Search

Your search keyword '"de Boer K"' showing total 286 results
Start Over Author "de Boer K" Language english
286 results on '"de Boer K"'

1. Congenital heart disease in the ESC EORP Registry of Pregnancy and Cardiac disease (ROPAC)

Author

Hall, Roger, Roos-Hesselink, Jolien, Stein, Joerg, Parsonage, William Anthony, Budts, Werner, De Backer, Julie, Grewal, Jasmin, Marelli, Ariane, Kaemmerer, Harald, Jondeau, Guillaume, Johnson, Mark, Maggioni, Aldo P., Tavazzi, Luigi, Thilen, Ulf, Elkayam, Uri, Otto, Catherine, Sliwa, Karen, Aquieri, A., Saad, A., Vega, H. Ruda, Hojman, J., Caparros, J.M., Blanco, M. Vazquez, Arstall, M., Chung, C.M., Mahadavan, G., Aldridge, E., Wittwer, M., Chow, Y.Y., Parsonage, W.A., Lust, K., Collins, N., Warner, G., Hatton, R., Gordon, A., Nyman, E., Stein, J., Donhauser, E., Gabriel, H., Bahshaliyev, A., Guliyev, F., Hasanova, I., Jahangirov, T., Gasimov, Z., Salim, A., Ahmed, C.M., Begum, F., Hoque, M.H., Mahmood, M., Islam, M.N., Haque, P.P., Banerjee, S.K., Parveen, T., Morissens, M., De Backer, J., Demulier, L., de Hosson, M., Budts, W., Beckx, M., Kozic, M., Lovric, M., Kovacevic-Preradovic, T., Chilingirova, N., Kratunkov, P., Wahab, N., McLean, S., Gordon, E., Walter, L., Marelli, A., Montesclaros, A.R., Monsalve, G., Rodriguez, C., Balthazar, F., Quintero, V., Palacio, W., Cadavid, L.A. Mejía, Ortiz, E. Munoz, Hoyos, F. Fortich, Guerrero, E. Arevalo, Ricardo, J. Gandara, Penagos, J. Velasquez, Vavera, Z., Prague, Popelova, J., Vejlstrup, N., Grønbeck, L., Johansen, M., Ersboll, A., Elrakshy, Y., Eltamawy, K., Abd-El Aziz, M. Gamal, El Nagar, A., Ebaid, H., Elenin, H. Abo, Saed, M., Farag, S., Makled, W., Sorour, K., Ashour, Z., El-Sayed, G., Meguid Mahdy, M. Abdel, Taha, N., Dardeer, A., Shabaan, M., Ali, M., Moceri, P., Duthoit, G., Gouton, M., Nizard, J., Baris, L., Cohen, S., Ladouceur, M., Khimoud, D., Iung, B., Berger, F., Olsson, A., Gembruch, U., Merz, W.M., Reinert, E., Clade, S., Kliesch, Y., Wald, C., Sinning, C., Kozlik-Feldmann, R., Blankenberg, S., Zengin-Sahm, E., Mueller, G., Hillebrand, M., Hauck, P., von Kodolitsch, Y., Zarniko, N., Baumgartner, Muenster H., Schmidt, R., Hellige, A., Tutarel, O., Kaemmerer, H., Kuschel, B., Nagdyman, N., Motz, R., Maisuradze, D., Frogoudaki, A., Iliodromitis, E., Anastasiou-Nana, M., Marousi, Triantafyllis, D., Bekiaris, G., Karvounis, H., Giannakoulas, G., Ntiloudi, D., Mouratoglou, S.A., Temesvari, A., Balint, H., Kohalmi, D., Merkely, B., Liptai, C., Nemes, A., Forster, T., Kalapos, A., Berek, K., Havasi, K., Ambrus, N., Shelke, A., Kawade, R., Patil, S., Martanto, E., Aprami, T.M., Purnomowati, A., Cool, C.J., Hasan, M., Akbar, R., Hidayat, S., Dewi, T.I., Permadi, W., Soedarsono, D.A., Ansari-Ramandi, M.M., Samiei, N., Tabib, A., Kashfi, F., Ansari-Ramandi, S., Rezaei, S., Farhan, H. Ali, Al-Hussein, A., Al-Saedi, G., Mahmood, G., Yaseen, I.F., Al-Yousuf, L., AlBayati, M., Mahmood, S., Raheem, S., AlHaidari, T., Dakhil, Z., Thornton, P., Donnelly, J., Bowen, M., Blatt, A., Elbaz-Greener, G., Shotan, A., Yalonetsky, S., Goland, S., Biener, M., Assenza, G. Egidy, Bonvicini, M., Donti, A., Bulgarelli, A., Prandstraller, D., Romeo, C., Crepaz, R., Sciatti, E., Metra, M., Orabona, R., Ali, L. Ait, Festa, P., Fesslova, V., Bonanomi, C., Calcagnino, M., Lombardi, F., Colli, A.M., Ossola, M.W., Gobbi, C., Gherbesi, E., Tondi, L., Schiavone, M., Squillace, M., Carmina, M.G., Maina, A., Macchi, C., Gollo, E., Comoglio, F.M., Montali, N., Re, P., Bordese, R., Todros, T., Donvito, V., Marra, W. Grosso, Sinagra, G., D'Agata Mottolese, B., Bobbo, M., Gesuete, V., Rakar, S., Ramani, F., Niwa, K., Mekebekova, D., Mussagaliyeva, A., Lee, T., Mirrakhimov, E., Abilova, S., Bektasheva, E., Neronova, K., Lunegova, O., Žaliūnas, R., Jonkaitienė, R., Petrauskaitė, J., Laucevicius, A., Jancauskaite, D., Lauciuviene, L., Gumbiene, L., Lankutiene, L., Glaveckaite, S., Laukyte, M., Solovjova, S., Rudiene, V., Chee, K.H., Yim, C.C.-W., Ang, H.L., Kuppusamy, R., Watson, T., Caruana, M., Estensen, M.-E., Kayani, M.G.A. Mahmood, Munir, R., Tomaszuk-Kazberuk, A., Sobkowicz, B., Przepiesc, J., Lesniak-Sobelga, A., Tomkiewicz-Pajak, L., Komar, M., Olszowska, M., Podolec, P., Wisniowska-Smialek, S., Lelonek, M., Faflik, U., Cichocka-Radwan, A., Plaskota, K., Trojnarska, O., Guerra, N., de Sousa, L., Cruz, C., Ribeiro, V., Jovanova, S., Petrescu, V., Jurcut, R., Ginghina, C., Coman, I. Mircea, Musteata, M., Osipova, O., Golivets, T., Khamnagadaev, I., Golovchenko, O., Nagibina, A., Ropatko, I., Gaisin, I.R., Shilina, L. Valeryevna, Sharashkina, N., Shlyakhto, E., Irtyuga, O., Moiseeva, O., Karelkina, E., Zazerskaya, I., Kozlenok, A., Sukhova, I., Jovovic, L., Prokšelj, K., Koželj, M., Askar, A.O., Abdilaahi, A.A., Mohamed, M.H., Dirir, A.M., Sliwa, K., Manga, P., Pijuan-Domenech, A., Galian-Gay, L., Tornos, P., Subirana, M.T., T, M., Subirana, Oliver, J.M., Garcia-Aranda Dominguez, B., Gonzalez, I. Hernandez, Jimenez, J.F. Delgado, Subias, P. Escribano, Murga, N., Elbushi, A., Suliman, A., Jazzar, K., Murtada, M., Ahamed, N., Dellborg, M., Furenas, E., Jinesjo, M., Skoglund, K., Eriksson, P., Gilljam, T., Thilen, U., Tobler, D., Wustmann, K., Schwitz, F., Schwerzmann, M., Rutz, T., Bouchardy, J., Greutmann, M., Lopes, B.M. Santos, Meier, L., Arrigo, M., de Boer, K., Konings, T., Wajon, E., Wagenaar, L.J., Polak, P., Pieper, E.P.G., Roos-Hesselink, J., van Hagen, I., Duvekot, H., Cornette, J.M.J., De Groot, C., van Oppen, C., Sarac, L., Esen, O. Batukan, Enar, S. Catirli, Mondo, C., Ingabire, P., Nalwanga, B., Semu, T., Salih, B.T., Almahmeed, W.A.R., Wani, S., Farook, F.S. Mohamed, Ain, Al, Gerges, F., Komaranchath, A.M., Al bakshi, F., Al Mulla, A., Yusufali, A.H., Al Hatou, E.I., Bazargani, N., Hussain, F., Hudsmith, L., Thompson, P., Thorne, S., Bowater, S., Money-Kyrle, A., Clifford, P., Ramrakha, P., Firoozan, S., Chaplin, J., Bowers, N., Adamson, D., Schroeder, F., Wendler, R., Hammond, S., Nihoyannopoulos, P., Norfolk, Norwich, Hall, R., Freeman, L., Veldtman, G., Kerr, J., Tellett, L., Scott, N., Bhatt, A.B., DeFaria Yeh, D., Youniss, M.A., Wood, M., Sarma, A.A., Tsiaras, S., Stefanescu, A., Duran, J.M., Stone, L., Majdalany, D.S., Chapa, J., Chintala, K., Gupta, P., Botti, J., Ting, J., Davidson, W.R., Wells, G., Sparks, D., Paruchuri, V., Marzo, K., Patel, D., Wagner, W., Ahanya, S.N., Colicchia, L., Jentink, T., Han, K., Loichinger, M., Parker, M., Longtin, C., Yetman, A., Erickson, K., Cramer, J., Tsai, S., Fletcher, B., Warta, S., Cohen, C., Lindblade, C., Puntel, R., Nagaran, K., Croft, N., Gurvitz, M., Otto, C., Talluto, C., Murphy, D., Perlroth, M.G., Ramlakhan, Karishma P., Johnson, Mark R., Lelonek, Malgorzata, Saad, Aly, Gasimov, Zaur, Sharashkina, Natalia V., Thornton, Patrick, Arstall, Margaret, and Roos-Hesselink, Jolien W.

