, S., Gallegos, J., Gandolfo, B., Ganga, K., Giard, M., Giardino, G., Giraud Héraud, Y., González, J., González Nuevo, J., Górski, K. M., Gratton, S., Gregorio, Anna, Gruppuso, A., Guyot, G., Haissinski, J., Hansen, F. K., Harrison, D., Helou, G., Henrot Versillé, S., Hernández Monteagudo, C., Herranz, D., Hildebrandt, S. R., Hivon, E., Hobson, M., Holmes, W. A., Hornstrup, A., Hovest, W., Hoyland, R. J., Huffenberger, K. M., Jaffe, A. H., Jagemann, T., Jones, W. C., Juillet, J. J., Juvela, M., Kangaslahti, P., Keihänen, E., Keskitalo, R., Kisner, T. S., Kneissl, R., Knox, L., Krassenburg, M., Kurki Suonio, H., Lagache, G., Lähteenmäki, A., Lamarre, J. M., Lange, A. E., Lasenby, A., Laureijs, R. J., Lawrence, C. R., Leach, S., Leahy, J. P., Leonardi, R., Leroy, C., Lilje, P. B., Linden Vørnle, M., López Caniego, M., Lowe, S., Lubin, P. M., Macías Pérez, J. F., Maciaszek, T., Mactavish, C. J., Maffei, B., Maino, D., Mandolesi, N., Mann, R., Maris, M., Martínez González, E., Masi, S., Massardi, M., Matarrese, S., Matthai, F., Mazzotta, P., Mcdonald, A., Mcgehee, P., Meinhold, P. R., Melchiorri, A., Melin, J. B., Mendes, L., Mennella, A., Mevi, C., Miniscalco, R., Mitra, S., Miville Deschênes, M. A., Moneti, A., Montier, L., Morgante, G., Morisset, N., Mortlock, D., Munshi, D., Murphy, A., Naselsky, P., Natoli, P., Netterfield, C. B., Nørgaard Nielsen, H. U., Noviello, F., Novikov, D., Novikov, I., O'Dwyer, I. J., Ortiz, I., Osborne, S., Osuna, P., Oxborrow, C. A., Pajot, F., Paladini, R., Partridge, B., Pasian, F., Passvogel, T., Patanchon, G., Pearson, D., Pearson, T. J., Perdereau, O., Perotto, L., Perrotta, F., Piacentini, F., Piat, M., Pierpaoli, E., Plaszczynski, S., Platania, P., Pointecouteau, E., Polenta, G., Ponthieu, N., Popa, L., Poutanen, T., Prézeau, G., Prunet, S., Puget, J. L., Rachen, J. P., Reach, W. T., Rebolo, R., Reinecke, M., Reix, J. M., Renault, C., Ricciardi, S., Riller, T., Ristorcelli, I., Rocha, G., Rosset, C., Rowan Robinson, M., Rubiño Martín, J. A., Rusholme, B., Salerno, E., Sandri, M., Santos, D., Savini, G., Schaefer, B. M., Scott, D., Seiffert, M. D., Shellard, P., Simonetto, A., Smoot, G. F., Sozzi, C., Starck, J. L., Sternberg, J., Stivoli, F., Stolyarov, V., Stompor, R., Stringhetti, L., Sudiwala, R., Sunyaev, R., Sygnet, J. F., Tapiador, D., Tauber, J. A., Tavagnacco, Daniele, Taylor, D., Terenzi, L., Texier, D., Toffolatti, L., Tomasi, M., Torre, J. P., Tristram, M., Tuovinen, J., Türler, M., Umana, G., Valenziano, L., Valiviita, J., Varis, J., Vibert, L., Vielva, P., Villa, F., Vittorio, N., Wade, L. A., Wandelt, B. D., Watson, C., White, S. D. M., White, M., Wilkinson, A., Yvon, D., Zacchei, A., Zonca, A., Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Physique Corpusculaire et Cosmologie - Collège de France (PCC), Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Collège de France (CdF)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-AstroParticule et Cosmologie (APC (UMR_7164)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7), HELFA - Hélium : du fondamental aux applications, Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), École normale supérieure - Paris (ENS Paris)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université de Cergy Pontoise (UCP), PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Max-Planck-Institut für Gravitationsphysik ( Albert-Einstein-Institut ) (AEI), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Département de Physique des Particules (ex SPP) (DPP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Hélium : du fondamental aux applications (HELFA), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF), École normale supérieure - Paris (ENS Paris), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Max-Planck-Institut für Gravitationsphysik ( Albert-Einstein-Institut ) (AEI), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), CentraleSupélec-Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Department of Physics, and Helsinki Institute of Physics
