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16 results on '"Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna"'

1. Planck intermediate results

Author

Akrami, Y., Ashdown, M., Aumont, J., Baccigalupi, C., Ballardini, M., Banday, A. J., Barreiro, R. B., Bartolo, N., Basak, S., Benabed, K., Bernard, J. P., Bersanelli, M., Bielewicz, P., Bond, J. R., Borrill, J., Bouchet, F. R., Burigana, C., Calabrese, E., Cardoso, J. F., Casaponsa, B., Chiang, H. C., Combet, C., Contreras, D., Crill, B. P., Cuttaia, F., De Bernardis, P., De Rosa, A., De Zotti, G., Delabrouille, J., Di Valentino, E., Diego, J. M., Doré, O., Douspis, M., Dupac, X., Enßlin, T. A., Eriksen, H. K., Fernandez-Cobos, R., Finelli, F., Frailis, M., Franceschi, E., Frolov, A., Galeotta, S., Galli, S., Ganga, K., Génova-Santos, R. T., Gerbino, M., González-Nuevo, J., Górski, K. M., Gruppuso, A., Gudmundsson, J. E., Handley, W., Herranz, D., Hivon, E., Huang, Z., Jaffe, A. H., Jones, W. C., Keihänen, E., Keskitalo, R., Kiiveri, K., Kim, Jaiseung, Kisner, T. S., Krachmalnicoff, N., Kunz, M., Kurki-Suonio, H., Lamarre, J. M., Lattanzi, M., Lawrence, C. R., Le Jeune, M., Levrier, F., Liguori, M., Lilje, P. B., Lindholm, V., López-Caniego, M., Maciás-Pérez, J. F., Maino, D., Mandolesi, N., Marcos-Caballero, A., Maris, M., Martin, P. G., Martínez-González, E., Matarrese, S., Mauri, N., McEwen, J. D., Mennella, A., Migliaccio, M., Molinari, D., Moneti, A., Montier, L., Morgante, G., Moss, A., Natoli, P., Pagano, L., Paoletti, D., Perrotta, F., Pettorino, V., Piacentini, F., Polenta, G., Rachen, J. P., Reinecke, M., Remazeilles, M., Renzi, A., Roha, G., Roset, C., Rubiño-Martín, J. A., Ruiz-Granados, B., Salvati, L., Savelainen, M., Scott, D., Sirignano, C., Sirri, G., Spencer, L. D., Sullivan, R. M., Sunyaev, R., Suur-Uski, A. S., Tauber, J. A., Tavagnacco, D., Tenti, M., Toffolatti, L., Tomasi, M., Trombetti, T., Valiviita, J., Van Tent, B., Vielva, P., Villa, F., Vittorio, N., Wehus, I. K., Zacchei, A., Zonca, A., École normale supérieure, University of Cambridge, Université Paul Sabatier, International School for Advanced Studies, University of the Western Cape, IRAP, Universidad de Cantabria, University of Padova, Indian Institute of Science Education and Research Thiruvananthapuram, Institut d 'Astrophysique de Paris, University of Milano, National Centre for Nuclear Research, University of Toronto, Lawrence Berkeley National Laboratory, University of Ferrara, Cardiff University, University of KwaZulu-Natal, Institut national de physique nucléaire et de physique des particules, York University Toronto, California Institute of Technology, National Research Council of Italy, Sapienza University of Rome, INAF - Osservatorio Astronomico di Padova, Université Pierre and Marie Curie, University of Manchester, Université Paris-Sud, European Space Astronomy Centre, Max-Planck-Institut für Astrophysik, University of Oslo, Osservatorio Astronomico di Trieste, Simon Fraser University, University of La Laguna, United States Department of Energy, University of Oviedo, Jet Propulsion Laboratory, Princeton University, Sun Yat-Sen University, Imperial College London, University of Helsinki, African Institute for Mathematical Sciences, UMR7095, National Institute for Nuclear Physics, University College London, University of Rome Tor Vergata, University of Nottingham, Université Paris-Saclay, Agenzia Spaziale Italiana, Radboud University Nijmegen, IFPU - Institute for Fundamental Physics of the Universe, Department of Applied Physics, University of British Columbia, European Space Research and Technology Centre, Università Degli Studi di Trieste, Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, University of California San Diego, Aalto-yliopisto, and Aalto University

Subjects
Reference systems, Relativistic processes, Astrophysics::Instrumentation and Methods for Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Computer Science::Computational Geometry, Cosmic background radiation, observations [Cosmology]
Abstract

The largest temperature anisotropy in the cosmic microwave background (CMB) is the dipole, which has been measured with increasing accuracy for more than three decades, particularly with the Planck satellite. The simplest interpretation of the dipole is that it is due to our motion with respect to the rest frame of the CMB. Since current CMB experiments infer temperature anisotropies from angular intensity variations, the dipole modulates the temperature anisotropies with the same frequency dependence as the thermal Sunyaev-Zeldovich (tSZ) effect. We present the first, and significant, detection of this signal in the tSZ maps and find that it is consistent with direct measurements of the CMB dipole, as expected. The signal contributes power in the tSZ maps, which is modulated in a quadrupolar pattern, and we estimate its contribution to the tSZ bispectrum, noting that it contributes negligible noise to the bispectrum at relevant scales.

Published
2020

2. LVII. Joint Planck LFI and HFI data processing

Author

Akrami, Y., Andersen, K. J., Ashdown, M., Baccigalupi, C., Ballardini, M., Banday, A. J., Barreiro, R. B., Bartolo, N., Basak, S., Benabed, K., Bernard, J. P., Bersanelli, M., Bielewicz, P., Bond, J. R., Borrill, J., Burigana, C., Butler, R. C., Calabrese, E., Casaponsa, B., Chiang, H. C., Colombo, L. P.L., Combet, C., Crill, B. P., Cuttaia, F., De Bernardis, P., De Rosa, A., De Zotti, G., Delabrouille, J., DI Valentino, E., DIego, J. M., Doré, O., Douspis, M., Dupac, X., Eriksen, H. K., Fernandez-Cobos, R., Finelli, F., Frailis, M., Fraisse, A. A., Franceschi, E., Frolov, A., Galeotta, S., Galli, S., Ganga, K., Gerbino, M., Ghosh, T., González-Nuevo, J., Górski, K. M., Gruppuso, A., Gudmundsson, J. E., Handley, W., Helou, G., Herranz, D., Hildebrandt, S. R., Hivon, E., Huang, Z., Jaffe, A. H., Jones, W. C., Keihänen, E., Keskitalo, R., Kiiveri, K., Kim, Jaiseung, Kisner, T. S., Krachmalnicoff, N., Kunz, M., Kurki-Suonio, H., Lasenby, A., Lattanzi, M., Lawrence, C. R., Le Jeune, M., Levrier, F., Liguori, M., Lilje, P. B., Lilley, M., Lindholm, V., López-Caniego, M., Lubin, P. M., MacÍas-Pérez, J. F., Maino, D., Mandolesi, N., Marcos-Caballero, A., Maris, M., Martin, P. G., Martínez-González, E., Matarrese, S., Mauri, N., McEwen, J. D., Meinhold, P. R., Mennella, A., Migliaccio, M., Mitra, S., Molinari, D., Montier, L., Morgante, G., Moss, A., Natoli, P., Paoletti, D., Partridge, B., Patanchon, G., Pearson, D., Pearson, T. J., Perrotta, F., Piacentini, F., Polenta, G., Rachen, J. P., Reinecke, M., Remazeilles, M., Renzi, A., Rocha, G., Rosset, C., Roudier, G., Rubiño-Martín, J. A., Ruiz-Granados, B., Salvati, L., Savelainen, M., Scott, D., Sirignano, C., Sirri, G., Spencer, L. D., Suur-Uski, A. S., Svalheim, L. T., Tauber, J. A., Tavagnacco, D., Tenti, M., Terenzi, L., Thommesen, H., Toffolatti, L., Tomasi, M., Tristram, M., Trombetti, T., Valiviita, J., Van Tent, B., Vielva, P., Villa, F., Vittorio, N., Wandelt, B. D., Wehus, I. K., Zacchei, A., Zonca, A., École normale supérieure, University of Oslo, University of Cambridge, International School for Advanced Studies, University of the Western Cape, IRAP, Universidad de Cantabria, University of Padova, Indian Institute of Science Education and Research Thiruvananthapuram, Institut d 'Astrophysique de Paris, University of Milano, National Centre for Nuclear Research, University of Toronto, Lawrence Berkeley National Laboratory, University of Ferrara, National Research Council of Italy, Cardiff University, University of KwaZulu-Natal, Institut national de physique nucléaire et de physique des particules, California Institute of Technology, Sapienza University of Rome, INAF - Osservatorio Astronomico di Padova, Université Pierre and Marie Curie, University of Manchester, Université Paris-Sud, European Space Astronomy Centre, Osservatorio Astronomico di Trieste, Princeton University, Simon Fraser University, United States Department of Energy, University of Oviedo, Jet Propulsion Laboratory, Sun Yat-Sen University, Imperial College London, University of Helsinki, Max-Planck-Institut für Astrophysik, African Institute for Mathematical Sciences, UMR7095, University of California Santa Barbara, National Institute for Nuclear Physics, University College London, University of Rome Tor Vergata, Inter-University Centre for Astronomy and Astrophysics India, University of Nottingham, Haverford College, Agenzia Spaziale Italiana, Radboud University Nijmegen, University of La Laguna, Department of Applied Physics, University of British Columbia, European Space Research and Technology Centre, Università Degli Studi di Trieste, Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, University of California San Diego, Aalto-yliopisto, and Aalto University

Subjects
Cosmological parameters, Astrophysics::Instrumentation and Methods for Astrophysics, Cosmic background radiation, observations [Cosmology], data analysis [Methods], general [Galaxy]
Abstract

We present the NPIPE processing pipeline, which produces calibrated frequency maps in temperature and polarization from data from the Planck Low Frequency Instrument (LFI) and High Frequency Instrument (HFI) using high-performance computers. NPIPE represents a natural evolution of previous Planck analysis efforts, and combines some of the most powerful features of the separate LFI and HFI analysis pipelines. For example, following the LFI 2018 processing procedure, NPIPE uses foreground polarization priors during the calibration stage in order to break scanning-induced degeneracies. Similarly, NPIPE employs the HFI 2018 time-domain processing methodology to correct for bandpass mismatch at all frequencies. In addition, NPIPE introduces several improvements, including, but not limited to: inclusion of the 8% of data collected during repointing manoeuvres; smoothing of the LFI reference load data streams; in-flight estimation of detector polarization parameters; and construction of maximally independent detector-set split maps. For component-separation purposes, important improvements include: maps that retain the CMB Solar dipole, allowing for high-precision relative calibration in higher-level analyses; well-defined single-detector maps, allowing for robust CO extraction; and HFI temperature maps between 217 and 857 GHz that are binned into 0′.9 pixels (Nside = 4096), ensuring that the full angular information in the data is represented in the maps even at the highest Planck resolutions. The net effect of these improvements is lower levels of noise and systematics in both frequency and component maps at essentially all angular scales, as well as notably improved internal consistency between the various frequency channels. Based on the NPIPE maps, we present the first estimate of the Solar dipole determined through component separation across all nine Planck frequencies. The amplitude is (3366.6 ± 2.7) μK, consistent with, albeit slightly higher than, earlier estimates. From the large-scale polarization data, we derive an updated estimate of the optical depth of reionization of τ = 0.051 ± 0.006, which appears robust with respect to data and sky cuts. There are 600 complete signal, noise and systematics simulations of the full-frequency and detector-set maps. As a Planck first, these simulations include full time-domain processing of the beam-convolved CMB anisotropies. The release of NPIPE maps and simulations is accompanied with a complete suite of raw and processed time-ordered data and the software, scripts, auxiliary data, and parameter files needed to improve further on the analysis and to run matching simulations.\ud\udKey words: cosmic background radiation / cosmology: observations / cosmological parameters / Galaxy: general / methods: data analysis

Published
2020

3. Planck 2018 results

Author

Aghanim, N., Akrami, Y., Ashdown, M., Aumont, J., Baccigalupi, C., Ballardini, M., Banday, A. J., Barreiro, R. B., Bartolo, N., Basak, S., Battye, R., Benabed, K., Bernard, J.-P., Bersanelli, M., Bielewicz, P., Bock, J. J., Bond, J. R., Borrill, J., Bouchet, F. R., Boulanger, F., Bucher, M., Burigana, C., Butler, R. C., Calabrese, E., Cardoso, J.-F., Carron, J., Challinor, A., Chiang, H. C., Chluba, J., Colombo, L. P. L., Combet, C., Contreras, D., Crill, B. P., Cuttaia, F., de Bernardis, P., de Zotti, G., Delabrouille, J., Delouis, J.-M., Di Valentino, E., Diego, J. M., Doré, O., Douspis, M., Ducout, A., Dupac, X., Dusini, S., Efstathiou, G., Elsner, F., Enßlin, T. A., Eriksen, H. K., Fantaye, Y., Farhang, M., Fergusson, J., Fernandez-Cobos, R., Finelli, F., Forastieri, F., Frailis, M., Fraisse, A. A., Franceschi, E., Frolov, A., Galeotta, S., Galli, S., Ganga, K., Génova-Santos, R. T., Gerbino, M., Ghosh, T., González-Nuevo, J., Górski, K. M., Gratton, S., Gruppuso, A., Gudmundsson, J. E., Hamann, J., Handley, W., Hansen, F. K., Herranz, D., Hildebrandt, S. R., Hivon, E., Huang, Z., Jaffe, A. H., Jones, W. C., Karakci, A., Keihänen, E., Keskitalo, R., Kiiveri, K., Kim, J., Kisner, T. S., Knox, L., Krachmalnicoff, N., Kunz, M., Kurki-Suonio, H., Lagache, G., Lamarre, J.-M., Lasenby, A., Lattanzi, M., Lawrence, C. R., Le Jeune, M., Lemos, P., Lesgourgues, J., Levrier, F., Lewis, A., Liguori, M., Lilje, P. B., Lilley, M., Lindholm, V., López-Caniego, M., Lubin, P. M., Ma, Y.-Z., Macías-Pérez, J. F., Maggio, G., Maino, D., Mandolesi, N., Mangilli, A., Marcos-Caballero, A., Maris, M., Martin, P. G., Martinelli, M., Martínez-González, E., Matarrese, S., Mauri, N., McEwen, J. D., Meinhold, P. R., Melchiorri, A., Mennella, A., Migliaccio, M., Millea, M., Mitra, S., Miville-Deschênes, M.-A., Molinari, D., Montier, L., Morgante, G., Moss, A., Natoli, P., Nørgaard-Nielsen, H. U., Pagano, L., Paoletti, D., Partridge, B., Patanchon, G., Peiris, H. V., Perrotta, F., Pettorino, V., Piacentini, F., Polastri, L., Polenta, G., Puget, J.-L., Rachen, J. P., Reinecke, M., Remazeilles, M., Renzi, A., Rocha, G., Rosset, C., Roudier, G., Rubiño-Martín, J. A., Ruiz-Granados, B., Salvati, L., Sandri, M., Savelainen, M., Scott, D., Shellard, E. P. S., Sirignano, C., Sirri, G., Spencer, L. D., Sunyaev, R., Suur-Uski, A.-S., Tauber, J. A., Tavagnacco, D., Tenti, M., Toffolatti, L., Tomasi, M., Trombetti, T., Valenziano, L., Valiviita, J., Van Tent, B., Vibert, L., Vielva, P., Villa, F., Vittorio, N., Wandelt, B. D., Wehus, I. K., White, M., White, S. D. M., Zacchei, A., Zonca, A., Université Paris-Sud, École normale supérieure, University of Cambridge, Université Paul Sabatier, International School for Advanced Studies, University of the Western Cape, IRAP, Universidad de Cantabria, University of Padova, Indian Institute of Science Education and Research Thiruvananthapuram, University of Manchester, Institut d 'Astrophysique de Paris, University of Milano, National Centre for Nuclear Research, California Institute of Technology, University of Toronto, Lawrence Berkeley National Laboratory, Université Pierre and Marie Curie, University of Ferrara, National Research Council of Italy, Cardiff University, University of Sussex, University of KwaZulu-Natal, Institut national de physique nucléaire et de physique des particules, University of British Columbia, Sapienza University of Rome, INAF - Osservatorio Astronomico di Padova, Université de Bretagne Occidentale, The University of Tokyo, European Space Astronomy Centre, National Institute for Nuclear Physics, Max-Planck-Institut für Astrophysik, University of Oslo, African Institute for Mathematical Sciences, Shahid Beheshti University, Osservatorio Astronomico di Trieste, Princeton University, Simon Fraser University, University of La Laguna, United States Department of Energy, Department of Applied Physics, University of Oviedo, Jet Propulsion Laboratory, University of New South Wales, Sun Yat-Sen University, Imperial College London, University of Helsinki, University of California Davis, CNRS, UMR7095, RWTH Aachen University, University of California Santa Barbara, Heidelberg University, University College London, University of Rome Tor Vergata, Inter-University Centre for Astronomy and Astrophysics India, Université Paris-Saclay, University of Nottingham, Technical University of Denmark, Haverford College, Agenzia Spaziale Italiana, Radboud University Nijmegen, European Space Research and Technology Centre, Università Degli Studi di Trieste, Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, University of California Berkeley, University of California San Diego, Aalto-yliopisto, and Aalto University

