Planck intermediate results: XLI. A map of lensing-induced B -modes

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.

Planck intermediate results: XLI. A map of lensing-induced B -modes

Access rights

openAccess

publishedVersion

A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

This publication is imported from Aalto University research portal.
View publication in the Research portal (opens in new window)
View/Open full text file from the Research portal (opens in new window)

Authors

Ade, P. A R

Aghanim, N.

Ashdown, M.

Aumont, J.

Baccigalupi, C.

Banday, A. J.

Barreiro, R. B.

Bartolo, N.

Basak, S.

Battaner, E.

Date

2016-12-01

Department

Department of Radio Science and Engineering
Metsähovi Radio Observatory

Language

en

Pages

19

Series

Astronomy & Astrophysics, Volume 596

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.

Keywords

Cosmic background radiation, Cosmology: observations, Gravitational lensing: weak, Polarization

DOI

10.1051/0004-6361/201527932

Citation

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 2016, 'Planck intermediate results : XLI. A map of lensing-induced B -modes', Astronomy & Astrophysics, vol. 596, A102. https://doi.org/10.1051/0004-6361/201527932

Permanent link to this item

https://urn.fi/URN:NBN:fi:aalto-201703283223

Collections

[article-cris] Perustieteiden korkeakoulu / SCI

Show all metadata

Planck intermediate results: XLI. A map of lensing-induced B -modes

Access rights

URL

Journal Title

Journal ISSN

Volume Title

Authors

Date

Department

Major/Subject

Mcode

Degree programme

Language

Pages

Series

Abstract

Description

Keywords

Other note

DOI

Citation

Permanent link to this item

Collections