Subjects: Experimental Physics, [SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], Computer science, Surveys, Cosmic background radiation, 7. Clean energy, 01 natural sciences, CMB physics, Space vehicles: instruments, Instrumentation: detectors, observations [Cosmology], Instrumentation, 010303 astronomy & astrophysics, detectors [Instrumentation], QB, detectors, media_common, Planck ESA mission, Conjunction (astronomy), Cosmology: observations, Astrophysics::Instrumentation and Methods for Astrophysics, Cosmology, observations, Early results, cosmic backround radiation, instruments, symbols, [SDU.ASTR.GA]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA], cosmology: observations, cosmic background radiation, surveys, space vehicles: instruments, instrumentation: detectors, catalogs, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics, space vehicles, cosmology, instrumentation, Cosmology and Nongalactic Astrophysics (astro-ph.CO), [PHYS.ASTR.IM]Physics [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], media_common.quotation_subject, education, FOS: Physical sciences, Catalogs, Space vehicles, instruments [Space vehicles], [PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO], symbols.namesake, Settore FIS/05 - Astronomia e Astrofisica, 0103 physical sciences, Planck, Early release, Instrumentation and Methods for Astrophysics (astro-ph.IM), 010308 nuclear & particles physics, Payload, Astronomy, Astronomy and Astrophysics, 115 Astronomy, Space science, Catalogues, Astrophysics - Astrophysics of Galaxies, [SDU.ASTR.IM]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Instrumentation and Methods for Astrophysic [astro-ph.IM], [PHYS.ASTR.GA]Physics [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA], Space and Planetary Science, Sky, Astrophysics of Galaxies (astro-ph.GA), Satellite
Abstract: 16 páginas, 14 figuras, 3 tablas.-- Planck Collaboration: et al., The European Space Agency’s Planck satellite was launched on 14 May 2009, and has been surveying the sky stably and continuously since 13 August 2009. Its performance is well in line with expectations, and it will continue to gather scientific data until the end of its cryogenic lifetime. We give an overview of the history of Planck in its first year of operations, and describe some of the key performance aspects of the satellite. This paper is part of a package submitted in conjunction with Planck’s Early Release Compact Source Catalogue, the first data product based on Planck to be released publicly. The package describes the scientific performance of the Planck payload, and presents results on a variety of astrophysical topics related to the sources included in the Catalogue, as well as selected topics on diffuse emission., The Planck Collaboration acknowledges the support of: ESA; CNES and CNRS/INSU-IN2P3-INP (France); ASI, CNR, and INAF (Italy); NASA and DoE (USA); STFC and UKSA (UK); CSIC, MICINN and JA (Spain); Tekes, AoF and CSC (Finland); DLR and MPG (Germany); CSA (Canada); DTU Space (Denmark); SER/SSO (Switzerland); RCN (Norway); SFI (Ireland); FCT/MCTES (Portugal); and DEISA (EU).
Published: 2011
Full Text: View/download PDF

