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Planck 2013 results. XXVII. Doppler boosting of the CMB: Eppur si muove

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Title: Planck 2013 results. XXVII. Doppler boosting of the CMB: Eppur si muove
Authors: Aghanim, N
Armitage-Caplan, C
Arnaud, M
Ashdown, M
Atrio-Barandela, F
Aumont, J
Baccigalupi, C
Banday, AJ
Barreiro, RB
Bartlett, JG
Benabed, K
Benoit-Levy, A
Bernard, J-P
Bersanelli, M
Bielewicz, P
Bobin, J
Bock, JJ
Bond, JR
Borrill, J
Bouchet, FR
Bridges, M
Burigana, C
Butler, RC
Cardoso, J-F
Catalano, A
Challinor, A
Chamballu, A
Chiang, HC
Chiang, L-Y
Christensen, PR
Clements, DL
Colombo, LPL
Couchot, F
Crill, BP
Curto, A
Cuttaia, F
Danese, L
Davies, RD
Davis, RJ
De Bernardis, P
De Rosa, A
De Zotti, G
Delabrouille, J
Diego, JM
Donzelli, S
Dore, O
Dupac, X
Efstathiou, G
Ensslin, TA
Eriksen, HK
Finelli, F
Forni, O
Frailis, M
Franceschi, E
Galeotta, S
Ganga, K
Giard, M
Giardino, G
Gonzalez-Nuevo, J
Gorski, KM
Gratton, S
Gregorio, A
Gruppuso, A
Hansen, FK
Hanson, D
Harrison, DL
Helou, G
Hildebrandt, SR
Hivon, E
Hobson, M
Holmes, WA
Hovest, W
Huffenberger, KM
Jones, WC
Juvela, M
Keihanen, E
Keskitalo, R
Kisner, TS
Knoche, J
Knox, L
Kunz, M
Kurki-Suonio, H
Lahteenmaki, A
Lamarre, J-M
Lasenby, A
Laureijs, RJ
Lawrence, CR
Leonardi, R
Lewis, A
Liguori, M
Lilje, PB
Linden-Vornle, M
Lopez-Caniego, M
Lubin, PM
Macias-Perez, JF
Mandolesi, N
Maris, M
Marshall, DJ
Martin, PG
Martinez-Gonzalez, E
Masi, S
Massardi, M
Matarrese, S
Mazzotta, P
Meinhold, PR
Melchiorri, A
Mendes, L
Migliaccio, M
Mitra, S
Moneti, A
Montier, L
Morgante, G
Mortlock, D
Moss, A
Munshi, D
Naselsky, P
Nati, F
Natoli, P
Norgaard-Nielsen, HU
Noviello, F
Novikov, D
Novikov, I
Osborne, S
Oxborrow, CA
Pagano, L
Pajot, F
Paoletti, D
Pasian, F
Patanchon, G
Perdereau, O
Perrotta, F
Piacentini, F
Pierpaoli, E
Pietrobon, D
Plaszczynski, S
Pointecouteau, E
Polenta, G
Ponthieu, N
Popa, L
Pratt, GW
Prezeau, G
Puget, J-L
Rachen, JP
Reach, WT
Reinecke, M
Ricciardi, S
Riller, T
Ristorcelli, I
Rocha, G
Rosset, C
Rubino-Martin, JA
Rusholme, B
Santos, D
Savini, G
Scott, D
Seiffert, MD
Shellard, EPS
Spencer, LD
Sunyaev, R
Sureau, F
Suur-Uski, A-S
Sygnet, J-F
Tauber, JA
Tavagnacco, D
Terenzi, L
Toffolatti, L
Tomasi, M
Tristram, M
Tucci, M
Tuerler, M
Valenziano, L
Valiviita, J
Van Tent, B
Vielva, P
Villa, F
Vittorio, N
Wade, LA
Wandelt, BD
White, M
Yvon, D
Zacchei, A
Zibin, JP
Zonca, A
Item Type: Journal Article
Abstract: Our velocity relative to the rest frame of the cosmic microwave background (CMB) generates a dipole temperature anisotropy on the sky which has been well measured for more than 30 years, and has an accepted amplitude of v/c = 1.23 × 10-3, or v = 369. In addition to this signal generated by Doppler boosting of the CMB monopole, our motion also modulates and aberrates the CMB temperature fluctuations (as well as every other source of radiation at cosmological distances). This is an order 10-3 effect applied to fluctuations which are already one part in roughly 105, so it is quite small. Nevertheless, it becomes detectable with the all-sky coverage, high angular resolution, and low noise levels of the Planck satellite. Here we report a first measurement of this velocity signature using the aberration and modulation effects on the CMB temperature anisotropies, finding a component in the known dipole direction, (l,b) = (264°,48°), of 384 km s-1 ± 78 km s-1 (stat.) ± 115 km s-1 (syst.). This is a significant confirmation of the expected velocity.
Issue Date: 1-Nov-2014
Date of Acceptance: 3-Jan-2014
URI: http://hdl.handle.net/10044/1/60474
DOI: https://dx.doi.org/10.1051/0004-6361/201321556
ISSN: 1432-0746
Publisher: EDP SCIENCES S A
Journal / Book Title: ASTRONOMY & ASTROPHYSICS
Volume: 571
Copyright Statement: © ESO, 2014. Reproduced with permission from Astronomy & Astrophysics, © ESO.
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 (STFC)
Science and Technology Facilities Council (STFC)
Science and Technology Facilities Council [2006-2012]
Funder's Grant Number: ST/H001239/1
ST/G003874/1
ST/I005765/1
ST/J004812/1
ST/J001368/1
ST/K001051/1
ST/L001314/1
ST/K004131/1
ST/K001051/1
Keywords: Science & Technology
Physical Sciences
Astronomy & Astrophysics
cosmology: observations
cosmic background radiation
reference systems
relativistic processes
SKY MAPS
MICROWAVE
ABERRATION
DIPOLE
ANISOTROPY
astro-ph.CO
0201 Astronomical And Space Sciences
Publication Status: Published
Article Number: ARTN A27
Online Publication Date: 2014-10-29
Appears in Collections:Astrophysics
Faculty of Natural Sciences



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