Subjects
Cosmological parameters, Astrophysics::Cosmology and Extragalactic Astrophysics, Cosmic background radiation
Abstract

We present cosmological parameter results from the final full-mission Planck measurements of the cosmic microwave background (CMB) anisotropies, combining information from the temperature and polarization maps and the lensing reconstruction. Compared to the 2015 results, improved measurements of large-scale polarization allow the reionization optical depth to be measured with higher precision, leading to significant gains in the precision of other correlated parameters. Improved modelling of the small-scale polarization leads to more robust constraints on many parameters, with residual modelling uncertainties estimated to affect them only at the 0.5σ level. We find good consistency with the standard spatially-flat 6-parameter ΛCDM cosmology having a power-law spectrum of adiabatic scalar perturbations (denoted "base ΛCDM"in this paper), from polarization, temperature, and lensing, separately and in combination. A combined analysis gives dark matter density ωch2 = 0.120 ± 0.001, baryon density ωbh2 = 0.0224 ± 0.0001, scalar spectral index ns = 0.965 ± 0.004, and optical depth τ = 0.054 ± 0.007 (in this abstract we quote 68% confidence regions on measured parameters and 95% on upper limits). The angular acoustic scale is measured to 0.03% precision, with 100θ∗ = 1.0411 ± 0.0003. These results are only weakly dependent on the cosmological model and remain stable, with somewhat increased errors, in many commonly considered extensions. Assuming the base-ΛCDM cosmology, the inferred (model-dependent) late-Universe parameters are: Hubble constant H0 = (67.4 ± 0.5) km s-1 Mpc-1; matter density parameter ωm = 0.315 ± 0.007; and matter fluctuation amplitude σ8 = 0.811 ± 0.006. We find no compelling evidence for extensions to the base-ΛCDM model. Combining with baryon acoustic oscillation (BAO) measurements (and considering single-parameter extensions) we constrain the effective extra relativistic degrees of freedom to be Neff = 2.99 ± 0.17, in agreement with the Standard Model prediction Neff = 3.046, and find that the neutrino mass is tightly constrained to mν < 0.12 eV. The CMB spectra continue to prefer higher lensing amplitudes than predicted in base ΛCDM at over 2σ, which pulls some parameters that affect the lensing amplitude away from the ΛCDM model; however, this is not supported by the lensing reconstruction or (in models that also change the background geometry) BAO data. The joint constraint with BAO measurements on spatial curvature is consistent with a flat universe, ωK = 0.001 ± 0.002. Also combining with Type Ia supernovae (SNe), the dark-energy equation of state parameter is measured to be w0 = -1.03 ± 0.03, consistent with a cosmological constant. We find no evidence for deviations from a purely power-law primordial spectrum, and combining with data from BAO, BICEP2, and Keck Array data, we place a limit on the tensor-to-scalar ratio r0.002 < 0.06. Standard big-bang nucleosynthesis predictions for the helium and deuterium abundances for the base-ΛCDM cosmology are in excellent agreement with observations. The Planck base-ΛCDM results are in good agreement with BAO, SNe, and some galaxy lensing observations, but in slight tension with the Dark Energy Survey's combined-probe results including galaxy clustering (which prefers lower fluctuation amplitudes or matter density parameters), and in significant, 3.6σ, tension with local measurements of the Hubble constant (which prefer a higher value). Simple model extensions that can partially resolve these tensions are not favoured by the Planck data.

Published
2020

4. Planck 2018 results

Author

Akrami, Y., Arroja, F., Ashdown, M., Aumont, J., Baccigalupi, C., Ballardini, M., Banday, A. J., Barreiro, R. B., Bartolo, N., Basak, S., Benabed, K., Bernard, J.-P., Bersanelli, M., Bielewicz, P., Bond, J. R., Borrill, J., Bouchet, F. R., Bucher, M., Burigana, C., Butler, R. C., Calabrese, E., Cardoso, J.-F., Casaponsa, B., Challinor, A., Chiang, H. C., Colombo, L. P. L., Combet, C., Crill, B. P., Cuttaia, F., de Bernardis, P., de Rosa, A., de Zotti, G., Delabrouille, J., Delouis, J.-M., Di Valentino, E., Diego, J. M., Doré, O., Douspis, M., Ducout, A., Dupac, X., Dusini, S., Efstathiou, G., Elsner, F., Enßlin, T. A., Eriksen, H. K., Fantaye, Y., Fergusson, J., Fernandez-Cobos, R., Finelli, F., Frailis, M., Fraisse, A. A., Franceschi, E., Frolov, A., Galeotta, S., Galli, S., Ganga, K., Génova-Santos, R. T., Gerbino, M., González-Nuevo, J., Górski, K. M., Gratton, S., Gruppuso, A., Gudmundsson, J. E., Hamann, J., Handley, W., Hansen, F. K., Herranz, D., Hivon, E., Huang, Z., Jaffe, A. H., Jones, W. C., Jung, G., Keihänen, E., Keskitalo, R., Kiiveri, K., Kim, J., Krachmalnicoff, N., Kunz, M., Kurki-Suonio, H., Lamarre, J.-M., Lasenby, A., Lattanzi, M., Lawrence, C. R., Le Jeune, M., Levrier, F., Lewis, A., Liguori, M., Lilje, P. B., Lindholm, V., López-Caniego, M., Ma, Y.-Z., Macías-Pérez, J. F., Maggio, G., Maino, D., Mandolesi, N., Marcos-Caballero, A., Maris, M., Martin, P. G., Martínez-González, E., Matarrese, S., Mauri, N., McEwen, J. D., Meerburg, P. D., Meinhold, P. R., Melchiorri, A., Mennella, A., Migliaccio, M., Miville-Deschênes, M.-A., Molinari, D., Moneti, A., Montier, L., Morgante, G., Moss, A., Münchmeyer, M., Natoli, P., Oppizzi, F., Pagano, L., Paoletti, D., Partridge, B., Patanchon, G., Perrotta, F., Pettorino, V., Piacentini, F., Polenta, G., Puget, J.-L., Rachen, J. P., Racine, B., Reinecke, M., Remazeilles, M., Renzi, A., Rocha, G., Rubiño-Martín, J. A., Ruiz-Granados, B., Salvati, L., Savelainen, M., Scott, D., Shellard, E. P. S., Shiraishi, M., Sirignano, C., Sirri, G., Smith, K., Spencer, L. D., Stanco, L., Sunyaev, R., Suur-Uski, A.-S., Tauber, J. A., Tavagnacco, D., Tenti, M., Toffolatti, L., Tomasi, M., Trombetti, T., Valiviita, J., Van Tent, B., Vielva, P., Villa, F., Vittorio, N., Wandelt, B. D., Wehus, I. K., Zacchei, A., Zonca, A., École normale supérieure, University of Lisbon, University of Cambridge, Université Paul Sabatier, International School for Advanced Studies, University of the Western Cape, IRAP, Universidad de Cantabria, University of Padova, Indian Institute of Science Education and Research Thiruvananthapuram, Institut d 'Astrophysique de Paris, University of Milano, National Centre for Nuclear Research, University of Toronto, Lawrence Berkeley National Laboratory, Université Pierre and Marie Curie, University of Ferrara, National Research Council of Italy, Cardiff University, University of KwaZulu-Natal, Institut national de physique nucléaire et de physique des particules, California Institute of Technology, Sapienza University of Rome, INAF - Osservatorio Astronomico di Padova, Université de Bretagne Occidentale, University of Manchester, Université Paris-Sud, The University of Tokyo, European Space Astronomy Centre, National Institute for Nuclear Physics, Max-Planck-Institut für Astrophysik, University of Oslo, African Institute for Mathematical Sciences, Osservatorio Astronomico di Trieste, Princeton University, Simon Fraser University, University of La Laguna, United States Department of Energy, University of Oviedo, Jet Propulsion Laboratory, University of New South Wales, Sun Yat-Sen University, Imperial College London, University of Helsinki, UMR7095, University of Sussex, University College London, University of California Santa Barbara, University of Rome Tor Vergata, Université Paris-Saclay, University of Nottingham, Haverford College, Agenzia Spaziale Italiana, Radboud University Nijmegen, Department of Applied Physics, University of British Columbia, Perimeter Institute for Theoretical Physics, European Space Research and Technology Centre, Università Degli Studi di Trieste, Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, University of California San Diego, Aalto-yliopisto, and Aalto University

Subjects
theory [Cosmology], Astrophysics::Cosmology and Extragalactic Astrophysics, Cosmic background radiation, observations [Cosmology], data analysis [Methods], Early Universe, Inflation
Abstract

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: flocal NL = −0.9±5.1; fequil NL = −26±47; and fortho NL = −38±24 (68% CL, statistical). These resultsinclude low-multipole (4 ≤ ` < 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). Polarizationonly 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 nonprimordial lensing bispectrum is, however, detected with an improved significance compared to 2015, excluding the null hypothesis at 3.5σ. Beyondestimatesofindividualshapeamplitudes,wealsopresentmodel-independentreconstructionsandanalysesofthePlanckCMBbispectrum. Our final constraint on the local primordial trispectrum shape is glocal NL = (−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 spaceofdifferentearly-UniversescenariosthatgenerateprimordialNG,includinggeneralsingle-fieldmodelsofinflation,multi-fieldmodels(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 completeagreementwiththebasicpictureofthe ΛCDMcosmologyregardingthestatisticsoftheinitialconditions,withcosmicstructuresarising from adiabatic, passive, Gaussian, and primordial seed perturbations. Key words. cosmic background radiation – cosmology: observations – cosmology: theory – early Universe – inflation – methods: data analysis

Published
2020

5. Planck 2018 results

Author

Akrami, Y., Ashdown, M., Aumont, J., Baccigalupi, C., Ballardini, M., Banday, A. J., Barreiro, R. B., Bartolo, N., Basak, S., Benabed, K., Bernard, J. P., Bersanelli, M., Bielewicz, P., Bond, J. R., Borrill, J., Bouchet, F. R., Boulanger, F., Bracco, A., Bucher, M., Burigana, C., Calabrese, E., Cardoso, J. F., Carron, J., Chiang, H. C., Combet, C., Crill, B. P., De Bernardis, P., De Zotti, G., Delabrouille, J., Delouis, J. M., Di Valentino, E., Dickinson, C., Diego, J. M., Ducout, A., Dupac, X., Efstathiou, G., Elsner, F., Enßlin, T. A., Falgarone, E., Fantaye, Y., Ferrière, K., Finelli, F., Forastieri, F., Frailis, M., Fraisse, A. A., Franceschi, E., Frolov, A., Galeotta, S., Galli, S., Ganga, K., Génova-Santos, R. T., Ghosh, T., González-Nuevo, J., Górski, K. M., Gruppuso, A., Gudmundsson, J. E., Guillet, V., Handley, W., Hansen, F. K., Herranz, D., Huang, Z., Jaffe, A. H., Jones, W. C., Keihänen, E., Keskitalo, R., Kiiveri, K., Kim, J., Krachmalnicoff, N., Kunz, M., Kurki-Suonio, H., Lamarre, J. M., Lasenby, A., Le Jeune, M., Levrier, F., Liguori, M., Lilje, P. B., Lindholm, V., López-Caniego, M., Lubin, P. M., Ma, Y. Z., Maciás-Pérez, J. F., Maggio, G., Maino, D., Mandolesi, N., Mangilli, A., Martin, P. G., Martínez-González, E., Matarrese, S., McEwen, J. D., Meinhold, P. R., Melchiorri, A., Migliaccio, M., Miville-Deschênes, M. A., Molinari, D., Moneti, A., Montier, L., Morgante, G., Natoli, P., Pagano, L., Paoletti, D., Pettorino, V., Piacentini, F., Polenta, G., Puget, J. L., Rachen, J. P., Reinecke, M., Remazeilles, M., Renzi, A., Rocha, G., Rosset, C., Roudier, G., Rubiño-Martín, J. A., Ruiz-Granados, B., Salvati, L., Sandri, M., Savelainen, M., Scott, D., Soler, J. D., Spencer, L. D., Tauber, J. A., Tavagnacco, D., Toffolatti, L., Tomasi, M., Trombetti, T., Valiviita, J., Vansyngel, F., Van Tent, B., Vielva, P., Villa, F., Vittorio, N., Wehus, I. K., Zacchei, A., Zonca, A., Leiden University, University of Cambridge, Université Paul Sabatier, International School for Advanced Studies, University of the Western Cape, IRAP, Universidad de Cantabria, University of Padova, Indian Institute of Science Education and Research Thiruvananthapuram, Institut d 'Astrophysique de Paris, University of Milano, University of Toronto, Lawrence Berkeley National Laboratory, Université Paris-Sud, Université Pierre and Marie Curie, University of Ferrara, Cardiff University, University of Sussex, University of KwaZulu-Natal, Institut national de physique nucléaire et de physique des particules, California Institute of Technology, Sapienza University of Rome, INAF - Osservatorio Astronomico di Padova, University of Manchester, The University of Tokyo, European Space Astronomy Centre, Max-Planck-Institut für Astrophysik, UMR7095, African Institute for Mathematical Sciences, National Research Council of Italy, Osservatorio Astronomico di Trieste, Princeton University, Simon Fraser University, University of Chicago, University of La Laguna, University of Oviedo, Jet Propulsion Laboratory, University of Oslo, Sun Yat-Sen University, Imperial College London, University of Helsinki, University of California Santa Barbara, Department of Applied Physics, University College London, University of Rome Tor Vergata, Université Paris-Saclay, Agenzia Spaziale Italiana, Radboud University Nijmegen, National Institute for Nuclear Physics, University of British Columbia, Max Planck Institute for Astronomy, European Space Research and Technology Centre, Università Degli Studi di Trieste, Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, University of California San Diego, Aalto-yliopisto, and Aalto University