37. Microwave Background Anisotropies and Large Scale Structure in the Universe

Author: G. Efstathiou
Subjects: Physics, Structure formation, Cold dark matter, Mass distribution, Cosmic microwave background, Peculiar velocity, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Fluctuation spectrum, Galaxy, Galaxy cluster
Abstract: Recent observations show that the Universe contains more structure on scales ≳ 10h-1Mpc* than expected in the standard cold dark matter (CDM) theory of structure formation. This may indicate that the initial fluctuations were not scale-invariant. I investigate how this would affect microwave background anisotropics if the Universe is spatially flat with Ω = 1, as seems most natural if the Universe went through an inflationary phase. If we are allowed arbitrary freedom in choosing the shape of the initial fluctuation spectrum, then it is possible to construct models which can account for observed structure in the galaxy distribution but which result in small (ΔT/T ≲ 10-6) anisotropics in the microwave background radiation on angular scales ≳ 5°. However, it is very difficult to avoid producing temperature fluctuations of order 10-5 on angular scales of ~ 1°, even if the Universe were reionised. If the extra large-scale power detected in galaxy surveys really reflects clustering in the mass distribution, then experiments at θ ~ 1° should soon see fluctuations in the microwave background.
Published: 1991
Full Text: View/download PDF

38. Galaxy Mergers: Lessons from Cosmological N-Body Simulations

Author: G. Efstathiou
Subjects: Physics, Cold dark matter, De Sitter universe, Dwarf galaxy problem, Elliptical galaxy, Galaxy formation and evolution, Astronomy, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Galaxy merger, Astrophysics::Galaxy Astrophysics, Galaxy rotation curve, Galaxy
Abstract: We show that galaxy merging is a natural feature of models in which the structure that we see today grew by the gravitational amplification of small amplitude density fluctuations in the early universe. We argue that a proper description of the dynamics and morphologies of real galaxies must take into account the infall of material and merging that is to be expected over a Hubble time.
Published: 1990
Full Text: View/download PDF

39. Unilateral spinal anesthesia with hypobaric L-Bupivacaine 0,375%

Author: H Mavromatis, I. Katsoulis, G Efstathiou, D Iconomopoulos, G. Roussakis, and L. Rizzotti
Subjects: Bupivacaine, medicine.medical_specialty, Anesthesiology and Pain Medicine, business.industry, Anesthesia, Medicine, Spinal anesthesia, General Medicine, business, Surgery, medicine.drug
Published: 2003
Full Text: View/download PDF

40. Self-Similar Gravitational Clustering

Author: G. Efstathiou
Abstract: The nature of the distribution of galaxies poses a challenging problem for theorists. It seems reasonable, as a start, to suppose that galaxies and clusters arose from small perturbations by gravitational instability. However, one still has the problem of the choice of initial conditions, for example, the shape of the fluctuation spectrum and the cosmological density parameter Ω. A considerable simplification is to assume that the clustering pattern obeys some simple similarity scaling, so that the clustering at some early time, apart from a change in length scale, is statistically indistinguishable from the pattern observed today. The power-law shape of the two-point correlation function and the simple forms of higher order correlation functions (Peebles, 1980) have provided some evidence that such a simplifying assumption may be relevant - just how relevant is the subject of this article.
Published: 1983
Full Text: View/download PDF

41. The APM Galaxy Survey

Author: S.J. Maddox, G. Efstathiou, and J. Loveday
Abstract: Wide-field surveys of galaxies and clusters are an indispensable tool for studying large scale structure in the universe. The Abell catalogue (Abell 1958), Zwicky catalogue (Zwicky et. al. 1961-1968), and the Lick survey (Shane and Wirtanen 1967, Seldner et. al. 1977) have provided many statistical results of key importance to our understanding of galaxy formation and clustering (see e.g. Peebles 1980). However, these surveys were constructed more than 20 years ago. Since then, there have been major technological developments in photographic emulsions, automatic scanning machines and computers. It is therefore possible to improve significantly on earlier surveys by generating deep galaxy catalogues with high photometric precision and uniformity over wide areas of sky. Over the last four years, we have taken advantage of these developments to construct a new survey of several million galaxies.
Published: 1988
Full Text: View/download PDF

42. Line-Strength Gradients in Early-Type Galaxies

Author: J. Gorgas and G. Efstathiou
Subjects: Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics::Galaxy Astrophysics
Abstract: We have measured line-strength gradients in a sample of 15 early-type galaxies. The line-strength measures include the Mg2 index and the equivalent widths of Hβ and two iron blends at 5270Å and 5335Å. In most of the galaxies we find gradients in the metallic line-strengths. However, the gradients vary markedly from object to object and do not correlate strongly with other parameters such as total luminosity, rotation, etc. A comparison of the line-strengths in the outer parts of these galaxies with galactic globular clusters suggests relatively modest abundance gradients in early-type galaxies.
Published: 1987
Full Text: View/download PDF

43. Self-similar gravitational clustering

Author: G. Efstathiou, S. M. Fall, and C. Hogan
Subjects: Physics, Gravitation, Galaxy groups and clusters, Similarity (geometry), Classical mechanics, Space and Planetary Science, Astronomy and Astrophysics, Statistical physics, Correlation function (astronomy), Cluster analysis, Scaling, Fluctuation spectrum, Galaxy cluster
Abstract: The nature of the distribution of galaxies poses a challenging problem for theorists. It seems reasonable, as a start, to suppose that galaxies and clusters arose from small perturbations by gravitational instability. However, one still has the problem of the choice of initial conditions, for example, the shape of the fluctuation spectrum and the cosmological density parameter Ω. A considerable simplification is to assume that the clustering pattern obeys some simple similarity scaling, so that the clustering at some early time, apart from a change in length scale, is statistically indistinguishable from the pattern observed today. The power-law shape of the two-point correlation function and the simple forms of higher order correlation functions (Peebles, 1980) have provided some evidence that such a simplifying assumption may be relevant — just how relevant is the subject of this article.
Published: 1979
Full Text: View/download PDF