Published
2021
Full Text
View/download PDF

2. NGS panel analysis in 24 ectopia lentis patients; a clinically relevant test with a high diagnostic yield

Author

Overwater, E., Floor, K., van Beek, D., de Boer, K., van Dijk, T., Hilhorst-Hofstee, Y., Hoogeboom, A.J.M., van Kaam, K.J., van de Kamp, J.M., Kempers, M., Krapels, I.P.C., Kroes, H.Y., Loeys, B., Salemink, S., Stumpel, C.T.R.M., Verhoeven, V.J.M., Wijnands-van den Berg, E., Cobben, J.M., van Tintelen, J.P., Weiss, M.M., Houweling, A.C., and Maugeri, A.

Published
2017
Full Text
View/download PDF

3. Single- versus double-layer closure of the caesarean (uterine) scar in the prevention of gynaecological symptoms in relation to niche development – the 2Close study: a multicentre randomised controlled trial

Author

Stegwee, S. I., Jordans, I. P. M., van der Voet, L. F., Bongers, M. Y., de Groot, C. J. M., Lambalk, C. B., de Leeuw, R. A., Hehenkamp, W. J. K., van de Ven, P. M., Bosmans, J. E., Pajkrt, E., Bakkum, E. A., Radder, C. M., Hemelaar, M., van Baal, W. M., Visser, H., van Laar, J. O. E. H., van Vliet, H. A. A. M., Rijnders, R. J. P., Sueters, M., Janssen, C. A. H., Hermes, W., Feitsma, A. H., Kapiteijn, K., Scheepers, H. C. J., Langenveld, J., de Boer, K., Coppus, S. F. P. J., Schippers, D. H., Oei, A. L. M., Kaplan, M., Papatsonis, D. N. M., de Vleeschouwer, L. H. M., van Beek, E., Bekker, M. N., Huisjes, A. J. M., Meijer, W. J., Deurloo, K. L., Boormans, E. M. A., van Eijndhoven, H. W. F., and Huirne, J. A. F.

Published
2019
Full Text
View/download PDF

6. Induction versus expectant monitoring for intrauterine growth restriction at term: randomised equivalence trial (DIGITAT)

Author

Boers, K E, Vijgen, S M C, Bijlenga, D, van der Post, J A M, Bekedam, D J, Kwee, A, van der Salm, P C M, van Pampus, M G, Spaanderman, M E A, de Boer, K, Duvekot, J J, Bremer, H A, Hasaart, T H M, Delemarre, F M C, Bloemenkamp, K W M, van Meir, C A, Willekes, C, Wijnen, E J, Rijken, M, le Cessie, S, Roumen, F J M E, Thornton, J, van Lith, J M M, Mol, B W J, and Scherjon, S A

Published
2011

13. Predicting successful intended vaginal delivery after previous caesarean section: external validation of two predictive models in a Dutch nationwide registration-based cohort with a high intended vaginal delivery rate

Author

Schoorel, E NC, Melman, S, van Kuijk, S MJ, Grobman, W A, Kwee, A, Mol, B WJ, Nijhuis, J G, Smits, L JM, Aardenburg, R, de Boer, K, Delemarre, F MC, van Dooren, I M, Franssen, M TM, Kleiverda, G, Kaplan, M, Kuppens, S MI, Lim, F TH, Sikkema, J M, Smid-Koopman, E, Visser, H, Vrouenraets, F PJM, Woiski, M, Hermens, R PMG, and Scheepers, H CJ

Published
2014
Full Text
View/download PDF

14. Holy Earth: Sea around us, sea within us

Author

De Boer, K. Lauren

Subjects
Ecological theology -- Analysis, Faith -- Analysis, Anthropology/archeology/folklore, Philosophy and religion
Published
2007

15. Involving women in personalised decision-making on mode of delivery after caesarean section: the development and pilot testing of a patient decision aid

Author

Schoorel, E NC, Vankan, E, Scheepers, H CJ, Augustijn, B CC, Dirksen, C D, de Koning, M, van Kuijk, S MJ, Kwee, A, Melman, S, Nijhuis, J G, Aardenburg, R, de Boer, K, Hasaart, T HM, Mol, B WJ, Nieuwenhuijze, M, van Pampus, M G, van Roosmalen, J, Roumen, F JME, de Vries, R, Wouters, M GAJ, van der Weijden, T, and Hermens, R PMG

Published
2014
Full Text
View/download PDF

16. Vaginal birth after a caesarean section: the development of a Western European population-based prediction model for deliveries at term

Author

Schoorel, E NC, van Kuijk, S MJ, Melman, S, Nijhuis, J G, Smits, L JM, Aardenburg, R, de Boer, K, Delemarre, F MC, van Dooren, I M, Franssen, M TM, Kaplan, M, Kleiverda, G, Kuppens, S MI, Kwee, A, Lim, F TH, Mol, B WJ, Roumen, F JME, Sikkema, J M, Smid-Koopman, E, Visser, H, Woiski, M, Hermens, R PMG, and Scheepers, H CJ

Published
2014
Full Text
View/download PDF

18. Should cervical favourability play a role in the decision for labour induction in gestational hypertension or mild pre-eclampsia at term? An exploratory analysis of the HYPITAT trial

Author

Tajik, P, van der Tuuk, K, Koopmans, CM, Groen, H, van Pampus, MG, van der Berg, PP, van der Post, JA, van Loon, AJ, de Groot, CJM, Kwee, A, Huisjes, AJM, van Beek, E, Papatsonis, DNM, Bloemenkamp, KW, van Unnik, GA, Porath, M, Rijnders, RJ, Stigter, RH, de Boer, K, Scheepers, HC, Zwinderman, AH, Bossuyt, PM, and Mol, BW

Published
2012
Full Text
View/download PDF

19. Induction versus expectant monitoring for intrauterine growth restriction at term: randomised equivalence trial (DIGITAT)