Subjects
Polarization, Astrophysics::Instrumentation and Methods for Astrophysics, magnetic fields [ISM], diffuse background [Submillimeter], Dust, Astrophysics::Cosmology and Extragalactic Astrophysics, Extinction, structure [ISM], Cosmic background radiation, Astrophysics::Galaxy Astrophysics
Abstract

The study of polarized dust emission has become entwined with the analysis of the cosmic microwave background (CMB) polarization in the quest for the curl-like B-mode polarization from primordial gravitational waves and the low-multipole E-mode polarization associated with the reionization of the Universe. We used the new Planck PR3 maps to characterize Galactic dust emission at high latitudes as a foreground to the CMB polarization and use end-to-end simulations to compute uncertainties and assess the statistical significance of our measurements. We present Planck EE, BB, and TE power spectra of dust polarization at 353 GHz for a set of six nested high-Galactic-latitude sky regions covering from 24 to 71% of the sky. We present power-law fits to the angular power spectra, yielding evidence for statistically significant variations of the exponents over sky regions and a difference between the values for the EE and BB spectra, which for the largest sky region are αEE = -2.42 ± 0.02 and αBB = -2.54 ± 0.02, respectively. The spectra show that the TE correlation and E/B power asymmetry discovered by Planck extend to low multipoles that were not included in earlier Planck polarization papers due to residual data systematics. We also report evidence for a positive TB dust signal. Combining data from Planck and WMAP, we have determined the amplitudes and spectral energy distributions (SEDs) of polarized foregrounds, including the correlation between dust and synchrotron polarized emission, for the six sky regions as a function of multipole. This quantifies the challenge of the component-separation procedure that is required for measuring the low-ℓ reionization CMB E-mode signal and detecting the reionization and recombination peaks of primordial CMB B modes. The SED of polarized dust emission is fit well by a single-temperature modified black-body emission law from 353 GHz to below 70 GHz. For a dust temperature of 19.6 K, the mean dust spectral index for dust polarization is βdP = 1.53±0.02. The difference between indices for polarization and total intensity is βdP-βdI = 0.05±0.03. By fitting multi-frequency cross-spectra between Planck data at 100, 143, 217, and 353 GHz, we examine the correlation of the dust polarization maps across frequency. We find no evidence for a loss of correlation and provide lower limits to the correlation ratio that are tighter than values we derive from the correlation of the 217- and 353 GHz maps alone. If the Planck limit on decorrelation for the largest sky region applies to the smaller sky regions observed by sub-orbital experiments, then frequency decorrelation of dust polarization might not be a problem for CMB experiments aiming at a primordial B-mode detection limit on the tensor-to-scalar ratio r≃ 0.01 at the recombination peak. However, the Planck sensitivity precludes identifying how difficult the component-separation problem will be for more ambitious experiments targeting lower limits on r.

Published
2020

6. Planck 2018 results: II. Low Frequency Instrument data processing

Author

Akrami, Y., Argüeso, F., Ashdown, M., Aumont, J., Baccigalupi, C., Ballardini, M., Banday, A. J., Barreiro, R. B., Bartolo, N., Basak, S., Benabed, K., Bernard, J. P., Bersanelli, M., Bielewicz, P., Bonavera, L., Bond, J. R., Borrill, J., Bouchet, F. R., Boulanger, F., Bucher, M., Burigana, C., Butler, R. C., Calabrese, E., Cardoso, J. F., Colombo, L. P.L., Crill, B. P., Cuttaia, F., De Bernardis, P., De Rosa, A., De Zotti, G., Delabrouille, J., Di Valentino, E., Dickinson, C., Diego, J. M., Donzelli, S., Ducout, A., Dupac, X., Efstathiou, G., Elsner, F., Enßlin, T. A., Eriksen, H. K., Fantaye, Y., Finelli, F., Frailis, M., Franceschi, E., Frolov, A., Galeotta, S., Galli, S., Ganga, K., Génova-Santos, R. T., Gerbino, M., Ghosh, T., González-Nuevo, J., Górski, K. M., Gratton, S., Gruppuso, A., Gudmundsson, J. E., Handley, W., Hansen, F. K., Herranz, D., Hivon, E., Huang, Z., Jaffe, A. H., Jones, W. C., Karakci, A., Keihänen, E., Keskitalo, R., Kiiveri, K., Kim, Jaiseung, Kisner, T. S., Krachmalnicoff, N., Kunz, M., Kurki-Suonio, H., Lamarre, J. M., Lasenby, A., Lattanzi, M., Lawrence, C. R., Leahy, J. P., Levrier, F., Liguori, M., Lilje, P. B., Lindholm, V., López-Caniego, M., Ma, Y. Z., Maciás-Pérez, J. F., Maggio, G., Maino, D., Mandolesi, N., Mangilli, A., Maris, M., Martin, P. G., Martínez-González, E., Matarrese, S., Mauri, N., McEwen, J. D., Meinhold, P. R., Melchiorri, A., Mennella, A., Migliaccio, M., Molinari, D., Montier, L., Morgante, G., Moss, A., Natoli, P., Pagano, L., Paoletti, D., Partridge, B., Patanchon, G., Patrizii, L., Peel, M., Perrotta, F., Pettorino, V., Piacentini, F., Polenta, G., Puget, J. L., Rachen, J. P., Racine, B., Reinecke, M., Remazeilles, M., Renzi, A., Rocha, G., Roudier, G., Rubiño-Martín, J. A., Salvati, L., Sandri, M., Savelainen, M., Scott, D., Seljebotn, D. S., Sirignano, C., Sirri, G., Spencer, L. D., Suur-Uski, A. S., Tauber, J. A., Tavagnacco, D., Tenti, M., Terenzi, L., Toffolatti, L., Tomasi, M., Trombetti, T., Valiviita, J., Vansyngel, F., Van Tent, B., Vielva, P., Villa, F., Vittorio, N., Wandelt, B. D., Watson, R., Wehus, I. K., Zacchei, A., Zonca, A., Astrophysique, Laboratoire de physique de l'ENS - ENS Paris (LPENS), 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 Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), 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), 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), Università degli studi di Parma = University of Parma (UNIPR), Canadian Institute for Theoretical Astrophysics (CITA), Lawrence Berkeley National Laboratory [Berkeley] (LBNL), Patrimoine, Littérature, Histoire (PLH), Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université de Toulouse (UT), 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 Paris Cité (UPCité), Universidade Aberta [Lisboa], Dipartimento di Fisica [Roma La Sapienza], Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome] (UNIROMA), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Laboratory for Phytosanitary Diagnostics and Forecasts, All-Russian Institute for Plant Protection, Russian Academy of Sciences [Moscow] (RAS), 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), Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), 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)), Institut national des sciences de l'Univers (INSU - CNRS)-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-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), ICRA and Physics Department, 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 'G. Galilei', Università degli Studi di Padova = University of Padua (Unipd), 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), 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], Venetian Institute Molecular Medicine (VIMM), University of British Columbia (UBC), 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), School of Psychology, University of Queensland [Brisbane], Planck Collaboration, 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), 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), University of Parma = Università degli studi di Parma [Parme, Italie], Laboratoire de Recherche en Informatique (LRI), CentraleSupélec-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), CentraleSupélec, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome], Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Université Paris-Sud - Paris 11 (UP11)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées, 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, Universita degli Studi di Padova, 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), Laboratoire de neurobiologie cellulaire et moléculaire (NBCM), Centre National de la Recherche Scientifique (CNRS), Leiden University, University of Oviedo, University of Cambridge, Université Paul Sabatier, International School for Advanced Studies, University of the Western Cape, IRAP, Universidad de Cantabria, University of Padova, Indian Institute of Science Education and Research Thiruvananthapuram, Institut d 'Astrophysique de Paris, University of Milano, University of Toronto, Lawrence Berkeley National Laboratory, Université Paris-Sud, Université Pierre and Marie Curie, University of Ferrara, National Research Council of Italy, Cardiff University, California Institute of Technology, Sapienza University of Rome, INAF - Osservatorio Astronomico di Padova, University of Manchester, Imperial College London, European Space Astronomy Centre, Max-Planck-Institut für Astrophysik, University of Oslo, African Institute for Mathematical Sciences, Osservatorio Astronomico di Trieste, Simon Fraser University, University of Chicago, University of La Laguna, Stockholm University, Cahill Center for Astronomy and Astrophysics, Jet Propulsion Laboratory, Princeton University, Sun Yat-Sen University, University of Helsinki, Observatoire de Paris, Institut national de physique nucléaire et de physique des particules, National Institute for Nuclear Physics, University College London, University of California Santa Barbara, University of Rome Tor Vergata, University of Nottingham, Haverford College, Universidade de São Paulo, Université Paris-Saclay, Agenzia Spaziale Italiana, Radboud University Nijmegen, Department of Applied Physics, University of British Columbia, European Space Research and Technology Centre, Università Degli Studi di Trieste, Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, University of Illinois at Urbana-Champaign, University of California San Diego, Aalto-yliopisto, and Aalto University

Subjects
instruments [Space vehicles], cosmic background radiation, space vehicles: instruments, Cosmic background radiation, data analysis [Methods], [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], methods: data analysis
Abstract

International audience; We present a final description of the data-processing pipeline for the Planck Low Frequency Instrument (LFI), implemented for the 2018 data release. Several improvements have been made with respect to the previous release, especially in the calibration process and in the correction of instrumental features such as the effects of nonlinearity in the response of the analogue-to-digital converters. We provide a brief pedagogical introduction to the complete pipeline, as well as a detailed description of the important changes implemented. Self-consistency of the pipeline is demonstrated using dedicated simulations and null tests. We present the final version of the LFI full sky maps at 30, 44, and 70 GHz, both in temperature and polarization, together with a refined estimate of the solar dipole and a final assessment of the main LFI instrumental parameters.

Published
2020
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7. Planck 2018 results

Author

Aghanim, N., Akrami, Y., Ashdown, M., Aumont, J., Baccigalupi, C., Ballardini, M., Banday, A. J., Barreiro, R. B., Bartolo, N., Basak, S., Benabed, K., Bernard, J. P., Bersanelli, M., Bielewicz, P., Bock, J. J., Bond, J. R., Borrill, J., Bouchet, F. R., Boulanger, F., Bucher, M., Burigana, C., Calabrese, E., Cardoso, J. F., Carron, J., Challinor, A., Chiang, H. C., Colombo, L. P.L., Combet, C., Crill, B. P., Cuttaia, F., De Bernardis, P., De Zotti, G., Delabrouille, J., Di Valentino, E., Diego, J. M., Doré, O., Douspis, M., Ducout, A., Dupac, X., Efstathiou, G., Elsner, F., Enßlin, T. A., Eriksen, H. K., Fantaye, Y., Fernandez-Cobos, R., Finelli, F., Forastieri, F., Frailis, M., Fraisse, A. A., Franceschi, E., Frolov, A., Galeotta, S., Galli, S., Ganga, K., Génova-Santos, R. T., Gerbino, M., Ghosh, T., González-Nuevo, J., Górski, K. M., Gratton, S., Gruppuso, A., Gudmundsson, J. E., Hamann, J., Handley, W., Hansen, F. K., Herranz, D., Hivon, E., Huang, Z., Jaffe, A. H., Jones, W. C., Karakci, A., Keihänen, E., Keskitalo, R., Kiiveri, K., Kim, Jaiseung, Knox, L., Krachmalnicoff, N., Kunz, M., Kurki-Suonio, H., Lagache, G., Lamarre, J. M., Lasenby, A., Lattanzi, M., Lawrence, C. R., Le Jeune, M., Levrier, F., Lewis, A., Liguori, M., Lilje, P. B., Lindholm, V., López-Caniego, M., Lubin, P. M., Ma, Y. Z., Maciás-Pérez, J. F., Maggio, G., Maino, D., Mandolesi, N., Mangilli, A., Marcos-Caballero, A., Maris, M., Martin, P. G., Martínez-González, E., Matarrese, S., Mauri, N., McEwen, J. D., Melchiorri, A., Mennella, A., Migliaccio, M., Miville-Deschênes, M. A., Molinari, D., Moneti, A., Montier, L., Morgante, G., Moss, A., Natoli, P., Pagano, L., Paoletti, D., Partridge, B., Patanchon, G., Perrotta, F., Pettorino, V., Piacentini, F., Polastri, L., Polenta, G., Puget, J. L., Rachen, J. P., Reinecke, M., Remazeilles, M., Renzi, A., Rocha, G., Rosset, C., Roudier, G., Rubiño-Martín, J. A., Ruiz-Granados, B., Salvati, L., Sandri, M., Savelainen, M., Scott, D., Sirignano, C., Sunyaev, R., Suur-Uski, A. S., Tauber, J. A., Tavagnacco, D., Tenti, M., Toffolatti, L., Tomasi, M., Trombetti, T., Valiviita, J., Van Tent, B., Vielva, P., Villa, F., Vittorio, N., Wandelt, B. D., Wehus, I. K., White, Martin J., White, S. D.M., Zacchei, A., Zonca, A., Université Paris-Sud, École normale supérieure, University of Cambridge, Université Paul Sabatier, International School for Advanced Studies, University of the Western Cape, IRAP, Universidad de Cantabria, University of Padova, Indian Institute of Science Education and Research Thiruvananthapuram, Institut d 'Astrophysique de Paris, University of Milano, National Centre for Nuclear Research, California Institute of Technology, University of Toronto, Lawrence Berkeley National Laboratory, Université Pierre and Marie Curie, University of Ferrara, Cardiff University, University of Sussex, University of KwaZulu-Natal, Institut national de physique nucléaire et de physique des particules, National Research Council of Italy, Sapienza University of Rome, INAF - Osservatorio Astronomico di Padova, University of Manchester, The University of Tokyo, European Space Astronomy Centre, Max-Planck-Institut für Astrophysik, University of Oslo, African Institute for Mathematical Sciences, Osservatorio Astronomico di Trieste, Princeton University, Simon Fraser University, University of La Laguna, United States Department of Energy, Cahill Center for Astronomy and Astrophysics, University of Oviedo, Jet Propulsion Laboratory, University of New South Wales, Sun Yat-Sen University, Imperial College London, University of Helsinki, University of California Davis, CNRS, UMR7095, University of California Santa Barbara, National Institute for Nuclear Physics, University College London, University of Rome Tor Vergata, Université Paris-Saclay, University of Nottingham, Haverford College, Agenzia Spaziale Italiana, Radboud University Nijmegen, Department of Applied Physics, University of British Columbia, European Space Research and Technology Centre, Università Degli Studi di Trieste, Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, University of California Berkeley, University of California San Diego, Aalto-yliopisto, and Aalto University

Subjects
Large-scale structure of Universe, Cosmological parameters, Astrophysics::Cosmology and Extragalactic Astrophysics, Cosmic background radiation, observations [Cosmology], weak [Gravitational lensing]
Abstract

We present measurements of the cosmic microwave background (CMB) lensing potential using the final Planck 2018 temperature and polarization data. Using polarization maps filtered to account for the noise anisotropy, we increase the significance of the detection of lensing in the polarization maps from 5σ to 9σ. Combined with temperature, lensing is detected at 40σ. We present an extensive set of tests of the robustness of the lensingpotential power spectrum, and construct a minimum-variance estimator likelihood over lensing multipoles 8 ≤ L ≤ 400 (extending the range to lower L compared to 2015), which we use to constrain cosmological parameters. We find good consistency between lensing constraints and the results from the Planck CMB power spectra within the σCDM model. Combined with baryon density and other weak priors, the lensing analysis alone constrains σ8Ω0.25m= 0.589 ± 0.020 (1σ errors). Also combining with baryon acoustic oscillation data, we find tight individual parameter constraints, σ8 = 0.811 ± 0.019, H0 = 67.9+1.2-1.3km s-1Mpc-1, and m = 0.303+0.016-0.018. Combining with Planck CMB power spectrum data, we measure σ8 to better than 1% precision, finding σ8 = 0.811 ± 0.006. CMB lensing reconstruction data are complementary to galaxy lensing data at lower redshift, having a different degeneracy direction in σ8 - m space; we find consistency with the lensing results from the Dark Energy Survey, and give combined lensing-only parameter constraints that are tighter than joint results using galaxy clustering. Using the Planck cosmic infrared background (CIB) maps as an additional tracer of high-redshift matter, we make a combined Planck-only estimate of the lensing potential over 60% of the sky with considerably more small-scale signal.We additionally demonstrate delensing of the Planck power spectra using the joint and individual lensing potential estimates, detecting a maximum removal of 40% of the lensing-induced power in all spectra. The improvement in the sharpening of the acoustic peaks by including both CIB and the quadratic lensing reconstruction is detected at high significance.