44. High Redshift Quasars in the Cold Dark Matter Cosmology

Author: G. Efstathiou
Published: 1989
Full Text: View/download PDF

45. The Cross-Correlation of Abell Clusters with the Lick Galaxy Counts

Author: Per B. Lilje and G. Efstathiou
Published: 1988
Full Text: View/download PDF

46. The APM Galaxy Survey

Author: S. J. Maddox, G. Efstathiou, and J. Loveday
Published: 1988
Full Text: View/download PDF

47. A simulation of galaxy formation and clustering

Author: F. R. Pearce, A. Jenkins, C. S. Frenk, J. M. Colberg, S. D. M. White, P. A. Thomas, H. M. P. Couchman, J. A. Peacock, G. Efstathiou, and (The Virgo Consortium)
Subjects: Physics, Cold dark matter, media_common.quotation_subject, Astrophysics (astro-ph), FOS: Physical sciences, Shape of the universe, Astronomy and Astrophysics, Cosmological constant, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Correlation function (astronomy), Universe, Galaxy, Space and Planetary Science, Galaxy formation and evolution, Astrophysics::Galaxy Astrophysics, media_common, Luminosity function (astronomy)
Abstract: We discuss early results from the first large N-body/hydrodynamical simulation to resolve the formation of galaxies in a cold dark matter universe. The simulation follows the formation of galaxies by gas cooling within dark halos of mass a few times $10^{11}\Msun$ and above, in a flat universe with a positive cosmological constant. Over 2200 galaxies form in our simulated volume of $(100 \Mpc)^3$. Assigning luminosities to the model galaxies using a spectral population synthesis model results in a K-band luminosity function in excellent agreement with observations. The two-point correlation function of galaxies in the simulation evolves very little since $z=3$ and has a shape close to a power-law over four orders of magnitude in amplitude. At the present day, the galaxy correlation function in the simulation is antibiased relative to the mass on small scales and unbiased on large scales. It provides a reasonable match to observations., 4 pages, submitted to ApJL

48. Future Science Prospects for AMI

Author: Keith Grainge, P {Alexander}, Richard Battye, M {Birkinshaw}, A {Blain}, M {Bremer}, Sarah Bridle, M {Brown}, R {Davis}, Clive Dickinson, A {Edge}, G {Efstathiou}, R {Fender}, M {Hardcastle}, J {Hatchell}, M {Hobson}, M {Jarvis}, B {Maughan}, I {McHardy}, M {Middleton}, A {Lasenby}, R {Saunders}, G {Savini}, A {Scaife}, G {Smith}, M {Thompson}, G {White}, K {Zarb-Adami}, J {Allison}, J {Buckle}, A {Castro-Tirado}, M {Chernyakova}, R {Deane}, F {Feroz}, R {Genova Santos}, D {Green}, D {Hannikainen}, I {Heywood}, N {Hurley-Walker}, R {Kneissl}, K {Koljonen}, S {Kulkarni}, S {Markoff}, C {MacTavish}, M {McCollough}, S {Migliari}, J M {Miller}, J {Miller-Jones}, M {Olamaie}, Z {Paragi}, T {Pearson}, G {Pooley}, K {Pottschmidt}, R {Rebolo}, J {Richer}, J {Riley}, J {Rodriguez}, C {Rodriguez-Gonzalvez}, A {Rushton}, P {Savolainen}, P {Scott}, T {Shimwell}, M {Tavani}, J {Tomsick}, V {Tudose}, K {van der Heyden}, A {van der Horst}, A {Varlotta}, E {Waldram}, J {Wilms}, A {Zdziarski}, J {Zwart}, Y {Perrott}, C {Rumsey}, and M {Schammel}
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Cosmology and Nongalactic Astrophysics (astro-ph.CO), Astrophysics of Galaxies (astro-ph.GA), FOS: Physical sciences, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM), Astrophysics - Astrophysics of Galaxies, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The Arcminute Microkelvin Imager (AMI) is a telescope specifically designed for high sensitivity measurements of low-surface-brightness features at cm-wavelength and has unique, important capabilities. It consists of two interferometer arrays operating over 13.5-18 GHz that image structures on scales of 0.5-10 arcmin with very low systematics. The Small Array (AMI-SA; ten 3.7-m antennas) couples very well to Sunyaev-Zel'dovich features from galaxy clusters and to many Galactic features. The Large Array (AMI-LA; eight 13-m antennas) has a collecting area ten times that of the AMI-SA and longer baselines, crucially allowing the removal of the effects of confusing radio point sources from regions of low surface-brightness, extended emission. Moreover AMI provides fast, deep object surveying and allows monitoring of large numbers of objects. In this White Paper we review the new science - both Galactic and extragalactic - already achieved with AMI and outline the prospects for much more., 20 pages, 11 figures; white paper. Revised author list, section IB, section IIIC2, references