Author

Boers, K E, Vijgen, S M C, Bijlenga, D, van der Post, J A M, Bekedam, D J, Kwee, A, van der Salm, P C M, van Pampus, M G, Spaanderman, M E A, de Boer, K, Duvekot, J J, Bremer, H A, Hasaart, T H M, Delemarre, F M C, Bloemenkamp, K W M, van Meir, C A, Willekes, C, Wijnen, E J, Rijken, M, le Cessie, S, Roumen, F J M E, Thornton, J G, van Lith, J M M, Mol, B W J, and Scherjon, S A

Published
2010
Full Text
View/download PDF

20. An economic analysis of induction of labour and expectant monitoring in women with gestational hypertension or pre-eclampsia at term (HYPITAT trial)

Author

Vijgen, S MC, Koopmans, C M, Opmeer, B C, Groen, H, Bijlenga, D, Aarnoudse, J G, Bekedam, D J, Van Den Berg, P P, De Boer, K, Burggraaff, J M, Bloemenkamp, K WM, Drogtrop, A P, Franx, A, De Groot, C JM, Huisjes, A JM, Kwee, A, Van Loon, A J, Lub, A, Papatsonis, D NM, Van Der Post, J AM, Roumen, F JME, Scheepers, H CJ, Stigter, R H, Willekes, C, Mol, B WJ, and Van Pampus, M G

Published
2010
Full Text
View/download PDF

27. Book reviews

Author

Schilizzi, R. T., Hovenier, J. W., de Loore, C., Icke, Vincent, Butcher, H. R., Safronov, V. S., and de Boer, K. S.

Published
1991
Full Text
View/download PDF

29. Practicing the Art of Wonder through Radical Presence.

Author

de Boer, K. Lauren

Subjects
ANIMAL communities, PHYSICAL cosmology, COLOR of birds, BIOLOGICAL extinction, SELF-interest
Abstract

And hovering, something hummingbirds do with unparalleled grace, requires extremely rapid and energy-intensive wing movement. And no species of bird has used it so extravagantly as the hummingbird. The hummingbird's singular obsession with nectar also gave rise to a dazzling array of color in the hummingbird's plumage. [Extracted from the article]

Published
2021

30. Intergalactic and galactic clouds on the line of sight to SN 1993J in M81 seen in IUE spectra

Author

De Boer, K. S, Pascual, P. Rodriguez, Wamsteker, W, Sonneborn, G, Fransson, C, Bomans, D. J, and Kirshner, R. P

Subjects
Astronomy
Abstract

High resolution IUE spectra of SN 1993J in M81 show the existence of several clouds on the line of sight. These include local galactic gas at 0 km/s, gas in M81 at -130 km/s, a cloud in the halo in of the Milky Way near -45 km/s, and an intergalactic cloud near +140 km/s. Arguments for each of these locations are given. There is little gas in M81 in front of SN 1993J and no detectable CIV at or near -130 km/s. The gas of the halo of the Milky Way shows a large amount of CIV and SiIV. The intergalactic cloud shows a large velocity width extending from +100 km/s to +200 km/s and is very prominent in the absorption lines of AlIII, SiIV, and CIV. It may be related to energetic events in the M81 group galaxies.

Published
1993

31. Performance of the Montreal classification for inflammatory bowel diseases

Author

Spekhorst, Lieke M., Visschedijk, Marijn C., Alberts, Rudi, Festen, Eleonora A., Van Der Wouden, Egbert Jan, Dijkstra, Gerard, Weersma, Rinse K., Van Dullemen, H., Russel, M., Van Der Waaij, L. A., Thijs, W. J., Van De Woude, C. J., De Jong, D. J., Hoentjen, F., Ter Steege, R., De Boer, K. H.N., Van Bodegraven, A. A., Bouma, G., Pierik, M., Van Der Meulen, A. E., Oldenburg, B., Gastroenterology and hepatology, Groningen Institute for Gastro Intestinal Genetics and Immunology (3GI), Translational Immunology Groningen (TRIGR), and Groningen Institute for Organ Transplantation (GIOT)

Subjects
medicine.medical_specialty, GENETICS, IBD, Observational Study, INDETERMINATE, DIAGNOSIS, Severity of Illness Index, Inflammatory bowel disease, Gastroenterology, WORLD CONGRESS, Montreal classification, Crohn Disease, Predictive Value of Tests, Internal medicine, Severity of illness, medicine, MANAGEMENT, Humans, Netherlands, Crohn's disease, business.industry, Medical record, Reproducibility of Results, General Medicine, Prognosis, medicine.disease, GASTROENTEROLOGY, Ulcerative colitis, digestive system diseases, CROHNS-DISEASE, Phenotype, ULCERATIVE-COLITIS, Predictive value of tests, WORKING PARTY, Colitis, Ulcerative, Clinical Competence, Age of onset, Phenotypes- inter-observer agreement, business, Kappa
Abstract

AIM: To validate the Montreal classification system for Crohn's disease (CD) and ulcerative colitis (UC) within the Netherlands.METHODS: A selection of 20 de-identified medical records with an appropriate representation of the inflammatory bowel disease (IBD) sub phenotypes were scored by 30 observers with different professions (gastroenterologist specialist in IBD, gastroenterologist in training and IBD-nurses) and experience level with IBD patient care. Patients were classified according to the Montreal classification. In addition, participants were asked to score extra-intestinal manifestations (EIM) and disease severity in CD based on their clinical judgment. The inter-observer agreement was calculated by percentages of correct answers (answers identical to the "expert evaluation") and Fleiss-kappa (kappa). Kappa cutoffs: 0.8 excellent.RESULTS: The inter-observer agreement was excellent for diagnosis (kappa = 0.96), perianal disease (kappa = 0.92) and disease location in CD (kappa = 0.82) and good for age of onset (kappa = 0.67), upper gastrointestinal disease ( kappa = 0.62), disease behaviour in CD (kappa = 0.79) and disease extent in UC (kappa = 0.65). Disease severity in UC was scored poor (kappa = 0.23). The additional items resulted in a good inter-observer agreement for EIM (kappa = 0.68) and a moderate agreement for disease severity in CD ( kappa = 0.44). Percentages of correct answers over all Montreal items give a good reflection of the inter-observer agreement (> 80%), except for disease severity (48%-74%). IBD-nurses were significantly worse in scoring upper gastrointestinal disease in CD compared to gastroenterologists (P = 0.008) and gastroenterologists in training (P = 0.040). Observers with less than 10 years of experience were significantly better at scoring UC severity than observers with 10-20 years (P = 0.003) and more than 20 years (P = 0.003) of experience with IBD patient care. Observers with 10-20 years of experience with IBD patient care were significantly better at scoring upper gastrointestinal disease in CD than observers with less than 10 years (P = 0.007) and more than 20 years (P = 0.007) of experience with IBD patient care.CONCLUSION: We found a good to excellent inter-observer agreement for all Montreal items except for disease severity in UC (poor). (C) 2014 Baishideng Publishing Group Inc. All rights reserved.

