Altmetric

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

File Description SizeFormat 
aa27932-15.pdfPublished version43.53 MBAdobe PDFView/Open
Title: Planck intermediate results XLI. A map of lensing-induced B-modes.
Authors: Ade, PAR
Aghanim, N
Ashdown, M
Aumont, J
Baccigalupi, C
Banday, AJ
Barreiro, RB
Bartolo, N
Basak, S
Battaner, E
Benabed, K
Benoit-Levy, A
Bernard, J-P
Bersanelli, M
Bielewicz, P
Bock, JJ
Bonaldi, A
Bonavera, L
Bond, JR
Borrill, J
Bouchet, FR
Boulanger, F
Burigana, C
Butler, RC
Calabrese, E
Cardoso, J-F
Catalano, A
Chiang, HC
Christensen, PR
Clements, DL
Colombi, S
Colombo, LPL
Combet, C
Crill, BP
Curto, A
Cuttaia, F
Danese, L
Davis, RJ
De Bernardis, P
De Zotti, G
Delabrouille, J
Dickinson, C
Diego, JM
Dore, O
Ducout, A
Dupac, X
Elsner, F
Ensslin, TA
Eriksen, HK
Finelli, F
Forni, O
Frailis, M
Fraisse, AA
Franceschi, E
Galeotta, S
Galli, S
Ganga, K
Ghosh, T
Giard, M
Giraud-Heraud, Y
Gjerlow, E
Gonzalez-Nuevo, J
Gorski, KM
Gruppuso, A
Gudmundsson, JE
Harrison, DL
Hernandez-Monteagudo, C
Herranz, D
Hildebrandt, SR
Hornstrup, A
Hovest, W
Hurier, G
Jaffe, AH
Jones, WC
Keihanen, E
Keskitalo, R
Kisner, TS
Knoche, J
Knox, L
Kunz, M
Kurki-Suonio, H
Lagache, G
Lahteenmaki, A
Lamarre, J-M
Lasenby, A
Lattanzi, M
Leonardi, R
Levrier, F
Lilje, PB
Linden-Vornle, M
Lopez-Caniego, M
Lubin, PM
Macias-Perez, JF
Maffei, B
Maggie, G
Maino, D
Mandolesi, N
Mangilli, A
Maris, M
Martin, PG
Martinez-Gonzalez, E
Masi, S
Matarrese, S
Meinhold, PR
Melchiorri, A
Mennella, A
Migliaccio, M
Mitra, S
Miville-Deschenes, M-A
Moneti, A
Montier, L
Morgante, G
Mortlock, D
Moss, A
Munshi, D
Murphy, JA
Naselsky, P
Nati, F
Natoli, P
Netterfield, CB
Norgaard-Nielsen, HU
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, GW
Rachen, JP
Reinecke, M
Remazeilles, M
Renault, C
Renzi, A
Ristorcelli, I
Rocha, G
Rosset, C
Rossetti, M
Roudier, G
Rubino-Martin, JA
Rusholme, B
Sandri, M
Santos, D
Savelainen, M
Savini, G
Scott, D
Spencer, LD
Stolyarov, V
Stompor, R
Sudiwala, R
Sunyaev, R
Sutton, D
Suur-Uski, A-S
Sygnet, J-F
Tauber, JA
Terenzi, L
Toffolatti, L
Tomasi, M
Tristram, M
Tucci, M
Tuovinen, J
Valenziano, L
Valiviita, J
Van Tent, B
Vielva, P
Villa, F
Wade, LA
Wandelt, BD
Wehus, IK
Yvon, D
Zacchei, A
Zonca, A
Item Type: Journal Article
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 <∼ ` <∼ 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.
Issue Date: 12-Dec-2016
Date of Acceptance: 7-Sep-2016
URI: http://hdl.handle.net/10044/1/59954
DOI: https://dx.doi.org/10.1051/0004-6361/201527932
ISSN: 0004-6361
Publisher: EDP Sciences
Journal / Book Title: Astronomy and Astrophysics
Volume: 596
Copyright Statement: © ESO 2016
Sponsor/Funder: Science and Technology Facilities Council (STFC)
Science and Technology Facilities Council (STFC)
Science and Technology Facilities Council (STFC)
Science and Technology Facilities Council (STFC)
Science and Technology Facilities Council (STFC)
Science and Technology Facilities Council (STFC)
Science and Technology Facilities Council [2006-2012]
Funder's Grant Number: ST/F01239X/1
ST/H001239/1
ST/J001368/1
ST/K001051/1
ST/K004131/1
ST/N001206/1
ST/K001051/1
Keywords: Science & Technology
Physical Sciences
Astronomy & Astrophysics
cosmology: observations
cosmic background radiation
polarization
gravitational lensing: weak
MICROWAVE BACKGROUND POLARIZATION
INFLATIONARY UNIVERSE SCENARIO
GRAVITY-WAVES
CMB
RECONSTRUCTION
COSMOLOGY
PROSPECTS
FLATNESS
HORIZON
SPHERE
astro-ph.CO
0201 Astronomical And Space Sciences
Publication Status: Published
Article Number: ARTN A102
Appears in Collections:Physics
Astrophysics
Faculty of Natural Sciences



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Creative Commonsx