49. The Anglo-Australian Redshift Survey

Author: J. Bean, G. Efstathiou, R. S. Ellis, B. A. Peterson, T. Shanks, and Z-L. Zou
Subjects: Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics::Galaxy Astrophysics
Abstract: The aim of the survey is to sample a relatively large, randomly chosen volume of the Universe in order to study the large-scale distribution of galaxies using the two-point correlation function, the peculiar velocities between galaxy pairs and to provide an estimate of the galaxian luminosity function that is unaffected by density inhomogeneities and Virgo infall.
Published: 1983
Full Text: View/download PDF

50. Planck 2018 results

Author: Antony Lewis, X. Dupac, James R. Fergusson, François R. Bouchet, Diego Molinari, E. Martínez-González, Jean-François Cardoso, L. Salvati, Jörg P. Rachen, Krzysztof M. Gorski, K. Ganga, A. Marcos-Caballero, C. Combet, Hannu Kurki-Suonio, E. Di Valentino, Jose M. Diego, L. Montier, Jan Hamann, J. F. Macías-Pérez, E. Franceschi, Charles R. Lawrence, M. Douspis, Erminia Calabrese, E. P. S. Shellard, Frederico Arroja, M. Le Jeune, P. Vielva, Andrea Zacchei, Graca Rocha, Martina Gerbino, Zhiqi Huang, Davide Maino, Adam Moss, Ricardo Genova-Santos, D. Tavagnacco, M. López-Caniego, A. A. Fraisse, M. Tenti, F. Piacentini, J.-P. Bernard, P. de Bernardis, Tiziana Trombetti, L. Toffolatti, Soumen Basak, F. Elsner, J.-L. Puget, Benjamin D. Wandelt, Julian Borrill, R. B. Barreiro, Gabriel Jung, Michele Liguori, S. Galeotta, Will Handley, F. Cuttaia, G. Polenta, R. C. Butler, K. Kiiveri, Anthony Lasenby, Alessandro Melchiorri, Reijo Keskitalo, A. J. Banday, M.-A. Miville-Deschênes, A. Renzi, P. Bielewicz, F. Oppizzi, Yashar Akrami, Anthony Challinor, B. Casaponsa, E. Keihänen, Gianmarco Maggio, B. P. Crill, Nicola Bartolo, B. Van Tent, Fabrizio Villa, Francesca Perrotta, F. K. Hansen, J. B. Kim, G. Sirri, Andrei V. Frolov, Michele Maris, J. A. Tauber, M. Savelainen, D. Herranz, A.-S. Suur-Uski, Yabebal Fantaye, Sabino Matarrese, M. Migliaccio, M. Tomasi, M. Bucher, Nicola Vittorio, J. Valiviita, V. Lindholm, W. C. Jones, Douglas Scott, R. Fernandez-Cobos, D. Paoletti, Marco Bersanelli, Torsten A. Enßlin, A. Moneti, M. Frailis, Carlo Baccigalupi, V. Pettorino, François Levrier, E. Hivon, J. Aumont, B. Racine, A. Mennella, G. Patanchon, Alessandro Gruppuso, Ingunn Kathrine Wehus, M. Reinecke, J.-M. Delouis, P. D. Meerburg, Massimiliano Lattanzi, Jose Alberto Rubino-Martin, N. Mandolesi, Chiara Sirignano, Kendrick M. Smith, Andrew H. Jaffe, Peter Meinhold, J.-M. Lamarre, A. de Rosa, G. de Zotti, B. Partridge, J. González-Nuevo, A. Ducout, Locke D. Spencer, M. Ashdown, H. K. Eriksen, Martin Kunz, Mathieu Remazeilles, Jon E. Gudmundsson, L. P. L. Colombo, Jason D. McEwen, Mario Ballardini, Peter G. Martin, George Efstathiou, Serge Gratton, Carlo Burigana, Nicoletta Krachmalnicoff, Yin-Zhe Ma, Jacques Delabrouille, Fabio Finelli, L. Pagano, N. Mauri, S. Dusini, Andrea Zonca, R. A. Sunyaev, P. B. Lilje, Luca Stanco, H. C. Chiang, K. Benabed, J. R. Bond, B. Ruiz-Granados, O. Doré, Paolo Natoli, Maresuke Shiraishi, Moritz Münchmeyer, S. Galli, Gianluca Morgante, Astrophysique, Laboratoire de physique de l'ENS - ENS Paris (LPENS (UMR_8023)), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut de recherche en astrophysique et planétologie (IRAP), Institut national des sciences de l'Univers (INSU - CNRS)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS), Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), University of Parma = Università degli studi di Parma [Parme, Italie], Canadian Institute for Theoretical Astrophysics (CITA), Lawrence Berkeley National Laboratory [Berkeley] (LBNL), Patrimoine, Littérature, Histoire (PLH), Université Toulouse - Jean Jaurès (UT2J), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Universidade Aberta [Lisboa], Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Dipartimento di Fisica [Roma La