Published
2014
Full Text
View/download PDF

32. Testing parallaxes with local Cepheids and RR Lyrae stars

Author

Clementini, G., Eyer, L., Ripepi, V., Marconi, M., Muraveva, T., Garofalo, A., Sarro, L. M., Palmer, M., Luri, X., Molinaro, R., Rimoldini, L., Szabados, L., Musella, I., Anderson, R. I., Prusti, T., De Bruijne, J. H. J., Brown, A. G. A., Vallenari, A., Babusiaux, C., Bailer-Jones, C. A. L., Bastian, U., Biermann, M., Evans, D. W., Jansen, F., Jordi, C., Klioner, S. A., Lammers, U., Lindegren, L., Mignard, F., Panem, C., Pourbaix, D., Randich, S., Sartoretti, P., Siddiqui, H. I., Soubiran, C., Valette, V., Van Leeuwen, F., Walton, N. A., Aerts, C., Arenou, F., Cropper, M., Drimmel, R., Hog, E., Katz, D., Lattanzi, M. G., O'Mullane, W., Grebel, E. K., Holland, A. D., Huc, C., Passot, X., Perryman, M., Bramante, L., Cacciari, C., Castaneda, J., Chaoul, L., Cheek, N., De Angeli, F., Fabricius, C., Guerra, R., Hernandez, J., Jean-Antoine-Piccolo, A., Masana, E., Messineo, R., Mowlavi, N., Nienartowicz, K., Ordonez-Blanco, D., Panuzzo, P., Portell, J., Richards, P. J., Riello, M., Seabroke, G. M., Tanga, P., Thevenin, F., Torra, J., Els, S. G., Gracia-Abril, G., Comoretto, G., Garcia-Reinaldos, M., Lock, T., Mercier, E., Altmann, M., Andrae, R., Astraatmadja, T. L., Bellas-Velidis, I., Benson, K., Berthier, J., Blomme, R., Busso, G., Carry, B., Cellino, A., Cowell, S., Creevey, O., Cuypers, J., Davidson, M., De Ridder, J., De Torres, A., Delchambre, L., Dell'Oro, A., Ducourant, C., Fremat, Y., Garcia-Torres, M., Gosset, E., Halbwachs, J. -L., Hambly, N. C., Harrison, D. L., Hauser, M., Hestroffer, D., Hodgkin, S. T., Huckle, H. E., Hutton, A., Jasniewicz, G., Jordan, S., Kontizas, M., Korn, A. J., Lanzafame, A. C., Manteiga, M., Moitinho, A., Muinonen, K., Osinde, J., Pancino, E., Pauwels, T., Petit, J. -M., Recio-Blanco, A., Robin, A. C., Siopis, C., Smith, M., Smith, K. W., Sozzetti, A., Thuillot, W., Van Reeven, W., Viala, Y., Abbas, U., Abreu Aramburu, A., Accart, S., Aguado, J. J., Allan, P. M., Allasia, W., Altavilla, G., Alvarez, M. A., Alves, J., Andrei, A. H., Anglada Varela, E., Antiche, E., Antojal, T., Anton, S., Arcay, B., Bach, N., Baker, S. G., Balaguer-Nunez, L., Barache, C., Barata, C., Barbier, A., Barblan, F., Barrado Y Navascues, D., Barros, M., Barstow, M. A., Becciani, U., Bellazzini, M., Bello Garcia, A., Belokurov, V., Bendjoya, P., Berihuete, A., Bianchi, L., Bienayme, O., Billebaud, F., Blagorodnova, N., Blanco-Cuaresma, S., Boch, T., Bombrun, A., Borrachero, R., Bouquillon, S., Bourda, G., Bragaglia, A., Breddels, M. A., Brouillet, N., Bruesemeister, T., Bucciarelli, B., Burgess, P., Burgon, R., Burlacu, A., Busonero, D., Buzzi, R., Caffau, E., Cambras, J., Campbell, H., Cancelliere, R., Cantat-Gaudin, T., Carlucci, T., Carrasco, J. M., Castellani, M., Charlot, P., Charnas, J., Chiavassa, A., Clotet, M., Cocozza, G., Collins, R. S., Costigan, G., Crifo, F., Cross, N. J. G., Crosta, M., Crowley, C., Dafonte, C., Damerdji, Y., Dapergolas, A., David, P., David, M., De Cat, P., De Felice, F., De Laverny, P., De Luise, F., De March, R., De Souza, R., Debosscher, J., Del Pozo, E., Delbo, M., Delgado, A., Delgado, H. E., Di Matteo, P., Diakite, S., Distefano, E., Dolding, C., Dos Anjos, S., Drazinos, P., Duran, J., Dzigan, Y., Edvardsson, B., Enke, H., Evans, N. W., Bontemps, G. Eynard, Fabre, C., Fabrizio, M., Falcao, A. J., Farras Casas, M., Federici, L., Fedorets, G., Fernandez-Hernandez, J., Fernique, P., Fienga, A., Figueras, F., Filippi, F., Findeisen, K., Fonti, A., Fouesneau, M., Fraile, E., Fraser, M., Fuchs, J., Gai, M., Galleti, S., Galluccio, L., Garabato, D., Garcia-Sedano, F., Garralda, N., Gavras, P., Gerssen, J., Geyer, R., Gilmore, G., Girona, S., Giuffrida, G., Gomes, M., Gonzalez-Marcos, A., Gonzalez-Nunez, J., Gonzalez-Vidal, J. J., Granvik, M., Guerrier, A., Guillout, P., Guiraud, J., Gurpide, A., Gutierrez-Sanchez, R., Guy, L. P., Haigron, R., Hatzidimitriou, D., Haywood, M., Heiter, U., Helmi, A., Hobbs, D., Hofmann, W., Holl, B., Holland, G., Hunt, J. A. S., Hypki, A., Icardi, V., Irwin, M., De Fombelle, G. Jevardat, Jofre, P., Jonker, P. G., Jorissen, A., Julbe, F., Karampelas, A., Kochoska, A., Kohley, R., Kolenberg, K., Kontizas, E., Koposov, S. E., Kordopatis, G., Koubsky, P., Krone-Martins, A., Kudryashova, M., Bachchan, R. K., Lacoste-Seris, F., Lanza, A. F., Lavigne, J. -B., Le Poncin-Lafitte, C., Lebreton, Y., Lebzelter, T., Leccia, S., Leclerc, N., Lecoeur-Taibi, I., Lemaitre, V., Lenhardt, H., Leroux, F., Liao, S., Licata, E., Lindstrom, H. E. P., Lister, T. A., Livanou, E., Lobel, A., Loeffler, W., Lopez, M., Lorenz, D., Macdonald, I., Magalhaes Fernandes, T., Managau, S., Mann, R. G., Mantelet, G., Marchal, O., Marchant, J. M., Marinoni, S., Marrese, P. M., Marschalko, G., Marsha, D. J., Martin-Fleitas, J. M., Martino, M., Mary, N., Matijevic, G., Mcmillan, P. J., Messina, S., Michalik, D., Millar, N. R., Miranda, B. M. H., Molina, D., Molinaro, M., Molnar, L., Monicz, M., Montegriffo, P., Mor, R., Mora, A., Morbidelli, R., Morel, T., Morgenthaler, S., Morris, D., Mulone, A. F., Narbonne, J., Nelemans, G., Nicastro, L., Noval, L., Ordenovic, C., Ordieres-Mere, J., Osborne, P., Pagani, C., Pagano, I., Pailler, F., Palacin, H., Palaversa, L., Parsons, P., Pecoraro, M., Pedrosa, R., Pentikainen, H., Pichon, B., Piersimoni, A. M., Pineau, F. -X., Plachy, E., Plum, G., Poujoulet, E., Prsa, A., Pulone, L., Ragaini, S., Rago, S., Rambaux, N., Ramos-Lerate, M., Ranalli, P., Rauw, G., Read, A., Regibo, S., Reyle, C., Ribeiro, R. A., Riva, A., Rixon, G., Roelens, M., Romero-Gomez, M., Rowell, N., Royer, F., Ruiz-Dern, L., Sadowski, G., Selles, T. Sagrista, Sahlmann, J., Salgado, J., Salguero, E., Sarasso, M., Savietto, H., Schultheis, M., Sciacca, E., Segol, M., Segovia, J. C., Segransan, D., Shih, I-C., Smareglia, R., Smart, R. L., Solano, E., Solitro, F., Sordo, R., Soria Nieto, S., Souchay, J., Spagna, A., Spoto, F., Stampa, U., Steele, I. A., Steidelmueller, H., Stephenson, C. A., Stoev, H., Suess, F. F., Suveges, M., Surdej, J., Szegedi-Elek, E., Tapiador, D., Taris, F., Tauran, G., Taylor, M. B., Teixeira, R., Terrett, D., Tingley, B., Trager, S. C., Turon, C., Ulla, A., Utrilla, E., Valentini, G., Van Elteren, A., Van Hemelryck, E., Van Leeuwen, M., Varadi, M., Vecchiato, A., Veljanoski, J., Via, T., Vicente, D., Vogt, S., Voss, H., Votruba, V., Voutsinas, S., Walmsley, G., Weiler, M., Weingrill, K., Wevers, T., Wyrzykowski, L., Yoldas, A., Zerjal, M., Zucker, S., Zurbach, C., Zwitter, T., Alecu, A., Allen, M., Allende Prieto, C., Amorim, A., Anglada-Escude, G., Arsenijevic, V., Azaz, S., Balm, P., Beck, M., Bernsteint, H. -H., Bigot, L., Bijaoui, A., Blasco, C., Bonfigli, M., Bono, G., Boudreault, S., Bressan, A., Brown, S., Brunet, P. -M., Bunclark, P., Buonanno, R., Butkevich, A. G., Carret, C., Carrion, C., Chemin, L., Chereau, F., Corcione, L., Darmigny, E., De Boer, K. S., De Teodoro, P., De Zeeuw, P. T., Delle Luche, C., Domingues, C. D., Dubath, P., Fodor, F., Frezouls, B., Fries, A., Fustes, D., Fyfe, D., Gallardo, E., Gallegos, J., Gardiol, D., Gebran, M., Gomboc, A., Gomez, A., Grux, E., Gueguen, A., Heyrovsky, A., Hoar, J., Iannicola, G., Parache, Y. Isasi, Janotto, A. -M., Joliet, E., Jonckheere, A., Keil, R., Kim, D. -W., Klagyivik, P., Klar, J., Knude, J., Kochukhov, O., Kolka, I., Kos, J., Kutka, A., Lainey, V., Lebouquin, D., Liu, C., Loreggia, D., Makarov, V. V., Marseille, M. G., Martayan, C., Martinez-Rubi, O., Massart, B., Meynadier, F., Mignot, S., Munari, U., Nguyen, A. -T., Nordlander, T., O'Flaherty, K. S., Ocvirk, P., Olias Sanz, A., Ortiz, P., Osorio, J., Oszkiewicz, D., Ouzounis, A., Park, P., Pasquato, E., Peltzer, C., Peralta, J., Peturaud, F., Pieniluoma, T., Pigozzi, E., Poels, J., Prat, G., Prod'Homme, T., Raison, F., Rebordao, J. M., Risquez, D., Rocca-Volmerange, B., Rosen, S., Ruiz-Fuertes, M. I., Russo, F., Serraller Vizcaino, I., Short, A., Siebert, A., Silva, H., Sinachopoulos, D., Slezak, E., Soffel, M., Sosnowska, D., Straizys, V., Ter Linden, M., Terrell, D., Theil, S., Tiede, C., Troisi, L., Tsalmantza, P., Tur, D., Vaccari, M., Vachier, F., Valles, P., Van Hamme, W., Veltz, L., Virtanen, J., Wallut, J. -M., Wichmann, R., Wilkinson, M. I., Ziaeepour, H., Zschocke, S., Gaia Collaboration, and Gaia Collaboration