Published
2020

8. Planck 2018 results: V. CMB power spectra and likelihoods

Author

Aghanim, N., Akrami, Yashar, Ashdown, M., Aumont, J., Baccigalupi, C., Ballardini, M., Banday, A. J., Barreiro, R. B., Bartolo, N., Basak, S., Benabed, K., Bernard, J.-P., Bersanelli, M., Bielewicz, P., Bock, J. J., Bond, J. R., Borrill, J., Bouchet, F. R., Boulanger, F., Bucher, M., Burigana, C., Butler, R. C., Calabrese, E., Cardoso, J.-F., Carron, J., Casaponsa, B., Challinor, A., Chiang, H. C., Colombo, L. P. L., Combet, C., Crill, B. P., Cuttaia, F., De Bernardis, P., De Rosa, A., De Zotti, G., Delabrouille, J., Delouis, J.-M., Di Valentino, E., Diego, J. M., Doré, O., Douspis, M., Ducout, A., Dupac, X., Dusini, S., Efstathiou, G., Elsner, F., Enßlin, T. A., Eriksen, H. K., Fantaye, Y., Fernandez-Cobos, R., Finelli, F., Frailis, M., Fraisse, A. A., Franceschi, E., Frolov, A., Galeotta, S., Galli, S., Ganga, K., Génova-Santos, R. T., Gerbino, M., Ghosh, T., Giraud-Héraud, Y., González-Nuevo, J., Górski, K. M., Gratton, Serge, Gruppuso, A., Gudmundsson, J. E., Hamann, J., Handley, W., Hansen, F. K., Herranz, D., Hivon, E., Huang, Z., Jaffe, A. H., Jones, W. C., Keihänen, E., Keskitalo, R., Kiiveri, K., Kim, J., Kisner, T. S., Krachmalnicoff, N., Kunz, M., Kurki-Suonio, H., Lagache, G., Lamarre, J.-M., Lasenby, A., Lattanzi, M., Lawrence, C. R., Le Jeune, M., Levrier, F., Lewis, A., Liguori, M., Lilje, P. B., Lilley, M., Lindholm, V., López-Caniego, M., Lubin, P. M., Ma, Y.-Z., Macías-Pérez, J. F., Maggio, G., Maino, D., Mandolesi, N., Mangilli, A., Marcos-Caballero, A., Maris, M., Martin, P. G., Martínez-González, E., Matarrese, S., Mauri, N., McEwen, J. D., Meinhold, P. R., Melchiorri, A., Mennella, A., Migliaccio, M., Millea, M., Miville-Deschênes, M.-A., Molinari, D., Moneti, A., Montier, L., Morgante, G., Moss, A., Natoli, P., Nørgaard-Nielsen, H. U., Pagano, L., Paoletti, D., Partridge, B., Patanchon, G., Peiris, H. V., Perrotta, F., Pettorino, V., Piacentini, F., Polenta, G., Puget, J.-L., Rachen, J. P., Reinecke, M., Remazeilles, M., Renzi, A., Rocha, G., Rosset, C., Roudier, G., Rubiño-Martín, J. A., Ruiz-Granados, B., Salvati, L., Sandri, M., Savelainen, M., Scott, D., Shellard, E. P. S., Sirignano, C., Sirri, G., Spencer, L. D., Sunyaev, R., Suur-Uski, A.-S., Tauber, J. A., Tavagnacco, D., Tenti, M., Toffolatti, L., Tomasi, M., Trombetti, T., Valiviita, J., Van Tent, B., Vielva, P., Villa, F., Vittorio, N., Wandelt, B. D., Wehus, I. K., Zacchei, A., Zonca, A., Université Paris-Sud, École normale supérieure, University of Cambridge, Université Paul Sabatier, International School for Advanced Studies, University of the Western Cape, IRAP, Universidad de Cantabria, University of Padova, Indian Institute of Science Education and Research Thiruvananthapuram, Institut d 'Astrophysique de Paris, University of Milano, National Centre for Nuclear Research, California Institute of Technology, University of Toronto, Lawrence Berkeley National Laboratory, Université Pierre and Marie Curie, University of Ferrara, National Research Council of Italy, Cardiff University, University of Sussex, University of KwaZulu-Natal, Institut national de physique nucléaire et de physique des particules, Sapienza University of Rome, INAF - Osservatorio Astronomico di Padova, Université de Bretagne Occidentale, University of Manchester, The University of Tokyo, European Space Astronomy Centre, National Institute for Nuclear Physics, Max-Planck-Institut für Astrophysik, University of Oslo, African Institute for Mathematical Sciences, Osservatorio Astronomico di Trieste, Princeton University, Simon Fraser University, University of La Laguna, United States Department of Energy, Cahill Center for Astronomy and Astrophysics, University of Oviedo, Jet Propulsion Laboratory, University of New South Wales, Sun Yat-Sen University, Imperial College London, University of Helsinki, CNRS, UMR7095, University of California Santa Barbara, University College London, University of Rome Tor Vergata, University of California Davis, Université Paris-Saclay, University of Nottingham, Technical University of Denmark, Haverford College, Agenzia Spaziale Italiana, Radboud University Nijmegen, Department of Applied Physics, University of British Columbia, European Space Research and Technology Centre, Università Degli Studi di Trieste, Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, University of California San Diego, Aalto-yliopisto, Aalto University, 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, Laboratoire de physique de l'ENS - ENS Paris (LPENS), 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 Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), 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), 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), Computing and Mathematical Sciences [Pasadena]], California Institute of Technology (CALTECH), Canadian Institute for Theoretical Astrophysics (CITA), Lawrence Berkeley National Laboratory [Berkeley] (LBNL), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Centre National d’Études Spatiales [Paris] (CNES), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA), 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), 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 Paris Cité (UPCité), 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] (UNIROMA), Laboratoire d'Océanographie Physique et Spatiale (LOPS), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), Jet Propulsion Laboratory (JPL), NASA-California Institute of Technology (CALTECH), Max-Planck-Institut für Astronomie (MPIA), Max-Planck-Gesellschaft, Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA (UMR_8112)), Institut national des sciences de l'Univers (INSU - CNRS)-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-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Dipartimento di Fisica 'G. Galilei', Università degli Studi di Padova = University of Padua (Unipd), Institut Lagrange de Paris, 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), University College of London [London] (UCL), University of Manchester [Manchester], University of British Columbia (UBC), 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-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)-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), 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), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), 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), Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome], Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS), 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, Universita degli Studi di Padova, Sorbonne Université (SU), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), and 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)

Subjects
cosmology: observations, Cosmological parameters, cosmic background radiation, cosmological parameters, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Cosmic background radiation, observations [Cosmology], data analysis [Methods], methods: data analysis
Abstract

International audience; We describe the legacy Planck cosmic microwave background (CMB) likelihoods derived from the 2018 data release. The overall approach is similar in spirit to the one retained for the 2013 and 2015 data release, with a hybrid method using different approximations at low (ℓ < 30) and high (ℓ ≥ 30) multipoles, implementing several methodological and data-analysis refinements compared to previous releases. With more realistic simulations, and better correction and modelling of systematic effects, we can now make full use of the CMB polarization observed in the High Frequency Instrument (HFI) channels. The low-multipole EE cross-spectra from the 100 GHz and 143 GHz data give a constraint on the ΛCDM reionization optical-depth parameter τ to better than 15% (in combination with the TT low-ℓ data and the high-ℓ temperature and polarization data), tightening constraints on all parameters with posterior distributions correlated with τ. We also update the weaker constraint on τ from the joint TEB likelihood using the Low Frequency Instrument (LFI) channels, which was used in 2015 as part of our baseline analysis. At higher multipoles, the CMB temperature spectrum and likelihood are very similar to previous releases. A better model of the temperature-to-polarization leakage and corrections for the effective calibrations of the polarization channels (i.e., the polarization efficiencies) allow us to make full use of polarization spectra, improving the ΛCDM constraints on the parameters θMC, ωc, ωb, and H0 by more than 30%, and ns by more than 20% compared to TT-only constraints. Extensive tests on the robustness of the modelling of the polarization data demonstrate good consistency, with some residual modelling uncertainties. At high multipoles, we are now limited mainly by the accuracy of the polarization efficiency modelling. Using our various tests, simulations, and comparison between different high-multipole likelihood implementations, we estimate the consistency of the results to be better than the 0.5 σ level on the ΛCDM parameters, as well as classical single-parameter extensions for the joint likelihood (to be compared to the 0.3 σ levels we achieved in 2015 for the temperature data alone on ΛCDM only). Minor curiosities already present in the previous releases remain, such as the differences between the best-fit ΛCDM parameters for the ℓ < 800 and ℓ > 800 ranges of the power spectrum, or the preference for more smoothing of the power-spectrum peaks than predicted in ΛCDM fits. These are shown to be driven by the temperature power spectrum and are not significantly modified by the inclusion of the polarization data. Overall, the legacy Planck CMB likelihoods provide a robust tool for constraining the cosmological model and represent a reference for future CMB observations.

Published
2020
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9. Planck 2018 results

Author

Aghanim, N., Akrami, Y., Arroja, F., Ashdown, M., Aumont, J., Baccigalupi, C., Ballardini, M., Banday, A. J., Barreiro, R. B., Bartolo, N., Basak, S., Battye, R., Benabed, K., Bernard, J.-P., Bersanelli, M., Bielewicz, P., Bock, J. J., Bond, J. R., Borrill, J., Bouchet, F. R., Boulanger, F., Bucher, M., Burigana, C., Butler, R. C., Calabrese, E., Cardoso, J.-F., Carron, J., Casaponsa, B., Challinor, A., Chiang, H. C., Colombo, L. P. L., Combet, C., Contreras, D., Crill, B. P., Cuttaia, F., de Bernardis, P., de Zotti, G., Delabrouille, J., Delouis, J.-M., Désert, F.-X., Di Valentino, E., Dickinson, C., Diego, J. M., Donzelli, S., Doré, O., Douspis, M., Ducout, A., Dupac, X., Efstathiou, G., Elsner, F., Enßlin, T. A., Eriksen, H. K., Falgarone, E., Fantaye, Y., Fergusson, J., Fernandez-Cobos, R., Finelli, F., Forastieri, F., Frailis, M., Franceschi, E., Frolov, A., Galeotta, S., Galli, S., Ganga, K., Génova-Santos, R. T., Gerbino, M., Ghosh, T., González-Nuevo, J., Górski, K. M., Gratton, S., Gruppuso, A., Gudmundsson, J. E., Hamann, J., Handley, W., Hansen, F. K., Helou, G., Herranz, D., Hildebrandt, S. R., Hivon, E., Huang, Z., Jaffe, A. H., Jones, W. C., Karakci, A., Keihänen, E., Keskitalo, R., Kiiveri, K., Kim, J., Kisner, T. S., Knox, L., Krachmalnicoff, N., Kunz, M., Kurki-Suonio, H., Lagache, G., Lamarre, J.-M., Langer, M., Lasenby, A., Lattanzi, M., Lawrence, C. R., Le Jeune, M., Leahy, J. P., Lesgourgues, J., Levrier, F., Lewis, A., Liguori, M., Lilje, P. B., Lilley, M., Lindholm, V., López-Caniego, M., Lubin, P. M., Ma, Y.-Z., Macías-Pérez, J. F., Maggio, G., Maino, D., Mandolesi, N., Mangilli, A., Marcos-Caballero, A., Maris, M., Martin, P. G., Martinelli, M., Martínez-González, E., Matarrese, S., Mauri, N., McEwen, J. D., Meerburg, P. D., Meinhold, P. R., Melchiorri, A., Mennella, A., Migliaccio, M., Millea, M., Mitra, S., Miville-Deschênes, M.-A., Molinari, D., Moneti, A., Montier, L., Morgante, G., Moss, A., Mottet, S., Münchmeyer, M., Natoli, P., Nørgaard-Nielsen, H. U., Oxborrow, C. A., Pagano, L., Paoletti, D., Partridge, B., Patanchon, G., Pearson, T. J., Peel, M., Peiris, H. V., Perrotta, F., Pettorino, V., Piacentini, F., Polastri, L., Polenta, G., Puget, J.-L., Rachen, J. P., Reinecke, M., Remazeilles, M., Renault, C., Renzi, A., Rocha, G., Rosset, C., Roudier, G., Rubiño-Martín, J. A., Ruiz-Granados, B., Salvati, L., Sandri, M., Savelainen, M., Scott, D., Shellard, E. P. S., Shiraishi, M., Sirignano, C., Sirri, G., Spencer, L. D., Sunyaev, R., Suur-Uski, A.-S., Tauber, J. A., Tavagnacco, D., Tenti, M., Terenzi, L., Toffolatti, L., Tomasi, M., Trombetti, T., Valiviita, J., Van Tent, B., Vibert, L., Vielva, P., Villa, F., Vittorio, N., Wandelt, B. D., Wehus, I. K., White, M., White, S. D. M., Zacchei, A., Zonca, A., Université Paris-Sud, Leiden University, University of Lisbon, University of Cambridge, Université Paul Sabatier, International School for Advanced Studies, University of the Western Cape, IRAP, Universidad de Cantabria, University of Padova, Indian Institute of Science Education and Research Thiruvananthapuram, University of Manchester, Institut d 'Astrophysique de Paris, University of Milano, California Institute of Technology, University of Toronto, Lawrence Berkeley National Laboratory, Université Pierre and Marie Curie, University of Ferrara, National Research Council of Italy, Cardiff University, University of Sussex, University of KwaZulu-Natal, Institut national de physique nucléaire et de physique des particules, University of British Columbia, Sapienza University of Rome, INAF - Osservatorio Astronomico di Padova, The University of Tokyo, European Space Astronomy Centre, Max-Planck-Institut für Astrophysik, University of Oslo, UMR7095, African Institute for Mathematical Sciences, Osservatorio Astronomico di Trieste, Simon Fraser University, University of Chicago, University of La Laguna, Stockholm University, Cahill Center for Astronomy and Astrophysics, University of Oviedo, Jet Propulsion Laboratory, Princeton University, University of New South Wales, Sun Yat-Sen University, Imperial College London, University of Helsinki, University of California Davis, CNRS, RWTH Aachen University, University of California Santa Barbara, Heidelberg University, National Institute for Nuclear Physics, University College London, University of Rome Tor Vergata, Inter-University Centre for Astronomy and Astrophysics India, Université Paris-Saclay, University of Nottingham, Technical University of Denmark, Haverford College, Universidade de São Paulo, Agenzia Spaziale Italiana, Radboud University Nijmegen, Department of Applied Physics, European Space Research and Technology Centre, Università Degli Studi di Trieste, Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, University of Illinois at Urbana-Champaign, University of California Berkeley, University of California San Diego, Aalto-yliopisto, and Aalto University