Sapienza], Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome], Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), Institut d'astrophysique spatiale (IAS), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Laboratory for Phytosanitary Diagnostics and Forecasts, All-Russian Institute for Plant Protection, Russian Academy of Sciences [Moscow] (RAS), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées, Department of Atmospheric, Oceanic, and Space Sciences [Ann Arbor] (AOSS), University of Michigan [Ann Arbor], University of Michigan System-University of Michigan System, Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA (UMR_8112)), Sorbonne Université (SU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), ICRA and Physics Department, Dipartimento di Fisica 'G. Galilei', Universita degli Studi di Padova, University of Cambridge [UK] (CAM), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE), Centre National de la Recherche Scientifique (CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Pierre et Marie Curie - Paris 6 (UPMC), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), University of Manchester [Manchester], University of British Columbia (UBC), Laboratoire de neurobiologie cellulaire et moléculaire (NBCM), Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Planck Collaboration, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Université Paris Diderot - Paris 7 (UPD7), Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut national des sciences de l'Univers (INSU - CNRS), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2020-....] (UGA [2020-....])-Institut polytechnique de Grenoble - Grenoble Institute of Technology [2020-....] (Grenoble INP [2020-....]), Université Grenoble Alpes [2020-....] (UGA [2020-....]), Sorbonne Université (SU)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique Théorique d'Orsay [Orsay] (LPT), Université Paris-Sud - Paris 11 (UP11)-Centre National de la Recherche Scientifique (CNRS), Planck, Department of Physics, Helsinki Institute of Physics, Universidad de Cantabria, Fédération de recherche du Département de physique de l'Ecole Normale Supérieure - ENS Paris (FRDPENS), Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Paris (ENS Paris)-Université Paris Diderot - Paris 7 (UPD7)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS), Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, PSL Research University (PSL)-PSL Research University (PSL)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de physique de l'ENS - ENS Paris (LPENS), Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Sorbonne Université (SU)-École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP)-Sorbonne Université (SU)-École normale supérieure - Paris (ENS Paris), High-Energy Frontier, Van Swinderen Institute for Particle Physics and G, Ministerio de Economía y Competitividad (España), Consejo Superior de Investigaciones Científicas (España), European Commission, European Research Council, European Space Agency, Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Département de Physique de l'ENS-PSL, École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-Département de Physique de l'ENS-PSL, Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Università degli studi di Parma = University of Parma (UNIPR), Université de Toulouse (UT)-Université de Toulouse (UT), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome] (UNIROMA), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Università degli Studi di Padova = University of Padua (Unipd), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Y. Akrami, F. Arroja, M. Ashdown, J. Aumont, C. Baccigalupi, M. Ballardini, A. J. Banday, R. B. Barreiro, N. Bartolo, S. Basak, K. Benabed, J. -P. Bernard, M. Bersanelli, P. Bielewicz, J. R. Bond, J. Borrill, F. R. Bouchet, M. Bucher, C. Burigana, R. C. Butler, E. Calabrese, J. -F. Cardoso, B. Casaponsa, A. Challinor, H. C. Chiang, L. P. L. Colombo, C. Combet, B. P. Crill, F. Cuttaia, P. de Bernardi, A. de Rosa, G. de Zotti, J. Delabrouille, J. -M. Deloui, E. Di