Subjects
stars: variables: RR Lyrae, variables: Cepheids [stars], Astronomi, astrofysik och kosmologi, Physics, parallaxes, distances [stars], data analysis [methods], stars: distances, Astronomy, Astrophysics and Cosmology, astrometry, methods: data analysis, variables: RR Lyrae [stars], stars: variables: Cepheids
Abstract

Context. Parallaxes for 331 classical Cepheids, 31 Type II Cepheids, and 364 RR Lyrae stars in common between Gaia and the HIPPARCOS and Tycho-2 catalogues are published in Gaia Data Release 1 (DR1) as part of the Tycho-Gaia Astrometric Solution (TGAS). Aims. In order to test these first parallax measurements of the primary standard candles of the cosmological distance ladder, which involve astrometry collected by Gaia during the initial 14 months of science operation, we compared them with literature estimates and derived new period-luminosity (PL), period-Wesenheit (PW) relations for classical and Type II Cepheids and infrared PL, PL-metallicity (PLZ), and optical luminosity-metallicity (MV-[Fe/H]) relations for the RR Lyrae stars, with zero points based on TGAS. Methods. Classical Cepheids were carefully selected in order to discard known or suspected binary systems. The final sample comprises 102 fundamental mode pulsators with periods ranging from 1.68 to 51.66 days (of which 33 with sigma(omega)/omega < 0 : 5). The Type II Cepheids include a total of 26 W Virginis and BL Herculis stars spanning the period range from 1.16 to 30.00 days (of which only 7 with sigma(omega)/omega 0 : 5). The RR Lyrae stars include 200 sources with pulsation period ranging from 0.27 to 0.80 days (of which 112 with sigma(omega)/omega < 0 : 5). The new relations were computed using multi- band (V; I; J; K-s) photometry and spectroscopic metal abundances available in the literature, and by applying three alternative approaches: (i) linear least-squares fitting of the absolute magnitudes inferred from direct transformation of the TGAS parallaxes; (ii) adopting astrometry-based luminosities; and (iii) using a Bayesian fitting approach. The last two methods work in parallax space where parallaxes are used directly, thus maintaining symmetrical errors and allowing negative parallaxes to be used. The TGAS-based PL; PW; PLZ, and MV [Fe/H] relations are discussed by comparing the distance to the Large Magellanic Cloud provided by different types of pulsating stars and alternative fitting methods. Results. Good agreement is found from direct comparison of the parallaxes of RR Lyrae stars for which both TGAS and HST measurements are available. Similarly, very good agreement is found between the TGAS values and the parallaxes inferred from the absolute magnitudes of Cepheids and RR Lyrae stars analysed with the Baade-Wesselink method. TGAS values also compare favourably with the parallaxes inferred by theoretical model fitting of the multi-band light curves for two of the three classical Cepheids and one RR Lyrae star, which were analysed with this technique in our samples. The K-band PL relations show the significant improvement of the TGAS parallaxes for Cepheids and RR Lyrae stars with respect to the HIPPARCOS measurements. This is particularly true for the RR Lyrae stars for which improvement in quality and statistics is impressive. Conclusions. TGAS parallaxes bring a significant added value to the previous HIPPARCOS estimates. The relations presented in this paper represent the first Gaia-calibrated relations and form a work-in-progress milestone report in the wait for Gaia-only parallaxes of which a first solution will become available with Gaia Data Release 2 (DR2) in 2018. Acknowledgements. This work has made use of results from the European Space Agency (ESA) space mission Gaia, the data from which were processed by the Gaia Data Processing and Analysis Consortium (DPAC). Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement. The Gaia mission website is http://www.cosmos.esa.int/gaia. The authors are current or past members of the ESA and Airbus DS Gaia mission teams and of the Gaia DPAC. This research has made use of the SIMBAD database, operated at CDS, Strasbourg, France. We thank the referee, Pierre Kervella, for his detailed comments and suggestions that have helped to improve the paper analysis and presentation. This work has financially been supported by: the Agenzia Spaziale Italiana (ASI) through grants I/037/08/0, I/058/10/0, 2014-025-R.0, and 2014-025-R.1.2015 to INAF and contracts I/008/10/0 and 2013/030/I.0 to ALTEC S.p.A.; the Algerian Centre de Recherche en Astronomic, Astrophysique et Geophysique of Bouzareah Observatory; the Austrian FWF Hertha Firnberg Programme through grants T359, P20046, and P23737; the BELgian federal Science Policy Office (BELSPO) through various PROgramme de Developpement d'Experiences scientifiques (PRODEX) grants; the Brazil-France exchange programmes FAPESP-COFECUB and CAPES-COFECUB; the Chinese National Science Foundation through grant NSFC 11573054; the Czech-Republic Ministry of Education, Youth, and Sports through grant LG 15010; the Danish Ministry of Science; the Estonian Ministry of Education and Research through grant IUT40-1; the European Commission's Sixth Framework Programme through the European Leadership in Space Astrometry (ELSA) Marie Curie Research Training Network (MRTN-CT-2006-033481), through Marie Curie project PIOF-GA-2009-255267 (SAS-RRL), and through a Marie Curie Transfer-of-Knowledge (ToK) fellowship (MTKD-CT-2004-014188); the European Commission's Seventh Framework Programme through grant FP7-606740 (FP7-SPACE-2013-1) for the Gaia European Network for Improved data User Services (GENIUS) and through grant 264895 for the Gaia Research for European Astronomy Training (GREAT-ITN) network; the European Research Council (ERC) through grant 320360 and through the European Union's Horizon 2020 research and innovation programme through grant agreement 670519 (Mixing and Angular Momentum tranSport of massIvE stars - MAMSIE); the European Science Foundation (ESF), in the framework of the Gaia Research for European Astronomy Training Research Network Programme (GREAT-ESF); the European Space Agency in the framework of the Gaia project; the European Space Agency Plan for European Cooperating States (PECS) programme through grants for Slovenia; the Czech Space Office through ESA PECS contract 98058; the Academy of Finland; the Magnus Ehrnrooth Foundation; the French Centre National de la Recherche Scientifique (CNRS) through action "Defi MASTODONS"; the French Centre National d'Etudes Spatiales (CNES); the French L'Agence Nationale de la Recherche (ANR) "investissements d'avenir" Initiatives D'EXcellence (IDEX) programme PSL* through grant ANR-10-IDEX-0001-02; the Region Aquitaine; the Universite de Bordeaux; the French Utinam Institute of the Universite de Franche-Comte, supported by the Region de Franche-Comte and the Institut des Sciences de l'Univers (INSU); the German Aerospace Agency (Deutsches Zentrum fur Luft- and Raumfahrt e.V. , DLR) through grants 50QG0501, 50QG0601, 50QG0602, 50QG0701, 50QG0901, 50QG1001, 50QG1101, 50QG140, 50QG1401, 50QG1402, and 50QG1404; the Hungarian Academy of Sciences through Lendulet Programme LP2014-17; the Hungarian National Research, Development, and Innovation Office through grants NKFIH K-115709, K-119517 and PD-116175; the Israel Ministry of Science and Technology through grant 3-9082; the Italian Istituto Nazionale di Astrofisica (INAF); the Netherlands Organisation for Scientific Research (NWO) through grant NWO-M-614.061.414 and through a VICI grant to A. Helmi; the Netherlands Research School for Astronomy (NOVA); the Polish National Science Centre through HARMONIA grant 2015/18/M/ST9/00544; the Portugese Fundacao para a Ciencia e a Tecnologia (FCT) through grants PTDC/CTE-SPA/118692/2010, PDCTE/CTE-AST/81711/2003, and SFRH/BPD/74697/2010; the Strategic Programmes PEst-OE/AMB/UI4006/2011 for SIM, UID/FIS/00099/2013 for CENTRA, and UID/EEA/00066/2013 for UNINOVA; the Slovenian Research Agency; the Spanish Ministry of Economy MINECO-FEDER through grants AyA2014-55216, AyA2011-24052, E5P2013-48318-C2-R, and E5P2014-55996-C2-R and MDM-2014-0369 of ICCUB (Unidad de Excelencia Maria de Maeztu); the Swedish National Space Board (SNSB/Rymdstyrelsen); the Swiss State Secretariat for Education, Research, and Innovation through the ESA PRODEX programme; the Swiss Mesures d'Accompagnement; the Swiss Activites Nationales Complementaires; the Swiss National Science Foundation, including an Early Postdoc.Mobility fellowship; the United Kingdom Rutherford Appleton Laboratory; the United Kingdom Science and Technology Facilities Council (STFC) through grants PP/C506756/1 and ST/100047X/1; and the United Kingdom Space Agency (UKSA) through grants ST/K000578/1 and ST/N000978/1.