Subjects
theory [Cosmology], Astrophysics::Cosmology and Extragalactic Astrophysics, Surveys, Cosmic background radiation, observations [Cosmology]
Abstract

The European Space Agency's Planck satellite, which was dedicated to studying the early Universe and its subsequent evolution, was launched on 14 May 2009. It scanned the microwave and submillimetre sky continuously between 12 August 2009 and 23 October 2013, producing deep, high-resolution, all-sky maps in nine frequency bands from 30 to 857 GHz. This paper presents the cosmological legacy of Planck, which currently provides our strongest constraints on the parameters of the standard cosmological model and some of the tightest limits available on deviations from that model. The 6-parameter ΛCDM model continues to provide an excellent fit to the cosmic microwave background data at high and low redshift, describing the cosmological information in over a billion map pixels with just six parameters. With 18 peaks in the temperature and polarization angular power spectra constrained well, Planck measures five of the six parameters to better than 1% (simultaneously), with the best-determined parameter (θ∗) now known to 0.03%. We describe the multi-component sky as seen by Planck, the success of the ΛCDM model, and the connection to lower-redshift probes of structure formation. We also give a comprehensive summary of the major changes introduced in this 2018 release. The Planck data, alone and in combination with other probes, provide stringent constraints on our models of the early Universe and the large-scale structure within which all astrophysical objects form and evolve. We discuss some lessons learned from the Planck mission, and highlight areas ripe for further experimental advances.

Published
2020
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10. Planck intermediate results

Author

Ade, P. A. R., Aghanim, N., Arnaud, M., Ashdown, M., Aubourg, E., Aumont, J., Baccigalupi, C., Banday, A. J., Barreiro, R. B., Bartolo, N., Battaner, E., Benabed, K., Benoit-Levy, A., Bersanelli, M., Bielewicz, P., Bock, J. J., Bonaldi, A., Bonavera, L., Bond, J. R., Borrill, J., Bouchet, F. R., Burigana, C., Calabrese, E., Cardoso, J. -F., Catalano, A., Chamballu, A., Chiang, H. C., Christensen, P. R., Clements, D. L., Colombo, L. P. L., Combet, C., Crill, B. P., Curto, A., Cuttaia, F., Danese, L., Davies, R. D., Davis, R. J., de Bernardis, P., de Zotti, G., Delabrouille, J., Dickinson, C., Diego, J. M., Dolag, K., Donzelli, S., Doré, O., Douspis, M., Ducout, A., Dupac, X., Leon-Tavares, J., Savelainen, M., Planck Collaboration, University of Oslo, University of Cambridge, Université Paris-Sud, International School for Advanced Studies, University of Bologna, CNRS, CSIC, University of Padova, Institut d 'Astrophysique de Paris, University of Milan, University of Oviedo, University of Toronto, Lawrence Berkeley National Laboratory, Observatoire de Paris, University of Ferrara, Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, University of Oxford, University of Sussex, University of KwaZulu-Natal, University of Southern California, Université Grenoble Alpes, California Institute of Technology, Sapienza University of Rome, Astronomical Observatory of Padua, University of Manchester, Imperial College London, European Space Astronomy Centre, University College London, Max Planck Institute for Astrophysics, African Institute for Mathematical Sciences, Jodrell Bank Centre for Astrophysics, Topological Quantum Fluids, Department of Applied Physics, Aalto-yliopisto, Aalto University, Cardiff University, Metsähovi Radio Observatory, University of Helsinki, Université de Toulouse, Universidad de Cantabria, Instituto Nationale di Fisica Nucleare, University of Granada, Pierre and Marie Curie University, Istituto Nazionale Astrofisica - Italy, University of California Berkeley, Telecom ParisTech, University of Paris Diderot, Princeton University, Niels Bohr Institute, University of Copenhagen, Department of Radio Science and Engineering, Université Paris Diderot, Kavli Institute for Cosmology Cambridge, Université Fédérale Toulouse Midi-Pyrénées, Università degli Studi di Milano, Nicolaus Copernicus Astronomical Center, INAF/IASF Bologna, Niels Bohr Institute, INAF, Osservatorio Astronomico di Padova, Ludwig Maximilian University of Munich, INAF/IASF Milano, and European Space Agency - ESA

Subjects
PECULIAR VELOCITIES, PARTICLE HYDRODYNAMICS SIMULATIONS, individual: Messier 31 [galaxies], BULK FLOW, galaxies [submillimeter], Astrophysics::Cosmology and Extragalactic Astrophysics, WIENER RECONSTRUCTION, STAR-FORMATION RATES, Cosmic background radiation, COSMOLOGICAL IMPLICATIONS, SPHERE, LOCAL GROUP GALAXIES, PRE-LAUNCH STATUS, COSMIC WEB, SPINNING DUST EMISSION, ISM [submillimeter], observations [Cosmology], COMPLETE CO SURVEY, Astrophysics::Galaxy Astrophysics, SPITZER-SPACE-TELESCOPE, polarization, REDSHIFT SURVEYS, RESOLUTION IRAS MAPS, ISM [galaxies], general [ISM], WAVELETS, Astrophysics::Instrumentation and Methods for Astrophysics, GALAXY SAMPLES, FAR-INFRARED LUMINOSITY, RADIO-CONTINUUM SURVEY, galaxies [radio continuum], CLOUD, general [Planets and satellites], GALAXY, ROTATION MEASURES, clusters: intracluster medium [galaxies], MULTIBAND IMAGING PHOTOMETER, IRAS-GALAXIES, structure [galaxies], MORPHOLOGY, DARK ENERGY, large-scale structure of Universe, DENSITY FIELDS, Astrophysics::Earth and Planetary Astrophysics, EMISSION
Abstract

Measurements of flux density are described for five planets, Mars, Jupiter, Saturn, Uranus, and Neptune, across the six Planck High Frequency Instrument frequency bands (100-857 GHz) and these are then compared with models and existing data. In our analysis, we have also included estimates of the brightness of Jupiter and Saturn at the three frequencies of the Planck Low Frequency Instrument (30, 44, and 70 GHz). The results provide constraints on the intrinsic brightness and the brightness time-variability of these planets. The majority of the planet flux density estimates are limited by systematic errors, but still yield better than 1% measurements in many cases. Applying data from Planck HFI, the Wilkinson Microwave Anisotropy Probe (WMAP), and the Atacama Cosmology Telescope (ACT) to a model that incorporates contributions from Saturn's rings to the planet's total flux density suggests a best fit value for the spectral index of Saturn's ring system of βring = 2.30 ± 0.03 over the 30-1000 GHz frequency range. Estimates of the polarization amplitude of the planets have also been made in the four bands that have polarization-sensitive detectors (100-353 GHz); this analysis provides a 95% confidence level upper limit on Mars's polarization of 1.8, 1.7, 1.2, and 1.7% at 100, 143, 217, and 353 GHz, respectively. The average ratio between the Planck-HFI measurements and the adopted model predictions for all five planets (excluding Jupiter observations for 353 GHz) is 1.004, 1.002, 1.021, and 1.033 for 100, 143, 217, and 353 GHz, respectively. Model predictions for planet thermodynamic temperatures are therefore consistent with the absolute calibration of Planck-HFI detectors at about the three-percent level. We compare our measurements with published results from recent cosmic microwave background experiments. In particular, we observe that the flux densities measured by Planck HFI and WMAP agree to within 2%. These results allow experiments operating in the mm-wavelength range to cross-calibrate against Planck and improve models of radiative transport used in planetary science.

Published
2017

11. Planck intermediate results

Author

Aghanim, N., Akrami, Y., Ashdown, M., Aumont, J., Baccigalupi, C., Ballardini, M., Banday, A. J., Barreiro, R. B., Bartolo, N., Basak, S., Benabed, K., Bersanelli, M., Bielewicz, P., Bonaldi, A., Bonavera, L., Bond, J. R., Borrill, J., Bouchet, F. R., Burigana, C., Calabrese, E., Cardoso, J. F., Challinor, A., Chiang, H. C., Colombo, L. P.L., Combet, C., Crill, B. P., Curto, A., Cuttaia, F., De Bernardis, P., De Rosa, A., De Zotti, G., Delabrouille, J., Di Valentino, E., Dickinson, C., Diego, J. M., Doré, O., Ducout, A., Dupac, X., Dusini, S., Efstathiou, G., Elsner, F., Enßlin, T. A., Eriksen, H. K., Fantaye, Y., Finelli, F., Forastieri, F., Frailis, M., Franceschi, E., Frolov, A., Galeotta, S., Galli, S., Ganga, K., Génova-Santos, R. T., Gerbino, M., González-Nuevo, J., Górski, K. M., Gratton, S., Gruppuso, A., Gudmundsson, J. E., Herranz, D., Hivon, E., Huang, Z., Jaffe, A. H., Jones, W. C., Keihänen, E., Keskitalo, R., Kiiveri, K., Kim, J., Kisner, T. S., Knox, L., Krachmalnicoff, N., Kunz, M., Kurki-Suonio, H., Lagache, G., Lamarre, J. M., Lasenby, A., Lattanzi, M., Lawrence, C. R., Le Jeune, M., Levrier, F., Lewis, A., Liguori, M., Lilje, P. B., Lilley, M., Lindholm, V., López-Caniego, M., Lubin, P. M., Ma, Y. Z., Macías-Pérez, J. F., Maggio, G., Maino, D., Mandolesi, N., Mangilli, A., Maris, M., Martin, P. G., Martínez-González, E., Matarrese, S., Mauri, N., McEwen, J. D., Meinhold, P. R., Mennella, A., Migliaccio, M., Millea, M., Miville-Deschênes, M. A., Molinari, D., Moneti, A., Montier, L., Morgante, G., Moss, A., Narimani, A., Natoli, P., Oxborrow, C. A., Pagano, L., Paoletti, D., Partridge, B., Patanchon, G., Patrizii, L., Pettorino, V., Piacentini, F., Polastri, L., Polenta, G., Puget, J. L., Rachen, J. P., Racine, B., Reinecke, M., Remazeilles, M., Renzi, A., Rocha, G., Rossetti, M., Roudier, G., Rubiño-Martín, J. A., Ruiz-Granados, B., Salvati, L., Sandri, M., Savelainen, M., Scott, D., Sirignano, C., Sirri, G., Stanco, L., Suur-Uski, A. S., Tauber, J. A., Tavagnacco, D., Tenti, M., Toffolatti, L., Tomasi, M., Tristram, M., Trombetti, T., Valiviita, J., Van Tent, F., Vielva, P., Villa, F., Vittorio, N., Wandelt, B. D., Wehus, I. K., White, Martin J., Zacchei, A., Zonca, A., Red Española de Supercomputación, Center for Science (Finland), Academy of Finland, German Research Foundation, Federal Ministry of Education and Research (Germany), Canadian Space Agency, DTU Space (Denmark), Swiss Space Office, Research Council of Norway, Science Foundation Ireland, Ministério da Ciência, Tecnologia e Ensino Superior (Portugal), Fundação para a Ciência e a Tecnologia (Portugal), European Research Council, European Commission, Ministerio de Economía, Industria y Competitividad (España), Consejo Superior de Investigaciones Científicas (España), Department of Energy (US), National Aeronautics and Space Administration (US), Consiglio Nazionale delle Ricerche, Istituto Nazionale di Astrofisica, Agenzia Spaziale Italiana, Centre National D'Etudes Spatiales (France), Centre National de la Recherche Scientifique (France), European Space Agency, Science and Technology Facilities Council (UK), Université Paris-Sud, Leiden University, University of Cambridge, International School for Advanced Studies, University of Bologna, CNRS, CSIC, University of Padova, Indian Institute of Science Education and Research Thiruvananthapuram, University of Milan, University of Manchester, University of Oviedo, University of Toronto, Lawrence Berkeley National Laboratory, University of Ferrara, Cardiff University, Observatoire de Paris, University of KwaZulu-Natal, University of Southern California, Université Grenoble Alpes, California Institute of Technology, Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, Sapienza University of Rome, Astronomical Observatory of Padua, Imperial College London, European Space Astronomy Centre, National Institute for Nuclear Physics, Max Planck Institute for Astrophysics, University of Oslo, African Institute for Mathematical Sciences, Osservatorio Astronomico di Trieste, Simon Fraser University, University of Chicago, University of La Laguna, Jet Propulsion Laboratory, Princeton University, Sun Yat-Sen University, University of Helsinki, University of California Davis, University of Sussex, University of California Santa Barbara, Jodrell Bank Centre for Astrophysics, University College London, Italian Space Agency, University of Nottingham, University of British Columbia, Technical University of Denmark, Haverford College, Heidelberg University, Radboud University Nijmegen, University of Granada, Topological Quantum Fluids, ESTEC, University of Trieste, University of Rome Tor Vergata, University of Illinois at Urbana-Champaign, University of Adelaide, University of California San Diego, Department of Applied Physics, Aalto-yliopisto, and Aalto University

Subjects
theory [Cosmology], Cosmological parameters, Cosmology: observations, observations [Cosmology], Submillimeter: ISM, Cosmic background radiation, Dust, extinction
Abstract

Planck Collaboration., The characterization of the Galactic foregrounds has been shown to be the main obstacle in thechallenging quest to detect primordial B-modes in the polarized microwave sky. We make use of the Planck-HFI 2015 data release at high frequencies to place new constraints on the properties of the polarized thermal dust emission at high Galactic latitudes. Here, we specifically study the spatial variability of the dust polarized spectral energy distribution (SED), and its potential impact on the determination of the tensor-to-scalar ratio, r. We use the correlation ratio of the angular power spectra between the 217 and 353 GHz channels as a tracer of these potential variations, computed on different high Galactic latitude regions, ranging from 80% to 20% of the sky. The new insight from Planck data is a departure of the correlation ratio from unity that cannot be attributed to a spurious decorrelation due to the cosmic microwave background, instrumental noise, or instrumental systematics. The effect is marginally detected on each region, but the statistical combination of all the regions gives more than 99% confidence for this variation in polarized dust properties. In addition, we show that the decorrelation increases when there is a decrease in the mean column density of the region of the sky being considered, and we propose a simple power-law empirical model for this dependence, which matches what is seen in the Planck data. We explore the effect that this measured decorrelation has on simulations of the BICEP2-Keck Array/Planck analysis and show that the 2015 constraints from these data still allow a decorrelation between the dust at 150 and 353 GHz that is compatible with our measured value. Finally, using simplified models, we show that either spatial variation of the dust SED or of the dust polarization angle are able to produce decorrelations between 217 and 353 GHz data similar to the values we observe in the data., 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, J.A., 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); ERC and PRACE (EU). The research leading to these results has received funding from the European Research Council under the European Union’s Seventh Framework Programme (FP7/2007-2013) / ERC grant agreement No. 267934.

