Planck 2013 results. XVII. Gravitational lensing by large-scale structure

Ade, P. A. R. ; Aghanim, N. ; Armitage-Caplan, C. ; Arnaud, M. ; Ashdown, M. ; Atrio-Barandela, E. ; Aumont, J. ; Baccigalupi, C. ; Banday, A. J. ; Barreiro, R. B. ; Bartlett, J. G. ; Basak, S. ; Battaner, E. ; Benabed, K. ; Benoit, A. ; Benoit-Levy, A. ; Bernard, J. -P. ; Bersanelli, M. ; Bielewicz, P. ; Bobin, J. ; Bock, J. J. ; Bonaldi, A. ; Bonavera, L. ; Bond, J. R. ; Borrill, J. ; Bouchet, F. R. ; Bridges, M. ; Bucher, M. ; Burigana, C. ; Butler, R. C. ; Cardoso, J. -F. ; Catalano, A. ; Challinor, A. ; Chamballu, A. ; Chiang, H. C. ; Chiang, L. -Y ; Christensen, P. R. ; Church, S. ; Clements, D. L. ; Colombi, S. ; Colombo, L. P. L. ; Couchot, F. ; Coulais, A. ; Crill, B. P. ; Curto, A. ; Cuttaia, F. ; Danese, L. ; Davies, R. D. ; Davis, R. J. ; De Bernardis, P. ; De Rosa, A. ; De Zotti, G. ; Dechelette, T. ; Delabrouille, J. ; Delouis, J. -M. ; Desert, F. -X. ; Dickinson, C. ; Diego, J. M. ; Dole, H. ; Donzelli, S. ; Dore, O. ; Douspis, M. ; Dunkley, J. ; Dupac, X. ; Efstathiou, G. ; Ensslin, T. A. ; Eriksen, H. K. ; Finelli, F. ; Forni, O. ; Frailis, M. ; Franceschi, E. ; Galeotta, S. ; Ganga, K. ; Giard, M. ; Giardino, G. ; Giraud-Heraud, Y. ; Gonzalez-Nuevo, J. ; Gorski, K. M. ; Gratton, S. ; Gregorio, A. ; Gruppuso, A. ; Gudmundsson, J. E. ; Hansen, F. K. ; Hanson, D. ; Harrison, D. ; Henrot-Versille, S. ; Hernandez-Monteagudo, C. ; Herranz, D. ; Hildebrandt, S. R. ; Hivon, E. ; Ho, S. ; Hobson, M. ; Holmes, W. A. ; Hornstrup, A. ; Hovest, W. ; Huffenberger, K. M. ; Jaffe, A. H. ; Jaffe, T. R. ; Jones, W. C. ; Juvela, M. ; Keihanen, E. ; Keskitalo, R. ; Kisner, T. S. ; Kneissl, R. ; Knoche, J. ; Knox, L. ; Kunz, M. ; Kurki-Suonio, H. ; Lagache, G. ; Lahteenmaki, A. ; Lamarre, J. -M. ; Lasenby, A. ; Laureijs, R. J. ; Lavabre, A. ; Lawrence, C. R. ; Leahy, J. P. ; Leonardi, R. ; Leon-Tavares, J. ; Lesgourgues, J. ; Lewis, A. ; Liguori, M. ; Lilje, P. B. ; Linden-Vornle, M. ; Lopez-Caniego, M. ; Lubin, P. M. ; Macias-Perez, J. F. ; Maffei, B. ; Maino, D. ; Mandolesi, N. ; Mangilli, A. ; Maris, M. ; Marshall, D. J. ; Martin, P. G. ; Martinez-Gonzalez, E. ; Masi, S. ; Massardi, M. ; Matarrese, S. ; Matthai, F. ; Mazzotta, P. ; Melchiorri, A. ; Mendes, L. ; Mennella, A. ; Migliaccio, M. ; Mitra, S. ; Miville-Deschenes, 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. ; Norgaard-Nielsen, H. U. ; Noviello, F. ; Novikov, D. ; Novikov, I. ; Osborne, S. ; Oxborrow, C. A. ; Paci, F. ; Pagano, L. ; Pajot, F. ; Paoletti, D. ; Partridge, B. ; Pasian, F. ; Patanchon, G. ; Perdereau, O. ; Perotto, L. ; Perrotta, F. ; Piacentini, F. ; Piat, M. ; Pierpaoli, E. ; Pietrobon, D. ; Plaszczynski, S. ; Pointecouteau, E. ; Polenta, G. ; Ponthieu, N. ; Popa, L. ; Poutanen, T. ; Pratt, G. W. ; Prezeaul, G. ; Prunet, S. ; Puget, J. -L. ; Pullen, A. R. ; Rachen, J. P. ; Rebolo, R. ; Reinecke, M. ; Remazeilles, M. ; Renault, C. ; Ricciardi, S. ; Riller, T. ; Ristorcelli, I. ; Rocha, G. ; Rosset, C. ; Roudier, G. ; Rowan-Robinson, M. ; Rubino-Martin, J. A. ; Rusholme, B. ; Sandri, M. ; Santos, D. ; Savini, G. ; Scott, D. ; Seiffert, M. D. ; Shellard, E. P. S. ; Smith, K. ; Spencer, L. D. ; Starck, J. -L. ; Stolyarov, V. ; Stompor, R. ; Sudiwala, R. ; Sunyaev, R. ; Sureau, E. ; Sutton, D. ; Suur-Uski, A. -S. ; Sygnet, J. -F. ; Tauber, J. A. ; Tavagnacco, D. ; Terenzi, L. ; Toffolatti, L. ; Tomasi, M. ; Tristram, M. ; Tucci, M. ; Tuovinen, J. ; Umana, G. ; Valenziano, L. ; Valiviita, J. ; Van Tent, B. ; Vielva, P. ; Villa, F. ; Vittorio, N. ; Wade, L. A. ; Wandelt, B. D. ; White, M. ; White, S. D. M. ; Yvon, D. ; Zacchei, A. ; Zonca, A. ; Planck Collaboration