Published
2017

33. Gaia Data Release 1

Author

Brown, A., Vallenari, A., Prusti, T., de Bruijne, J. H.J., Mignard, F., Drimmel, R., Babusiaux, C., Bailer-Jones, C. A.L., Bastian, U., Biermann, M., Evans, D., Eyer, L., Jansen, F., Jordi, C., Katz, D., Klioner, S., Lammers, U., Lindegren, L., Luri, X., O’mullane, W., Panem, C., Pourbaix, D., Randich, S., Sartoretti, P., Siddiqui, H., Soubiran, C., Valette, V., van Leeuwen, F., Walton, N., Aerts, C., Arenou, F., Cropper, M., Høg, E., Lattanzi, M., Grebel, E., Holland, A., Huc, C., Passot, X., Perryman, M., Bramante, L., Cacciari, C., Castañeda, J., Chaoul, L., Cheek, N., de Angeli, F., Fabricius, C., Guerra, R., Hernández, J., Jean-Antoine-Piccolo, A., Masana, E., Messineo, R., Mowlavi, N., Nienartowicz, K., Ordóñez-Blanco, D., Panuzzo, P., Portell, J., Richards, P., Riello, M., Seabroke, G., Tanga, P., Thévenin, F., Torra, J., Els, S., Gracia-Abril, G., Comoretto, G., Garcia-Reinaldos, M., Lock, T., Mercier, E., Altmann, M., Andrae, R., Astraatmadja, T., Bellas-Velidis, I., Benson, K., Berthier, J., Blomme, R., Busso, G., Carry, B., Cellino, A., Clementini, G., Cowell, S., Creevey, O., Cuypers, J., Davidson, M., de Ridder, J., de Torres, A., Delchambre, L., Dell’oro, A., Ducourant, C., Frémat, Y., García-Torres, M., Gosset, E., Halbwachs, J.-L., Hambly, N., Harrison, D., Hauser, M., Hestroffer, D., Hodgkin, S., Huckle, H., Hutton, A., Jasniewicz, G., Jordan, S., Kontizas, M., Korn, A., Lanzafame, A., Manteiga, M., Moitinho, A., Muinonen, K., Osinde, J., Pancino, E., Pauwels, T., Petit, Jean-Marc, Recio-Blanco, A., Robin, Annie C., Sarro, L., Siopis, C., Smith, M., Smith, K., Sozzetti, A., Thuillot, W., van Reeven, W., Viala, Y., Abbas, U., Abreu Aramburu, A., Accart, S., Aguado, J., Allan, P., Allasia, W., Altavilla, G., Álvarez, M., Alves, J., Anderson, R., Andrei, A., Anglada Varela, E., Antiche, E., Antoja, T., Antón, S., Arcay, B., Bach, N., Baker, S., Balaguer-Núñez, L., Barache, C., Barata, C., Barbier, A., Barblan, F., Barrado y Navascués, D., Barros, M., Barstow, M., Becciani, U., Bellazzini, M., Bello García, A., Belokurov, V., Bendjoya, P., Berihuete, A., Bianchi, L., Bienaymé, O., Billebaud, F., Blagorodnova, N., Blanco-Cuaresma, S., Boch, T., Bombrun, A., Borrachero, R., Bouquillon, S., Bourda, G., Bouy, H., Bragaglia, A., Breddels, M., Brouillet, N., Brüsemeister, T., Bucciarelli, B., Burgess, P., Burgon, R., Burlacu, A., Busonero, D., Buzzi, R., Caffau, E., Cambras, J., Campbell, H., Cancelliere, R., Cantat-Gaudin, T., Carlucci, T., Carrasco, J., Castellani, M., Charlot, P., Charnas, J., Chiavassa, A., Clotet, M., Cocozza, G., Collins, R., Costigan, G., Crifo, F., Cross, N. J.G., Crosta, M., Crowley, C., Dafonte, C., Damerdji, Y., Dapergolas, A., David, P., David, M., de Cat, P., de Felice, F., de Laverny, P., de Luise, F., de March, R., de Martino, D., de Souza, R., Debosscher, J., del Pozo, E., Delbo, M., Delgado, A., Delgado, H., Di Matteo, P., Diakite, S., Distefano, E., Dolding, C., dos Anjos, S., Drazinos, P., Duran, J., Dzigan, Y., Edvardsson, B., Enke, H., Evans, N., Eynard Bontemps, G., Fabre, C., Fabrizio, M., Faigler, S., Falcão, A., Farràs Casas, M., Federici, L., Fedorets, G., Fernández-Hernández, J., Fernique, P., Fienga, A., Figueras, F., Filippi, F., Findeisen, K., Fonti, A., Fouesneau, M., Fraile, E., Fraser, M., Fuchs, J., Gai, M., Galleti, S., Galluccio, L., Garabato, D., García-Sedano, F., Garofalo, A., Garralda, N., Gavras, P., Gerssen, J., Geyer, R., Gilmore, G., Girona, S., Giuffrida, G., Gomes, M., González-Marcos, A., González-Núñez, J., González-Vidal, J., Granvik, M., Guerrier, A., Guillout, P., Guiraud, J., Gúrpide, A., Gutiérrez-Sánchez, R., Guy, L., Haigron, R., Hatzidimitriou, D., Haywood, M., Heiter, U., Helmi, A., Hobbs, D., Hofmann, W., Holl, B., Holland, G., Hunt, J. A.S., Hypki, A., Icardi, V., Irwin, M., Jevardat de Fombelle, G., Jofré, P., Jonker, P., Jorissen, A., Julbe, F., Karampelas, A., Kochoska, A., Kohley, R., Kolenberg, K., Kontizas, E., Koposov, S., Kordopatis, G., Koubsky, P., Krone-Martins, A., Kudryashova, M., Kull, I., Bachchan, R., Lacoste-Seris, F., Lanza, A., Lavigne, J.-B., Le Poncin-Lafitte, C., Lebreton, Y., Lebzelter, T., Leccia, S., Leclerc, N., Lecoeur-Taibi, I., Lemaitre, V., Lenhardt, H., Leroux, F., Liao, S., Licata, E., Lindstrøm, H. E.P., Lister, T., Livanou, E., Lobel, A., Löffler, W., López, M., Lorenz, D., Macdonald, I., Magalhães Fernandes, T., Managau, S., Mann, R., Mantelet, G., Marchal, O., Marchant, J., Marconi, M., Marinoni, S., Marrese, P., Marschalkó, G., Marshall, D., Martín-Fleitas, J., Martino, M., Mary, N., Matijevič, G., Mazeh, T., Mcmillan, P., Messina, S., Michalik, D., Millar, N., Miranda, B., Molina, D., Molinaro, R., Molinaro, M., Molnár, L., Moniez, M., Montegriffo, P., Mor, R., Mora, A., Morbidelli, R., Morel, T., Morgenthaler, S., Morris, D., Mulone, A., Muraveva, T., Musella, I., Narbonne, J., Nelemans, G., Nicastro, L., Noval, L., Ordénovic, C., Ordieres-Meré, J., Osborne, P., Pagani, C., Pagano, I., Pailler, F., Palacin, H., Palaversa, L., Parsons, P., Pecoraro, M., Pedrosa, R., Pentikäinen, H., Pichon, B., Piersimoni, A., Pineau, F.