Published
2017

12. Planck intermediate results

Author

Ade, P. A R, Aghanim, N., Ashdown, M., Aumont, J., Baccigalupi, C., Banday, A. J., Barreiro, R. B., Bartolo, N., Basak, S., Battaner, E., Benabed, K., Benoit-Lévy, A., Bernard, J. P., Bersanelli, M., Bielewicz, P., Bock, J. J., Bonaldi, A., Bonavera, L., Bond, J. R., Borrill, J., Bouchet, F. R., Boulanger, F., Burigana, C., Butler, R. C., Calabrese, E., Cardoso, J. F., Catalano, A., Chiang, H. C., Christensen, P. R., Clements, D. L., Colombi, S., Colombo, L. P L, Combet, C., Crill, B. P., Curto, A., Cuttaia, F., Danese, L., Davis, R. J., De Bernardis, P., De Zotti, G., Delabrouille, J., Dickinson, C., Diego, J. M., Doré, O., Ducout, A., Dupac, X., Elsner, F., Enßlin, T. A., Eriksen, H. K., Finelli, F., Forni, O., Frailis, M., Fraisse, A. A., Franceschi, E., Galeotta, S., Galli, S., Ganga, K., Ghosh, T., Giard, M., Giraud-Héraud, Y., Gjerløw, E., González-Nuevo, J., Górski, K. M., Gruppuso, A., Gudmundsson, J. E., Harrison, D. L., Hernández-Monteagudo, C., Herranz, D., Hildebrandt, S. R., Hornstrup, A., Hovest, W., Hurier, G., Jaffe, A. H., Jones, W. C., Keihänen, E., Keskitalo, R., Kisner, T. S., Knoche, J., Knox, L., Kunz, M., Kurki-Suonio, H., Lagache, G., Lähteenmäki, A., Lamarre, J. M., Lasenby, A., Lattanzi, M., Leonardi, R., Levrier, F., Lilje, P. B., Linden-Vørnle, M., López-Caniego, M., Lubin, P. M., Macías-Pérez, J. F., Maffei, B., Maggio, G., Maino, D., Mandolesi, N., Mangilli, A., Maris, M., Martin, P. G., Martínez-González, E., Masi, S., Matarrese, S., Meinhold, P. R., Melchiorri, A., Mennella, A., Migliaccio, M., Mitra, S., Miville-Deschênes, M. A., Moneti, A., Montier, L., Morgante, G., Mortlock, D., Moss, A., Munshi, D., Murphy, J. A., Naselsky, P., Nati, F., Natoli, P., Netterfield, C. B., Nørgaard-Nielsen, H. U., Novikov, D., Novikov, I., Pagano, L., Pajot, F., Paoletti, D., Pasian, F., Patanchon, G., Perdereau, O., Perotto, L., Pettorino, V., Piacentini, F., Piat, M., Pierpaoli, E., Pointecouteau, E., Polenta, G., Pratt, G. W., Rachen, J. P., Reinecke, M., Remazeilles, M., Renault, C., Renzi, A., Ristorcelli, I., Rocha, G., Rosset, C., Rossetti, M., Roudier, G., Rubiño-Martín, J. A., Rusholme, B., Sandri, M., Santos, D., Savelainen, M., Savini, G., Scott, D., Spencer, L. D., Stolyarov, V., Stompor, R., Sudiwala, R., Sunyaev, R., Sutton, D., Suur-Uski, A. S., Sygnet, J. F., Tauber, J. A., Terenzi, L., Toffolatti, L., Tomasi, M., Tristram, M., Tucci, M., Tuovinen, J., Valenziano, L., Väliviita, J., Van Tent, B., Vielva, P., Villa, F., Wade, L. A., Wandelt, B. D., Wehus, I. K., Yvon, D., Zacchei, A., Zonca, A., Cardiff University, Institut national de physique nucléaire et de physique des particules, Kavli Institute for Cosmology Cambridge, International School for Advanced Studies, IRAP, Universidad de Cantabria, University of Padova, University of Granada, UMR7095, INAF/IASF Milano, California Institute of Technology, University of Manchester, University of Toronto, University of California Berkeley, Institut d 'Astrophysique de Paris, INAF/IASF Bologna, Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, University of Oxford, CNRS, Princeton University, Niels Bohr Institute, Imperial College London, University of Southern California, Università La Sapienza, Université Pierre and Marie Curie, Centre National de la Recherche Scientifique (CNRS), Urbanización Villafranca Del Castillo, Max-Planck-Institut für Astrophysik, University of Oslo, Osservatorio Astronomico di Trieste, University of Chicago, Institut d'Astrophysique Spatiale, University of Oviedo, University of Warsaw, Stockholm University, Danmarks Tekniske Universitet, University of Helsinki, Lawrence Berkeley National Laboratory, University of California Davis, Department of Radio Science and Engineering, LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres, University of Ferrara, Torre C, European Space Astronomy Centre, University of California Santa Barbara, Université Paris-Sud, Inter-University Centre for Astronomy and Astrophysics, University of Nottingham, Russian Academy of Sciences, Institut für Theoretische Astrophysik, ASI Science Data Center, Université Paris Diderot, Università di Roma Tor Vergata, Instituto de Astrofísica de Canarias, University College London, University of British Columbia, University of Cambridge, Space Research Institute of the Russian Academy of Sciences, European Space Research and Technology Centre, University of Geneva, Trinity College Dublin, Jet Propulsion Laboratory, Aalto-yliopisto, and Aalto University

Subjects
Polarization, Astrophysics::Cosmology and Extragalactic Astrophysics, Cosmic background radiation, observations [Cosmology], weak [Gravitational lensing]
Abstract

The secondary cosmic microwave background (CMB) B-modes stem from the post-decoupling distortion of the polarization E-modes due to the gravitational lensing effect of large-scale structures. These lensing-induced B-modes constitute both a valuable probe of the dark matter distribution and an important contaminant for the extraction of the primary CMB B-modes from inflation. Planck provides accurate nearly all-sky measurements of both the polarization E-modes and the integrated mass distribution via the reconstruction of the CMB lensing potential. By combining these two data products, we have produced an all-sky template map of the lensing-induced B-modes using a real-space algorithm that minimizes the impact of sky masks. The cross-correlation of this template with an observed (primordial and secondary) B-mode map can be used to measure the lensing B-mode power spectrum at multipoles up to 2000. In particular, when cross-correlating with the B-mode contribution directly derived from the Planck polarization maps, we obtain lensing-induced B-mode power spectrum measurement at a significance level of 12σ, which agrees with the theoretical expectation derived from the Planck best-fit Λ cold dark matter model. This unique nearly all-sky secondary B-mode template, which includes the lensing-induced information from intermediate to small (10 ≤ l ≤ 1000) angular scales, is delivered as part of the Planck 2015 public data release. It will be particularly useful for experiments searching for primordial B-modes, such as BICEP2/Keck Array or LiteBIRD, since it will enable an estimate to be made of the lensing-induced contribution to the measured total CMB B-modes.

Published
2016

13. Planck 2015 results

Author

Adam, R., Ade, P. A R, Aghanim, N., Akrami, Y., Alves, M. I R, Arguëso, F., Arnaud, M., Arroja, F., Ashdown, M., Aumont, J., Baccigalupi, C., Ballardini, M., Banday, A. J., Barreiro, R. B., Bartlett, J. G., Bartolo, N., Basak, S., Battaglia, P., Battaner, E., Battye, R., Benabed, K., Benoît, A., Benoit-Lévy, A., Bernard, J. P., Bersanelli, M., Bertincourt, B., Bielewicz, P., Bikmaev, I., Bock, J. J., Böhringer, H., Bonaldi, A., Bonavera, L., Bond, J. R., Borrill, J., Bouchet, F. R., Boulanger, F., Bucher, M., Burenin, R., Burigana, C., Butler, R. C., Calabrese, E., Cardoso, J. F., Carvalho, P., Casaponsa, B., Castex, G., Catalano, A., Challinor, A., Chamballu, A., Chary, R. R., Chiang, H. C., Chluba, J., Chon, G., Christensen, P. R., Church, S., Clemens, M., Clements, D. L., Colombi, S., Colombo, L. P L, Combet, C., Comis, B., Contreras, D., Couchot, F., Coulais, A., Crill, B. P., Cruz, M., Curto, A., Cuttaia, F., Danese, L., Davies, R. D., Davis, R. J., De Bernardis, P., De Rosa, A., De Zotti, G., Delabrouille, J., Delouis, J.-M., Désert, F. X., Di Valentino, E., Dickinson, C., Diego, J. M., Dolag, K., Dole, H., Donzelli, S., Doré, O., Douspis, M., Ducout, A., Dunkley, J., Dupac, X., Efstathiou, G., Eisenhardt, P. R M, Elsner, F., Enßlin, T. A., Eriksen, H. K., Falgarone, E., Fantaye, Y., Farhang, M., Feeney, S., Fergusson, J., Fernandez-Cobos, R., Feroz, F., Finelli, F., Florido, E., Forni, O., Frailis, M., Fraisse, A. A., Franceschet, C., Franceschi, E., Frejsel, A., Frolov, A., Galeotta, S., Galli, S., Ganga, K., Gauthier, C., Génova-Santos, R. T., Gerbino, M., Ghosh, T., Giard, M., Giraud-Héraud, Y., Giusarma, E., Gjerløw, E., González-Nuevo, J., Górski, K. M., Grainge, K. J B, Gratton, S., Gregorio, A., Gruppuso, A., Gudmundsson, J. E., Hamann, J., Handley, W., Hansen, F. K., Hanson, D., Harrison, D. L., Heavens, A., Helou, G., Henrot-Versillé, S., Hernández-Monteagudo, C., Herranz, D., Hildebrandt, S. R., Hivon, E., Hobson, M., Holmes, W. A., Hornstrup, A., Hovest, W., Huang, Z., Huffenberger, K. M., Hurier, G., Ilić, S., Jaffe, A. H., Jaffe, T. R., Jin, T., Jones, W. C., Juvela, M., Karakci, A., Keihänen, E., Keskitalo, R., Khamitov, I., Kiiveri, K., Kim, Jaiseung, Kisner, T. S., Kneissl, R., Knoche, J., Knox, L., Krachmalnicoff, N., Kunz, M., Kurki-Suonio, H., Lacasa, F., Lagache, G., Lähteenmäki, A., Lamarre, J. M., Langer, M., Lasenby, A., Lattanzi, M., Lawrence, C. R., Le Jeune, M., Leahy, J. P., Lellouch, E., Leonardi, R., León-Tavares, J., Lesgourgues, J., Levrier, F., Lewis, A., Liguori, M., Lilje, P. B., Lilley, M., Linden-Vørnle, M., Lindholm, V., Liu, H., López-Caniego, M., Lubin, P. M., Ma, Y.-Z., Maciás-Pérez, J. F., Maggio, G., Maino, D., Mak, D. S Y, Mandolesi, N., Mangilli, A., Marchini, A., Marcos-Caballero, A., Marinucci, D., Maris, M., Marshall, D. J., Martin, P. G., Martinelli, M., Martínez-González, E., Masi, S., Matarrese, S., Mazzotta, P., Mcewen, J. D., Mcgehee, P., Mei, S., Meinhold, P. R., Melchiorri, A., Melin, J. B., Mendes, L., Mennella, A., Migliaccio, M., Mikkelsen, K., Millea, M., Mitra, S., Miville-Deschênes, M. A., Molinari, D., Moneti, A., Montier, L., Moreno, R., Morgante, G., Mortlock, D., Moss, A., Mottet, S., Münchmeyer, M., Munshi, D., Murphy, J. A., Narimani, A., Naselsky, P., Nastasi, A., Nati, F., Natoli, P., Negrello, M., Netterfield, C. B., Nørgaard-Nielsen, H. U., Noviello, F., Novikov, D., Novikov, I., Olamaie, M., Oppermann, N., Orlando, E., Oxborrow, C. A., Paci, F., Pagano, L., Pajot, F., Paladini, R., Pandolfi, S., Paoletti, D., Partridge, B., Pasian, F., Patanchon, G., Pearson, T. J., Peel, M., Peiris, H. V., Pelkonen, V. M., Perdereau, O., Perotto, L., Perrott, Y. C., Perrotta, F., Pettorino, V., Piacentini, F., Piat, M., Pierpaoli, E., Pietrobon, D., Plaszczynski, S., Pogosyan, D., Pointecouteau, E., Polenta, G., Popa, L., Pratt, G. W., Prézeau, G., Prunet, S., Puget, J. L., Rachen, J. P., Racine, B., Reach, W. T., Rebolo, R., Reinecke, M., Remazeilles, M., Renault, C., Renzi, A., Ristorcelli, I., Rocha, G., Roman, M., Romelli, E., Rosset, C., Rossetti, M., Rotti, A., Roudier, G., Rouillé D'orfeuil, B., Rowan-Robinson, M., Rubinõ-Martín, J. A., Ruiz-Granados, B., Rumsey, C., Rusholme, B., Said, N., Salvatelli, V., Salvati, L., Sandri, M., Sanghera, H. S., Santos, D., Saunders, R. D E, Sauvé, A., Savelainen, M., Savini, G., Schaefer, B. M., Schammel, M. P., Scott, D., Seiffert, M. D., Serra, P., Shellard, E. P S, Shimwell, T. W., Shiraishi, M., Smith, K., Souradeep, T., Spencer, L. D., Spinelli, M., Stanford, S. A., Stern, D., Stolyarov, V., Stompor, R., Strong, A. W., Sudiwala, R., Sunyaev, R., Sutter, P., Sutton, D., Suur-Uski, A. S., Sygnet, J. F., Tauber, J. A., Tavagnacco, D., Terenzi, L., Texier, D., Toffolatti, L., Tomasi, M., Tornikoski, M., Tramonte, D., Tristram, M., Troja, A., Trombetti, T., Tucci, M., Tuovinen, J., Türler, M., Umana, G., Valenziano, L., Väliviita, J., Van Tent, F., Vassallo, T., Vibert, L., Vidal, M., Viel, M., Vielva, P., Villa, F., Wade, L. A., Walter, B., Wandelt, B. D., Watson, R., Wehus, I. K., Welikala, N., Weller, J., White, M., White, S. D M, Wilkinson, A., Yvon, D., Zacchei, A., Zibin, J. P., Zonca, A., Cardiff University, Institut national de physique nucléaire et de physique des particules, Kavli Institute for Cosmology Cambridge, International School for Advanced Studies, IRAP, Universidad de Cantabria, Sapienza University of Rome, Università Degli Studi di Trieste, Instituto Carlos I de Física Teórica y Computacional, UMR7095, INAF/IASF Milano, Jet Propulsion Laboratory, University of Manchester, University of Toronto, University of California Berkeley, Institut d 'Astrophysique de Paris, Université Sorbonne Paris Cité, Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, University of Oxford, Telecom ParisTech, Service d'Astrophysique CEA, Niels Bohr Institute, Jodrell Bank Centre for Astrophysics, Università La Sapienza, Centre National de la Recherche Scientifique (CNRS), Urbanización Villafranca Del Castillo, University of Cambridge, Max-Planck-Institut für Astrophysik, University of Oslo, Osservatorio Astronomico di Trieste, University of Chicago, University of Warsaw, McGill University, Université Paris-Sud, Danmarks Tekniske Universitet, Florida State University, Imperial College London, University of Helsinki, Lawrence Berkeley National Laboratory, University of Milano, Department of Radio Science and Engineering, LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres, University of Ferrara, Centro de Gestão e Estudos Estratégicos, CERN, University of California Santa Barbara, California Institute of Technology, University of Nottingham, National University of Ireland, Galway, Princeton University, RAS - P.N. Lebedev Physics Institute, Haverford College, Institut für Theoretische Astrophysik, University of Southern California, Osservatorio Astronomico Roma, Instituto de Astrofísica de Canarias, Università di Roma Tor Vergata, University of British Columbia, Special Astrophysical Observatory of the Russian Academy of Sciences, European Space Research and Technology Centre, Università degli Studi eCampus, University of Geneva, Trinity College Dublin, INAF, Osservatorio Astrofisico di Catania, Université Paris Diderot, Aalto-yliopisto, Aalto University, Stanford University, Stockholm University, University of Sussex, Institute for Space Sciences, Universities Space Research Association, University College London, Space Research Institute of the Russian Academy of Sciences, CNRS/IN2P3, Universite de Toulouse, Instituto de Física de Cantabria (CSIC-Universidad de Cantabria), Jet Propulsion Laboratory, California Institute of Technology, AstroParticule et Cosmologie, Università Degli Studi di Padova, Istituto Nazionale di Fisica Nucleare, Sezione di Padova, I-35131 Padova, Italy, University of Granada, CNRS, Università degli Studi di Milano, Nicolaus Copernicus Astronomical Center, University of California at Berkeley, Universite Paris Sorbonne - Paris IV, INAF/IASF Bologna, Università di Ferrara, INFN, Sezione di Bologna, UMR 5141, Laboratoire AIM, Service d’Astrophysique, DSM\IRFU, CEA\Saclay, Institut d'Astrophysique Spatiale, University of KwaZulu-Natal, Johns Hopkins University, INAF, Osservatorio Astronomico di Padova, UMR 7095, Ludwig Maximilian University of Munich, Institut Universitaire de France, European Space Agcy, European Space Agency, ESAC, Planck Sci Off, Shahid Beheshti University, National Taiwan University, Stockholms universitet, NORDITA, Istituto Nazionale di Fisica Nucleare, University of Sydney, Centro de Estudios de la Física del Cosmos de Aragón, Technical University of Denmark, European Southern Observatory Santiago, ALMA Santiago Central Offices, University of California, Université de Genève, African Institute for Mathematical Sciences, Helsinki Institute of Physics, Aix Marseille Universite, Metsähovi Radio Observatory, INFN, Sezione di Ferrara, RWTH Aachen University, INFN, Sezione di Padova, University of California, Santa Barbara, INAF, Osservatorio Astronomico di Trieste, Universite Paris-Sud, INFN, Sezione di Roma 1, University of Heidelberg, Gran Sasso Science Institute, CEA Saclay, CEA, DSM Irfu SPP, Inter-University Centre for Astronomy and Astrophysics, CNRS Centre National de la Recherche Scientifique, National University of Ireland, University of Copenhagen, ASI Science Data Center, RAS - Pn Lebedev Physics Institute, INAF, Osservatorio Astronomico di Roma, Université Pierre and Marie Curie, Radboud University Nijmegen, Instituto Astrofisico de Canarias, CSIC, Universidad de La Laguna, Department of Applied Physics, ROTA – Topological superfluids, Special Astrophysical Observatory, Russian Academy of Sciences, Kazan Federal University, Space Research Institute, Russian Academy of Sciences, ESTEC - European Space Research and Technology Centre, Università degli Studi e-Campus, Universidad de Oviedo, University of Illinois at Urbana-Champaign, Université Paris-Saclay, University of Oviedo, IRFM-CEA, CEA Saclay, University of Bologna, Astroparticle and Cosmology Laboratory, University of Padova, Max Planck Institute for Extraterrestrial Physics, Russian Academy of Sciences, INAF - Osservatorio Astronomico di Padova, Institut de Planétologie et d'Astrophysique de Grenoble, European Space Astronomy Centre, INAF - Osservatorio Astronomico di Trieste, Simon Fraser University, TÛBITAK National Observatory, University of California Davis, Heidelberg University, Observatoire de Paris, University of Alberta, Inter-University Centre for Astronomy and Astrophysics India, Leiden University, Perimeter Institute for Theoretical Physics, Ludwig-Maximilians-University, University Observatory Munich, Facultad de Ciencias, Université Paris 13, School of Physics and Astronomy, Osservatorio Astronomicodi Roma, Universite Joseph Fourier, Université Grenoble Alpes, and European Space Agency - ESA