On the arcminute angular scales probed by Planck, the cosmic microwave background (CMB) anisotropies are gently perturbed by gravitational lensing. Here we present a detailed study of this effect, detecting lensing independently in the 100, 143, and 217 GHz frequency bands with an overall significance of greater than 25 sigma. We use the temperature-gradient correlations induced by lensing to reconstruct a (noisy) map of the CMB lensing potential, which provides an integrated measure of the mass distribution back to the CMB last-scattering surface. Our lensing potential map is significantly correlated with other tracers of mass, a fact which we demonstrate using several representative tracers of large-scale structure. We estimate the power spectrum of the lensing potential, finding generally good agreement with expectations from the best-fitting ACDM model for the Planck temperature power spectrum, showing that this measurement at z = 1100 correctly predicts the properties of the lower-redshift, later-time structures which source the lensing potential. When combined with the temperature power spectrum, our measurement provides degeneracy-breaking power for parameter constraints; it improves CMB-alone constraints on curvature by a factor of two and also partly breaks the degeneracy between the amplitude of the primordial perturbation power spectrum and the optical depth to reionization, allowing a measurement of the optical depth to reionization which is independent of large-scale polarization data. Discarding scale information, our measurement corresponds to a 4% constraint on the amplitude of the lensing potential power spectrum, or a 2% constraint on the root-mean-squared amplitude of matter fluctuations at z similar to 2.


Published in:
Astronomy & Astrophysics, 571
Year:
2014
Publisher:
Les Ulis Cedex A, Edp Sciences S A
ISSN:
0004-6361
Keywords:
Laboratories:




 Record created 2015-02-20, last modified 2018-12-03


Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)