-X., Plachy, E., Plum, G., Poujoulet, E., Prša, A., Pulone, L., Ragaini, S., Rago, S., Rambaux, N., Ramos-Lerate, M., Ranalli, P., Rauw, G., Read, A., Regibo, S., Reylé, C., Ribeiro, R., Rimoldini, L., Ripepi, V., Riva, A., Rixon, G., Roelens, M., Romero-Gómez, M., Rowell, N., Royer, F., Ruiz-Dern, L., Sadowski, G., Sagristà Sellés, T., Sahlmann, J., Salgado, J., Salguero, E., Sarasso, M., Savietto, H., Schultheis, M., Sciacca, E., Segol, M., Segovia, J., Segransan, D., Shih, I.-C., Smareglia, R., Smart, R., Solano, E., Solitro, F., Sordo, R., Soria Nieto, S., Souchay, J., Spagna, A., Spoto, F., Stampa, U., Steele, I., Steidelmüller, H., Stephenson, C., Stoev, H., Suess, F., Süveges, M., Surdej, J., Szabados, L., Szegedi-Elek, E., Tapiador, D., Taris, F., Tauran, G., Taylor, M., Teixeira, R., Terrett, D., Tingley, B., Trager, S., Turon, C., Ulla, A., Utrilla, E., Valentini, G., van Elteren, A., van Hemelryck, E., van Leeuwen, M., Varadi, M., Vecchiato, A., Veljanoski, J., Via, T., Vicente, D., Vogt, S., Voss, H., Votruba, V., Voutsinas, S., Walmsley, G., Weiler, M., Weingrill, K., Wevers, T., Wyrzykowski, Ł., Yoldas, A., Žerjal, M., Zucker, S., Zurbach, C., Zwitter, T., Alecu, A., Allen, M., Allende Prieto, C., Amorim, A., Anglada-Escudé, G., Arsenijevic, V., Azaz, S., Balm, P., Beck, M., Bernstein, H.-H., Bigot, L., Bijaoui, A., Blasco, C., Bonfigli, M., Bono, G., Boudreault, S., Bressan, A., Brown, S., Brunet, P.-M., Bunclark, P., Buonanno, R., Butkevich, A., Carret, C., Carrion, C., Chemin, L., Chéreau, F., Corcione, L., Darmigny, E., de Boer, K., de Teodoro, P., de Zeeuw, P., Delle Luche, C., Domingues, C., Dubath, P., Fodor, F., Frézouls, B., Fries, A., Fustes, D., Fyfe, D., Gallardo, E., Gallegos, J., Gardiol, D., Gebran, M., Gomboc, A., Gómez, A., Grux, E., Gueguen, A., Heyrovsky, A., Hoar, J., Iannicola, G., Isasi Parache, Y., Janotto, A.-M., Joliet, E., Jonckheere, A., Keil, R., Kim, D.-W., Klagyivik, P., Klar, J., Knude, J., Kochukhov, O., Kolka, I., Kos, J., Kutka, A., Lainey, V., Lebouquin, D., Liu, C., Loreggia, D., Makarov, V., Marseille, M., Martayan, C., Martinez-Rubi, O., Massart, B., Meynadier, F., Mignot, S., Munari, U., Nguyen, A.-T., Nordlander, T., Ocvirk, P., O’flaherty, K., Olias Sanz, A., Ortiz, P., Osorio, J., Oszkiewicz, D., Ouzounis, A., Palmer, M., Park, P., Pasquato, E., Peltzer, C., Peralta, J., Péturaud, F., Pieniluoma, T., Pigozzi, E., Poels, J., Prat, G., Prod’homme, T., Raison, F., Rebordao, J., Risquez, D., Rocca-Volmerange, B., Rosen, S., Ruiz-Fuertes, M., Russo, F., Sembay, S., Serraller Vizcaino, I., Short, A., Siebert, A., Silva, H., Sinachopoulos, D., Slezak, E., Soffel, M., Sosnowska, D., Straižys, V., ter Linden, M., Terrell, D., Theil, S., Tiede, C., Troisi, L., Tsalmantza, P., Tur, D., Vaccari, M., Vachier, F., Valles, P., van Hamme, W., Veltz, L., Virtanen, J., Wallut, J.-M., Wichmann, R., Wilkinson, M., Ziaeepour, H., Zschocke, S., Leiden Observatory [Leiden], Universiteit Leiden, INAF - Osservatorio Astronomico di Padova (OAPD), Istituto Nazionale di Astrofisica (INAF), ESA Scientific Support Office, Agence Spatiale Européenne = European Space Agency (ESA), Joseph Louis LAGRANGE (LAGRANGE), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de la Côte d'Azur, COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA)-Université Côte d'Azur (UCA)-Centre National de la Recherche Scientifique (CNRS), INAF - Osservatorio Astrofisico di Torino (OATo), Galaxies, Etoiles, Physique, Instrumentation (GEPI), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Max Planck Institute for Astronomy (MPIA), Astronomische Rechen-Institut [Heidelberg] (ARI), Zentrum für Astronomie der Universität Heidelberg (ZAH), Universität Heidelberg [Heidelberg] = Heidelberg University-Universität Heidelberg [Heidelberg] = Heidelberg University, Institut de Ciencies del Cosmos (ICCUB), Universitat de Barcelona (UB), Institut d'Astronomie et d'Astrophysique [Bruxelles] (IAA), Université libre de Bruxelles (ULB), Laboratoire d'Astrophysique de Bordeaux [Pessac] (LAB), Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Univers, Transport, Interfaces, Nanostructures, Atmosphère et environnement, Molécules (UMR 6213) (UTINAM), Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), Observatoire astronomique de Strasbourg (ObAS), Université de Strasbourg (UNISTRA)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre National d'Études Spatiales [Toulouse] (CNES), Observatoire Astronomique de l'Université de Genève (ObsGE), Université de Genève = University of Geneva (UNIGE), Thales Services, THALES [France], Systèmes de Référence Temps Espace (SYRTE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Astrophysics Research Institute [Liverpool] (ARI), Liverpool John Moores University (LJMU), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / 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-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), University of Leicester, Konkoly Observatory, Research Centre for Astronomy and Earth Sciences [Budapest], Hungarian Academy of Sciences (MTA)-Hungarian Academy of Sciences (MTA), Institut de Mécanique Céleste et de Calcul des Ephémérides (IMCCE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Lille-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Royal Observatory of Belgium [Brussels] (ROB), 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), and Leibniz Institute for Astrophysics Potsdam (AIP)