Valentino, J. M. Diego, O. Doré, M. Douspi, A. Ducout, X. Dupac, S. Dusini, G. Efstathiou, F. Elsner, T. A. Enßlin, H. K. Eriksen, Y. Fantaye, J. Fergusson, R. Fernandez-Cobo, F. Finelli, M. Fraili, A. A. Fraisse, E. Franceschi, A. Frolov, S. Galeotta, K. Ganga, R. T. Génova-Santo, M. Gerbino, J. González-Nuevo, K. M. Górski, S. Gratton, A. Gruppuso, J. E. Gudmundsson, J. Hamann, W. Handley, F. K. Hansen, D. Herranz, E. Hivon, Z. Huang, A. H. Jaffe, W. C. Jone, G. Jung, E. Keihänen, R. Keskitalo, K. Kiiveri, J. Kim, N. Krachmalnicoff, M. Kunz, H. Kurki-Suonio, J. -M. Lamarre, A. Lasenby, M. Lattanzi, C. R. Lawrence, M. Le Jeune, F. Levrier, A. Lewi, M. Liguori, P. B. Lilje, V. Lindholm, M. López-Caniego, Y. -Z. Ma, J. F. Macías-Pérez, G. Maggio, D. Maino, N. Mandolesi, A. Marcos-Caballero, M. Mari, P. G. Martin, E. Martínez-González, S. Matarrese, N. Mauri, J. D. McEwen, P. D. Meerburg, P. R. Meinhold, A. Melchiorri, A. Mennella, M. Migliaccio, M. -A. Miville-Deschêne, D. Molinari, A. Moneti, L. Montier, G. Morgante, A. Mo, M. Münchmeyer, P. Natoli, F. Oppizzi, L. Pagano, D. Paoletti, B. Partridge, G. Patanchon, F. Perrotta, V. Pettorino, F. Piacentini, G. Polenta, J. -L. Puget, J. P. Rachen, B. Racine, M. Reinecke, M. Remazeille, A. Renzi, G. Rocha, J. A. Rubiño-Martín, B. Ruiz-Granado, L. Salvati, M. Savelainen, D. Scott, E. P. S. Shellard, M. Shiraishi, C. Sirignano, G. Sirri, K. Smith, L. D. Spencer, L. Stanco, R. Sunyaev, A. -S. Suur-Uski, J. A. Tauber, D. Tavagnacco, M. Tenti, L. Toffolatti, M. Tomasi, T. Trombetti, J. Valiviita, B. Van Tent, P. Vielva, F. Villa, N. Vittorio, B. D. Wandelt, I. K. Wehu, A. Zacchei, A. Zonca, Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Observatoire de Paris, and PSL Research University (PSL)-PSL Research University (PSL)-Université Paris Diderot - Paris 7 (UPD7)
Subjects: High Energy Physics - Theory, cosmological model, Astronomy, Cosmic microwave background, POLARIZATION ANISOTROPIES, cosmic background radiation: polarization, Astrophysics, cosmic background radiation, Cosmic background radiation, Early Universe, 01 natural sciences, 7. Clean energy, expansion: multipole, General Relativity and Quantum Cosmology, High Energy Physics - Phenomenology (hep-ph), cosmology: theory, 3-POINT CORRELATION-FUNCTION, observations [Cosmology], data analysis [Methods], 010303 astronomy & astrophysics, TEMPERATURE, Physics, [PHYS.HTHE]Physics [physics]/High Energy Physics - Theory [hep-th], hep-th, formation, hep-ph, early Universe, CMB cold spot, inflation: model, High Energy Physics - Phenomenology, scale dependence, non-Gaussianity, symbols, Sunyaev-Zel'dovich effect, [PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc], astro-ph.CO, Trispectrum, Astrophysics - Cosmology and Nongalactic Astrophysics, Particle physics, data analysis method, Cosmology and Nongalactic Astrophysics (astro-ph.CO), satellite: Planck, gr-qc, FOS: Physical sciences, PREDICTIONS, General Relativity and Quantum Cosmology (gr-qc), Astrophysics::Cosmology and Extragalactic Astrophysics, Sunyaev–Zel'dovich effect, Separable space, NO, isocurvature, symbols.namesake, trispectrum, Settore FIS/05 - Astronomia e Astrofisica, parity: violation, gravitation: lens, statistical analysis, theory [Cosmology], Non-Gaussianity, 0103 physical sciences, BISPECTRUM, INFRARED BACKGROUND ANISOTROPIES, structure, bispectrum: scale dependence, Planck, cosmic background radiation: bispectrum, inflation, FAST ESTIMATOR, numerical calculations, non-Gaussianity: primordial, 010308 nuclear & particles physics, ISOCURVATURE PERTURBATIONS, Astronomy and Astrophysics, stability, 115 Astronomy, Space science, Inflation, methods: data analysis, boundary condition, cosmic background radiation: temperature, Cosmology: observations, Cosmology: theory, Methods: data analysis, High Energy Physics - Theory (hep-th), 13. Climate action, Space and Planetary Science, axion, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], cosmology: observations, Cosmic background radiation, Cosmology: observations, Cosmology: theory, Early Universe, Inflation, Methods: data analysis, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Bispectrum