Subjects
statistical [Methods], Diffuse radiation, Large-scale structure of Universe, Astrophysics::High Energy Astrophysical Phenomena, Local insterstellar matter, Cosmological parameters, Astrophysics::Cosmology and Extragalactic Astrophysics, Surveys, clusters: general [Galaxies], Cosmic background radiation, Early Universe, instruments [Space vehicles], theory [Cosmology], Polarization, Dark energy, observations [Cosmology], data analysis [Methods], general [Galaxy], Astrophysics::Galaxy Astrophysics, detectors [Instrumentation], general [Radiation mechanisms], polarimeters [Instrumentation], general [ISM], Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy and Astrophysics, Inflation, ISM [Radio continuum], Space and Planetary Science, 115 Astronomy and space science, Magnetic fields, Gravitation
Abstract

This paper presents cosmological results based on full-mission Planck observations of temperature and polarization anisotropies of the cosmic microwave background (CMB) radiation. Our results are in very good agreement with the 2013 analysis of the Planck nominal-mission temperature data, but with increased precision. The temperature and polarization power spectra are consistent with the standard spatially-flat 6-parameter ΛCDM cosmology with a power-law spectrum of adiabatic scalar perturbations (denoted "base ΛCDM" in this paper). From the Planck temperature data combined with Planck lensing, for this cosmology we find a Hubble constant, H0 = (67.8 ± 0.9) km s-1Mpc-1, a matter density parameter Ωm = 0.308 ± 0.012, and a tilted scalar spectral index with ns = 0.968 ± 0.006, consistent with the 2013 analysis. Note that in this abstract we quote 68% confidence limits on measured parameters and 95% upper limits on other parameters. We present the first results of polarization measurements with the Low FrequencyInstrument at large angular scales. Combined with the Planck temperature and lensing data, these measurements give a reionization optical depth of τ = 0.066 ± 0.016, corresponding to a reionization redshift of \hbox{$z-{\rm re}=8.8{+1.7}-{-1.4}$}. These results are consistent with those from WMAP polarization measurements cleaned for dust emission using 353-GHz polarization maps from the High Frequency Instrument. We find no evidence for any departure from base ΛCDM in the neutrino sector of the theory; for example, combining Planck observations with other astrophysical data we find Neff = 3.15 ± 0.23 for the effective number of relativistic degrees of freedom, consistent with the value Neff = 3.046 of the Standard Model of particle physics. The sum of neutrino masses is constrained to â'mν < 0.23 eV. The spatial curvature of our Universe is found to be very close to zero, with | ΩK | < 0.005. Adding a tensor component as a single-parameter extension to base ΛCDM we find an upper limit on the tensor-to-scalar ratio of r0.002< 0.11, consistent with the Planck 2013 results and consistent with the B-mode polarization constraints from a joint analysis of BICEP2, Keck Array, and Planck (BKP) data. Adding the BKP B-mode data to our analysis leads to a tighter constraint of r0.002 < 0.09 and disfavours inflationarymodels with a V(φ) φ2 potential. The addition of Planck polarization data leads to strong constraints on deviations from a purely adiabatic spectrum of fluctuations. We find no evidence for any contribution from isocurvature perturbations or from cosmic defects. Combining Planck data with other astrophysical data, including Type Ia supernovae, the equation of state of dark energy is constrained to w =-1.006 ± 0.045, consistent with the expected value for a cosmological constant. The standard big bang nucleosynthesis predictions for the helium and deuterium abundances for the best-fit Planck base ΛCDM cosmology are in excellent agreement with observations. We also constraints on annihilating dark matter and onpossible deviations from the standard recombination history. In neither case do we find no evidence for new physics. The Planck results for base ΛCDM are in good agreement with baryon acoustic oscillation data and with the JLA sample of Type Ia supernovae. However, as in the 2013 analysis, the amplitude of the fluctuation spectrum is found to be higher than inferred from some analyses of rich cluster counts and weak gravitational lensing. We show that these tensions cannot easily be resolved with simple modifications of the base ΛCDM cosmology. Apart from these tensions, the base ΛCDM cosmology provides an excellent description of the Planck CMB observations and many other astrophysical data sets.

Published
2016

14. Planck intermediate results

Author

Aghanim, N., Alves, M., Arzoumanian, D., Aumont, J., Baccigalupi, C., Ballardini, M., Banday, A., Barreiro, B., Bartolo, N., Basak, S., Benabed, K., Bernard, P., Bersanelli, M., Bielewicz, P., Bonavera, L., Bond, J., Borrill, J., Bouchet, F., Boulanger, F., Bracco, A., Bucher, M., Burigana, C., Calabrese, E., Cardoso, F., Chiang, C., Colombo, P., Combet, C., Comis, B., Couchot, F., Coulais, A., Crill, P., Curto, A., Cuttaia, F., Davis, J., De Bernardis, P., De Rosa, A., De Zotti, G., Delabrouille, J., Delouis, J., Di Valentino, E., Dickinson, C., Diego, J., Doré, O., Douspis, M., Ducout, A., Dupac, X., Dusini, S., Efstathiou, G., Elsner, F., Enßlin, A., Eriksen, H., Falgarone, E., Fantaye, Y., Ferrière, K., Finelli, F., Frailis, M., Fraisse, A., Franceschi, E., Frolov, A., Galeotta, S., Galli, S., Ganga, K., Génova-Santos, T., Gerbino, M., Ghosh, T., González-Nuevo, J., Górski, M., Gratton, Serge, Gregorio, A., Gruppuso, A., Gudmundsson, J., Guillet, V., Hansen, F., Helou, G., Henrot-Versillé, S., Herranz, D., Hivon, E., Huang, Z., Jaffe, A., Jaffe, T., Jones, C., Keihänen, E., Keskitalo, R., Kisner, T., Krachmalnicoff, N., Kunz, M., Kurki-Suonio, H., Lagache, Guilaine, Lähteenmäki, A., Lamarre, J., Langer, M., Lasenby, A., Lattanzi, M., Le Jeune, M., Levrier, F., Liguori, M., Lilje, P., López-Caniego, M., Lubin, P., Macías-Pérez, J.F., Maggio, G., Maino, D., Mandolesi, N., Mangilli, A., Maris, M., Martin, P., Martínez-González, E., Matarrese, S., Mauri, N., McEwen, J., Melchiorri, A., Mennella, A., Migliaccio, M., Miville-Deschênes, A., Molinari, D., Moneti, A., Montier, L., Morgante, G., Moss, A., Naselsky, P., Natoli, P., Neveu, J., Nørgaard-Nielsen, H. U., Oppermann, N., Oxborrow, A., Pagano, L., Paoletti, D., Partridge, B., Perdereau, O., Perotto, L., Pettorino, V., Piacentini, F., Plaszczynski, S., Polenta, G., Rachen, P., Rebolo, R., Reinecke, M., Remazeilles, M., Renzi, A., Ristorcelli, I., Rocha, G., Rossetti, M., Roudier, G., Ruiz-Granados, B., Salvati, L., Sandri, M., Savelainen, M., Scott, D., Sirignano, C., Soler, J., Suur-Uski, A., Tauber, A., Tavagnacco, D., Tenti, M., Toffolatti, L., Tomasi, M., Tristram, M., Trombetti, T., Valiviita, J., Vansyngel, F., Van Tent, F., Vielva, P., Villa, F., Wandelt, B. D., Wehus, I. K., Zacchei, A., Zonca, A., Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), PLANCK, Institut national de physique nucléaire et de physique des particules, IRAP, Service d'Astrophysique CEA, International School for Advanced Studies, Sapienza University of Rome, Universidad de Cantabria, UMR7095, INAF/IASF Milano, University of Toronto, University of California Berkeley, Institut d 'Astrophysique de Paris, Université Pierre and Marie Curie, University of Oxford, Telecom ParisTech, Princeton University, Jet Propulsion Laboratory, Université Paris-Sud, LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres, Kavli Institute for Cosmology Cambridge, Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, University of Manchester, Università La Sapienza, Centre National de la Recherche Scientifique (CNRS), Urbanización Villafranca Del Castillo, University of Cambridge, Max-Planck-Institut für Astrophysik, University of Oslo, Università di Roma Tor Vergata, Osservatorio Astronomico di Trieste, Simon Fraser University, University of Chicago, Instituto de Astrofísica de Canarias, Stockholm University, University of Warsaw, California Institute of Technology, Imperial College London, University of Helsinki, Lawrence Berkeley National Laboratory, University of Milano, Metsähovi Radio Observatory, University of California Santa Barbara, University College London, University of Nottingham, Niels Bohr Institute, Danmarks Tekniske Universitet, Haverford College, Institut für Theoretische Astrophysik, Osservatorio Astronomico Roma, Facultad de Ciencias, University of British Columbia, European Space Research and Technology Centre, Department of Electronics and Nanoengineering, Aalto-yliopisto, and Aalto University

Subjects
dust extinction, polarization, Magnetohydrodynamics (MHD), magnetic fields [ISM], Astrophysics::Cosmology and Extragalactic Astrophysics, cosmic background radiation, Cosmic background radiation, magnetohydrodynamics (MHD), methods: data analysis, [PHYS.ASTR.GA]Physics [physics]/Astrophysics [astro-ph]/Galactic Astrophysics [astro-ph.GA], Polarization, ISM: magnetic fields, data analysis [Methods], Dust, extinction, Astrophysics::Galaxy Astrophysics
Abstract

International audience; Using data from the Planck satellite, we study the statistical properties of interstellar dust polarization at high Galactic latitudes around the south pole (b < −60°). Our aim is to advance the understanding of the magnetized interstellar medium (ISM), and to provide a modelling framework of the polarized dust foreground for use in cosmic microwave background (CMB) component-separation procedures. We examine the Stokes I, Q, and U maps at 353 GHz, and particularly the statistical distribution of the polarization fraction (p) and angle (ψ), in order to characterize the ordered and turbulent components of the Galactic magnetic field (GMF) in the solar neighbourhood. The Q and U maps show patterns at large angular scales, which we relate to the mean orientation of the GMF towards Galactic coordinates (l0,b0) = (70° ± 5°,24° ± 5°). The histogram of the observed p values shows a wide dispersion up to 25%. The histogram of ψ has a standard deviation of 12° about the regular pattern expected from the ordered GMF. We build a phenomenological model that connects the distributions of p and ψ to a statistical description of the turbulent component of the GMF, assuming a uniform effective polarization fraction (p0) of dust emission. To compute the Stokes parameters, we approximate the integration along the line of sight (LOS) as a sum over a set of N independent polarization layers, in each of which the turbulent component of the GMF is obtained from Gaussian realizations of a power-law power spectrum. We are able to reproduce the observed p and ψ distributions using a p0 value of 26%, a ratio of 0.9 between the strengths of the turbulent and mean components of the GMF, and a small value of N. The mean value of p (inferred from the fit of the large-scale patterns in the Stokes maps) is 12 ± 1%. We relate the polarization layers to the density structure and to the correlation length of the GMF along the LOS. We emphasize the simplicity of our model (involving only a few parameters), which can be easily computed on the celestial sphere to produce simulated maps of dust polarization. Our work is an important step towards a model that can be used to assess the accuracy of component-separation methods in present and future CMB experiments designed to search the B mode CMB polarization from primordial gravity waves.