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2016
Full Text
View/download PDF

37. Book reviews

Author

de Hoop, D., Trams, N. R., HoyngHoyngHoyng P., van den Heuvel, E. P. J., Heintze, J. R. W., de Boer, K. S., Greenberg J. Mayo, Koch-Miramond, L., Waters, Rens, van 't Veer, F., Henning, Th., van der Kruit, P. C., Icke, V., and Straižzys, V.

Published
1989
Full Text
View/download PDF

38. Book reviews

Author

Kleczek, J., van der Linden C. H., de Boer, K. S, Koziel Karol, Baldwin, R. B., Jongen, H. F., Lequeux, James, Nieuwenhuysen, H., and Schuurmans, C

Published
1973
Full Text
View/download PDF

42. Can filamentary accretion explain the orbital poles of the Milky Way satellites?

Author

Pawlowski, M. S., Kroupa, P., Angus, G., de Boer, K. S., Famaey, B., and Hensler, G.

Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO), Astrophysics of Galaxies (astro-ph.GA), FOS: Physical sciences, Astrophysics::Earth and Planetary Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics - Astrophysics of Galaxies, Astrophysics::Galaxy Astrophysics, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

Several scenarios have been suggested to explain the phase-space distribution of the Milky Way (MW) satellite galaxies in a disc of satellites (DoS). To quantitatively compare these different possibilities, a new method analysing angular momentum directions in modelled data is presented. It determines how likely it is to find sets of angular momenta as concentrated and as close to a polar orientation as is observed for the MW satellite orbital poles. The method can be easily applied to orbital pole data from different models. The observed distribution of satellite orbital poles is compared to published angular momentum directions of subhalos derived from six cosmological state-of-the-art simulations in the Aquarius project. This tests the possibility that filamentary accretion might be able to naturally explain the satellite orbits within the DoS. For the most likely alignment of main halo and MW disc spin, the probability to reproduce the MW satellite orbital pole properties turns out to be less than 0.5 per cent in Aquarius models. Even an isotropic distribution of angular momenta has a higher likelihood to produce the observed distribution. The two Via Lactea cosmological simulations give results similar to the Aquarius simulations. Comparing instead with numerical models of galaxy-interactions gives a probability of up to 90 per cent for some models to draw the observed distribution of orbital poles from the angular momenta of tidal debris. This indicates that the formation as tidal dwarf galaxies in a single encounter is a viable, if not the only, process to explain the phase-space distribution of the MW satellite galaxies., 14 pages, 4 figures, 3 tables. Accepted for publication in MNRAS

Published
2012

43. Karl Marx: Critique as Emancipatory Practice

Author

Celikates, R., de Boer, K., Sonderegger, R., and ASCA (FGw)

Abstract

Critique of philosophy, critique of religion, critique of politics, critique of political economy - there is almost no sphere of modern society of which Karl Marx’s theory does not offer a critique. This makes it all the more necessary to investigate whether these different critiques possess any common traits, be it with respect to their aims or their methods. In what follows, I argue that Marx’s notion of critique is unified by three characteristics and that it is still relevant for contemporary critical theory if understood as practice rather than as science. First, Marx’s critique is always at the same time a critique of forms of knowledge and of the forms of practice that correspond to them. Second, it is practical and emancipatory in the sense that it aims not only to understand, but also to contribute to a transformation of the social world that is already under way. Third, Marx follows Hegel in rejecting the dichotomy between internal and external critique and in opting instead for what can be called immanent critique. His version of immanent critique focuses on the internal contradictions and crises of a specific social order (modern capitalist society) and its social imaginary. Accordingly, it cannot be reduced to a purely normative undertaking, but involves empirical analyses of both a historical and a sociological kind. In Marx’s theory, analysis and critique are thus inextricably linked. With regard to these three characteristics, Marx’s conception of critique became paradigmatic for the tradition of critical theory and continues to be so up until today.

Published
2012

49. ORFEUS II Echelle spectra: Molecular hydrogen at high velocities toward HD 93521

Author

Gringel, W., Barnstedt, J., de Boer, K. S., Grewing, M., Kappelmann, N., and Richter, P.

Subjects
Astrophysics (astro-ph), FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Astrophysics::Galaxy Astrophysics
Abstract

Absorption lines of interstellar molecular hydrogen in the far ultraviolet (FUV) have been observed in the spectrum of the O9.5 halo star HD 93521, located some 1500 pc from the Galactic plane. During the second flight of the ORFEUS-SPAS mission a spectrum with the Echelle spectrometer has been recorded with a total integration time of 1740 s. The resolution achieved was about 10.000 with a signal-to-noise ratio of up to 25. For the first time two components of molecular hydrogen have been observed in absorption at velocities of -12 km/s in the Galactic disk and at -62 km/s located presumably in the Galactic halo. The column densities derived from a standard curve of growth analysis were found to be N(H_2) = 10^17.0 cm^-2 for the disk component and N(H_2) = 10^14.6 cm^-2 respectively for the component located in the Galactic halo., 4 pages, 5 figures, accepted for publication in A&A Letters

Published
2000

50. ORFEUS II echelle spectra: deuterium and molecular hydrogen in the ISM towards BD +39 3226

Author

Bluhm, H., Marggraf, O., de Boer, K. S., Richter, P., and Heber, U.

Subjects
Astrophysics (astro-ph), FOS: Physical sciences, Astrophysics
Abstract

In ORFEUS II spectra of the sdO star BD +39 3226 interstellar hydrogen and deuterium is detected. From Ly alpha profile fitting and a curve of growth analysis of the Lyman series of H I and D I we derive the column densities N(H)=1.20(+0.28/-0.22)*10^20 cm^(-2) and N(D)=1.45(+0.50/-0.38)*10^(15) cm^(-2). From the analysis of metal absorption lines in ORFEUS and IUE spectra we obtain column densities for 11 elements. In addition, we examine absorption lines of H_2 for rotational excitation states up to J=7. We find an H_2 ortho-to-para ratio of 2.5, the fractional abundance of molecular hydrogen has a low value of log f=-4.08 for a total amount of N(H_2)=4.8(+2.0/-1.6)*10^15 cm^(-2). The column densities of the excitation states reveal a moderate Boltzmann excitation temperature of 130 K and an equivalent excitation temperature for the excited upper states due to UV pumping of, 10 pages, 10 figures, accepted for publication in A&A main journal

Published
1999

Catalog

Books, media, physical & digital resources
See catalog results