version française rss feed
HAL : in2p3-00150113, version 1

Fiche concise  Récupérer au format
First Season QUaD CMB Temperature and Polarization Power Spectra
Ade P., Bock J., Bowden M., Brown M.L., Cahill G. et al
Astrophysical Journal 674 (2008) 22-28 - http://hal.in2p3.fr/in2p3-00150113
Physique/Astrophysique/Cosmologie et astrophysique extra-galactique
Planète et Univers/Astrophysique/Cosmologie et astrophysique extra-galactique
Planète et Univers/Astrophysique
First Season QUaD CMB Temperature and Polarization Power Spectra
P. Ade, J. Bock, M. Bowden, M. L. Brown, G. Cahill, J. E. Carlstrom, P. G. Castro, S. Church, T. Culverhouse, R. Friedman, K. Ganga1, W. K. Gear, J. Hinderks, J. Kovac, A. E. Lange, E. Leitch, S. J. Melhuish, J. A. Murphy, A. Orlando, R. Schwarz, C. O'Sullivan, L. Piccirillo, C. Pryke, N. Rajguru, B. Rusholme, A. N. Taylor, K. L. Thompson, E. Y. S. Wu, M. Zemcov
1 :  APC - UMR 7164 - AstroParticule et Cosmologie
CNRS : UMR7164 – IN2P3 – Observatoire de Paris – Université Paris VII - Paris Diderot – CEA : DSM/IRFU
APC - UMR 7164, Université Paris Diderot, 10 rue Alice Domon et Léonie Duquet, case postale 7020, F-75205 Paris Cedex 13
APC - Cosmologie et Gravitation
QUaD is a bolometric CMB polarimeter sited at the South Pole, operating at frequencies of 100 and 150 GHz. In this paper we report preliminary results from the first season of operation (austral winter 2005). All six CMB power spectra are presented derived as cross spectra between the 100 and 150 GHz maps using 67 days of observation in a low foreground region of approximately 60 deg2. These data are a small fraction of the data acquired to date. The measured spectra are consistent with the ΛCDM cosmological model. We perform jackknife tests that indicate that the observed signal has negligible contamination from instrumental systematics. In addition, by using a frequency jackknife we find no evidence for foreground contamination.

Articles dans des revues avec comité de lecture
Astrophysical Journal (Astrophys. J.)
Publisher American Astronomical Society
ISSN 0004-637X 

7 pages, 5 figures, submitted to ApJ
Lien vers le texte intégral :