Published
2016
Full Text
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15. Planck intermediate results

Author

Ade, P. A R, Aghanim, N., Arnaud, M., Ashdown, M., Aumont, J., Baccigalupi, C., Balbi, A., Banday, A. J., Barreiro, R. B., Bartlett, J. G., Battaner, E., Benabed, K., Benoît, A., Bernard, J. P., Bersanelli, M., Bikmaev, I., Böhringer, H., Bonaldi, A., Bond, J. R., Borgani, S., Borrill, J., Bouchet, F. R., Brown, M. L., Burigana, C., Butler, R. C., Cabella, P., Carvalho, P., Catalano, A., Cayón, L., Chamballu, A., Chary, R. R., Chiang, L. Y., Chon, G., Christensen, P. R., Clements, D. L., Colafrancesco, S., Colombi, S., Coulais, A., Crill, B. P., Cuttaia, F., Da Silva, A., Dahle, H., Davis, R. J., De Bernardis, P., De Gasperis, G., De Zotti, G., Delabrouille, J., Démoclès, J., Désert, F. X., Diego, J. M., Dolag, K., Dole, H., Donzelli, S., Doré, O., Douspis, M., Dupac, X., Enßlin, T. A., Eriksen, H. K., Finelli, F., Flores-Cacho, I., Forni, O., Frailis, M., Franceschi, E., Frommert, M., Galeotta, S., Ganga, K., Génova-Santos, R. T., Giraud-Héraud, Y., González-Nuevo, J., González-Riestra, R., Górski, K. M., Gregorio, A., Gruppuso, A., Hansen, F. K., Harrison, D., Hempel, A., Henrot-Versillé, S., Hernández-Monteagudo, C., Herranz, D., Hildebrandt, S. R., Hivon, E., Hobson, M., Holmes, W. A., Hornstrup, A., Hovest, W., Huffenberger, K. M., Hurier, G., Jaffe, A. H., Jagemann, T., Jones, W. C., Juvela, M., Kneissl, R., Knoche, J., Knox, L., Kunz, M., Kurki-Suonio, H., Lagache, G., Lamarre, J. M., Lasenby, A., Lawrence, C. R., Le Jeune, M., Leach, S., Leonardi, R., Liddle, A., Lilje, P. B., Linden-Vørnle, M., López-Caniego, M., Luzzi, G., MacÍas-Pérez, J. F., Maino, D., Mandolesi, N., Mann, R., Maris, M., Marleau, F., Marshall, D. J., Martínez-González, E., Masi, S., Massardi, M., Matarrese, S., Mazzotta, P., Mei, S., Meinhold, P. R., Melchiorri, A., Melin, J. B., Mendes, L., Mennella, A., Mitra, S., Miville-Deschênes, M. A., Moneti, A., Morgante, G., Mortlock, D., Munshi, D., Naselsky, P., Nati, F., Natoli, P., Nørgaard-Nielsen, H. U., Noviello, F., Osborne, S., Pajot, F., Paoletti, D., Perdereau, O., Perrotta, F., Piacentini, F., Piat, M., Pierpaoli, E., Piffaretti, R., Plaszczynski, S., Platania, P., Pointecouteau, E., Polenta, G., Popa, L., Poutanen, T., Pratt, G. W., Prunet, S., Puget, J. L., Reinecke, M., Remazeilles, M., Renault, C., Ricciardi, S., Rocha, G., Rosset, C., Rossetti, M., Rubiño-Martín, J. A., Rusholme, B., Sandri, M., Savini, G., Scott, D., Smoot, G. F., Stanford, A., Stivoli, F., Sudiwala, R., Sunyaev, R., Sutton, D., Suur-Uski, A. S., Sygnet, J. F., Tauber, J. A., Terenzi, L., Toffolatti, L., Tomasi, M., Tristram, M., Valenziano, L., Van Tent, B., Vielva, P., Villa, F., Vittorio, N., Wade, L. A., Wandelt, B. D., Welikala, N., Weller, J., White, S. D M, Yvon, D., Zacchei, A., Zonca, A., Cardiff University, Université Paris-Sud, Université Paris Diderot, Kavli Institute for Cosmology Cambridge, International School for Advanced Studies, Università di Roma Tor Vergata, IRAP, Universidad de Cantabria, Jet Propulsion Laboratory, Facultad de Ciencias, UMR7095, Universite Joseph Fourier, Centre National de la Recherche Scientifique (CNRS), INAF/IASF Milano, Kazan Federal University, Max Planck Institute for Extraterrestrial Physics, University of Manchester, University of Toronto, INAF - Osservatorio Astronomico di Trieste, Space Sciences Laboratory, Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, University of Cambridge, Institut polytechnique de Grenoble, Purdue University, Imperial College London, California Institute of Technology, Academia Sinica, Niels Bohr Institute, INAF, Osservatorio Astronomico di Roma, LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres, Universidade do Porto, University of Oslo, Università La Sapienza, Université Sorbonne Paris Cité, Institut national des sciences de l'Univers, Ludwig Maximilian University of Munich, Urbanización Villafranca Del Castillo, Max-Planck-Institut für Astrophysik, University of Geneva, Instituto de Astrofísica de Canarias, University of Warsaw, Institut national de physique nucléaire et de physique des particules, Danmarks Tekniske Universitet, University of Miami, Princeton University, University of Helsinki, European Southern Observatory Santiago, University of California Davis, University of Sussex, University of Edinburgh, University of Innsbruck, INAF Istituto di Radioastronomia, University of Padova, Université Paris-Diderot, University of California Santa Barbara, CEA Saclay, CNRS, Stanford University, University of Southern California, CNR-ENEA-EURATOM Association, Institute for Space Sciences, University College London, University of British Columbia, Lawrence Berkeley National Laboratory, Russian Academy of Sciences, European Space Research and Technology Centre, Aalto-yliopisto, and Aalto University

Subjects
Astrophysics::Cosmology and Extragalactic Astrophysics, clusters: intracluster medium [Galaxies], galaxies: clusters [X-rays], clusters: general [Galaxies], Cosmic background radiation, observations [Cosmology]
Abstract

We present the final results from the XMM-Newton validation follow-up of new Planck galaxy cluster candidates. We observed 15 new candidates, detected with signal-to-noise ratios between 4.0 and 6.1 in the 15.5-month nominal Planck survey. The candidates were selected using ancillary data flags derived from the ROSAT All Sky Survey (RASS) and Digitized Sky Survey all-sky maps, with the aim of pushing into the low SZ flux, high-z regime and testing RASS flags as indicators of candidate reliability. Fourteen new clusters were detected by XMM-Newton, ten single clusters and two double systems. Redshifts from X-ray spectroscopy lie in the range 0.2 to 0.9, with six clusters at z > 0.5. Estimated masses (M500) range from 2.5 × 1014 to 8 × 1014 MM·. We discuss our results in the context of the full XMM-Newton validation programme, in which 51 new clusters have been detected. This includes four double and two triple systems, some of which are chance projections on the sky of clusters at different redshifts. We find thatassociation with a source from the RASS-Bright Source Catalogue is a robust indicator of the reliability of a candidate, whereas association with a source from the RASS-Faint Source Catalogue does not guarantee that the SZ candidate is a bona fide cluster. Nevertheless, most Planck clusters appear in RASS maps, with a significance greater than 2σ being a good indication that the candidate is a real cluster. Candidate validation from association with SDSS galaxy overdensity at z > 0.5 is also discussed. The full sample gives a Planck sensitivity threshold of Y500 4 × 10-4 arcmin2, with indication for Malmquist bias in the Y X-Y500 relation below this threshold. The corresponding mass threshold depends on redshift. Systems with M500 > 5 × 1014 MM at z > 0.5 are easily detectable with Planck. The newly-detected clusters follow the YX-Y500 relation derived from X-ray selected samples. Compared to X-ray selected clusters, the new SZ clusters have a lower X-ray luminosity on average for their mass. There is no indication of departure from standard self-similar evolution in the X-ray versus SZ scaling properties. In particular, there is no significant evolution of the YX/Y500 ratio. © ESO, 2013.

Published
2013

16. Planck intermediate results

Author

Ade, P. A R, Aghanim, N., Arnaud, M., Ashdown, M., Atrio-Barandela, F., Aumont, J., Baccigalupi, C., Balbi, A., Banday, A. J., Barreiro, R. B., Bartlett, J. G., Battaner, E., Benabed, K., Benoît, A., Bernard, J. P., Bersanelli, M., Bhatia, R., Bikmaev, I., Böhringer, H., Bonaldi, A., Bond, J. R., Borrill, J., Bouchet, F. R., Bourdin, H., Burenin, R., Burigana, C., Cabella, P., Cardoso, J. F., Castex, G., Catalano, A., Cayón, L., Chamballu, A., Chary, R. R., Chiang, L. Y., Chon, G., Christensen, P. R., Clements, D. L., Colafrancesco, S., Colombo, L. P L, Comis, B., Coulais, A., Crill, B. P., Cuttaia, F., Da Silva, A., Dahle, H., Danese, L., Davis, R. J., De Bernardis, P., De Gasperis, G., De Zotti, G., Delabrouille, J., Démoclès, J., Désert, F. X., Diego, J. M., Dolag, K., Dole, H., Donzelli, S., Doré, O., Dörl, U., Douspis, M., Dupac, X., Efstathiou, G., Enßlin, T. A., Eriksen, H. K., Finelli, F., Flores-Cacho, I., Forni, O., Frailis, M., Franceschi, E., Frommert, M., Galeotta, S., Ganga, K., Génova-Santos, R. T., Giard, M., Gilfanov, M., Giraud-Héraud, Y., González-Nuevo, J., Górski, K. M., Gregorio, A., Gruppuso, A., Hansen, F. K., Harrison, D., Hempel, A., Henrot-Versillé, S., Hernández-Monteagudo, C., Herranz, D., Hildebrandt, S. R., Hivon, E., Hobson, M., Holmes, W. A., Hovest, W., Hurier, G., Jaffe, T. R., Jaffe, A. H., Jagemann, T., Jones, W. C., Juvela, M., Khamitov, I., Kisner, T. S., Kneissl, R., Knoche, J., Knox, L., Kunz, M., Kurki-Suonio, H., Lagache, G., Lamarre, J. M., Lasenby, A., Lawrence, C. R., Le Jeune, M., Leonardi, R., Lilje, P. B., Linden-Vørnle, M., López-Caniego, M., Lubin, P. M., Luzzi, G., MacÍas-Pérez, J. F., Maffei, B., Maino, D., Mandolesi, N., Maris, M., Marleau, F., Marshall, D. J., Martínez-González, E., Masi, S., Massardi, M., Matarrese, S., Matthai, F., Mazzotta, P., Mei, S., Melchiorri, A., Melin, J. B., Mendes, L., Mennella, A., Mitra, S., Miville-Deschênes, M. A., Moneti, A., Montier, L., Morgante, G., Munshi, D., Murphy, J. A., Naselsky, P., Nati, F., Natoli, P., Nørgaard-Nielsen, H. U., 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. W., Prunet, S., Puget, J. L., Rachen, J. P., Rebolo, R., Reinecke, M., Remazeilles, M., Renault, C., Ricciardi, S., Riller, T., Ristorcelli, I., Rocha, G., Roman, M., Rosset, C., Rossetti, M., Rubiño-Martín, J. A., Rusholme, B., Sandri, M., Savini, G., Schaefer, B. M., Scott, D., Smoot, G. F., Starck, J. L., Sudiwala, R., Sunyaev, R., Sutton, D., Suur-Uski, A. S., Sygnet, J. F., Tauber, J. A., Terenzi, L., Toffolatti, L., Tomasi, M., Tristram, M., Valenziano, L., Van Tent, B., Vielva, P., Villa, F., Vittorio, N., Wade, L. A., Wandelt, B. D., Welikala, N., White, S. D M, Yvon, D., Zacchei, A., Zonca, A., 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), 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), Département de Physique des Particules (ex SPP) (DPP), 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, Instituto de Astrofisica de Canarias (IAC), Planck Collaboration, 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), Cardiff University, Université Paris-Sud, Université Paris Diderot, Kavli Institute for Cosmology Cambridge, International School for Advanced Studies, Università di Roma Tor Vergata, IRAP, Universidad de Cantabria, Facultad de Ciencias, University of Manchester, UMR7095, Institut polytechnique de Grenoble, CNRS, INAF/IASF Milano, ALMA Santiago Central Offices, Kazan Federal University, Max Planck Institute for Extraterrestrial Physics, University of Toronto, Space Sciences Laboratory, Université Sorbonne Paris Cité, Russian Academy of Sciences, Istituto di Astrofisica Spaziale e Fisica Cosmica di Bologna, University of Cambridge, Purdue University, Imperial College London, California Institute of Technology, Academia Sinica, INAF, Osservatorio Astronomico di Roma, LERMA - Laboratoire d'Etudes du Rayonnement et de la Matiere en Astrophysique et Atmospheres, Universidade do Porto, University of Oslo, Università La Sapienza, Ludwig Maximilian University of Munich, Jet Propulsion Laboratory, Urbanización Villafranca Del Castillo, Max-Planck-Institut für Astrophysik, INAF - Osservatorio Astronomico di Trieste, Instituto de Astrofísica de Canarias, University of Warsaw, University of Miami, University of Helsinki, Akdeniz University, European Southern Observatory Santiago, University of Sussex, Danmarks Tekniske Universitet, University of Innsbruck, INAF Istituto di Radioastronomia, University of Padova, University of California Santa Barbara, Niels Bohr Institute, Stanford University, University of Southern California, CNR-ENEA-EURATOM Association, Institute for Space Sciences, University College London, University of British Columbia, Lawrence Berkeley National Laboratory, Special Astrophysical Observatory of the Russian Academy of Sciences, European Space Research and Technology Centre, Aalto-yliopisto, Aalto University, Universidad de Salamanca, Telecom ParisTech, University of Geneva, Princeton University, University of California Davis, and Institut für Theoretische Astrophysik

Subjects
Large-scale structure of Universe, galaxies: clusters: general, cosmology: observations, clusters: intracluster medium [Galaxies], galaxies: clusters [X-rays], Astrophysics::Cosmology and Extragalactic Astrophysics, cosmic background radiation, large-scale structure of Universe, clusters: general [Galaxies], Cosmic background radiation, observations [Cosmology], [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], Astrophysics::Galaxy Astrophysics
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. © 2013 ESO.

Published
2013
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