Abstract: Planck Collaboration: et al., arXiv:1905.05697v1, We analyse the Planck full-mission cosmic microwave background (CMB) temperature and E-mode polarization maps to obtain constraints on primordial non-Gaussianity (NG). We compare estimates obtained from separable template-fitting, binned, and optimal modal bispectrum estimators, finding consistent values for the local, equilateral, and orthogonal bispectrum amplitudes. Our combined temperature and polarization analysis produces the following final results: fNLlocal = −0.9 ± 5.1; fNLequil = −26 ± 47; and fNLortho = −38 ± 24 (68% CL, statistical). These results include low-multipole (4 ≤ ℓ < 40) polarization data that are not included in our previous analysis. The results also pass an extensive battery of tests (with additional tests regarding foreground residuals compared to 2015), and they are stable with respect to our 2015 measurements (with small fluctuations, at the level of a fraction of a standard deviation, which is consistent with changes in data processing). Polarization-only bispectra display a significant improvement in robustness; they can now be used independently to set primordial NG constraints with a sensitivity comparable to WMAP temperature-based results and they give excellent agreement. In addition to the analysis of the standard local, equilateral, and orthogonal bispectrum shapes, we consider a large number of additional cases, such as scale-dependent feature and resonance bispectra, isocurvature primordial NG, and parity-breaking models, where we also place tight constraints but do not detect any signal. The non-primordial lensing bispectrum is, however, detected with an improved significance compared to 2015, excluding the null hypothesis at 3.5σ. Beyond estimates of individual shape amplitudes, we also present model-independent reconstructions and analyses of the Planck CMB bispectrum. Our final constraint on the local primordial trispectrum shape is gNLlocal = (−5.8 ± 6.5) × 104 (68% CL, statistical), while constraints for other trispectrum shapes are also determined. Exploiting the tight limits on various bispectrum and trispectrum shapes, we constrain the parameter space of different early-Universe scenarios that generate primordial NG, including general single-field models of inflation, multi-field models (e.g. curvaton models), models of inflation with axion fields producing parity-violation bispectra in the tensor sector, and inflationary models involving vector-like fields with directionally-dependent bispectra. Our results provide a high-precision test for structure-formation scenarios, showing complete agreement with the basic picture of the ΛCDM cosmology regarding the statistics of the initial conditions, with cosmic structures arising from adiabatic, passive, Gaussian, and primordial seed perturbations., The Planck Collaboration acknowledges the support of: ESA; CNES and CNRS/INSU-IN2P3-INP (France); ASI, CNR, and INAF (Italy); NASA and DoE (USA); STFC and UKSA (UK); CSIC, MINECO, JA, and RES (Spain); Tekes, AoF, and CSC (Finland); DLR and MPG (Germany); CSA (Canada); DTU Space (Denmark); SER/SSO (Switzerland); RCN (Norway); SFI (Ireland); FCT/MCTES (Portugal); and ERC and PRACE (EU).
Published: 2020
Full Text: View/download PDF

Catalog

Books, media, physical & digital resources

See catalog results

Searchworks

Select search scope, currently: Articles Catalog books, media & more in Jio Institute collections Articles journal articles & other e-resources

Search

Search Constraints

Refine your results

Search Limiters

Topic

Publication Year Range

Language

Publication Type

Journal

Region

Database

Publisher

127 results on '"G., Efstathiou"'

Search Results

Catalog

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources