The ARCHEOPS power spectrum of the CMB temperature ansiotropies

Details The ARCHEOPS power spectrum of the CMB temperature ansiotropies The ARCHEOPS power spectrum of the CMB temperature ansiotropies

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sf2a.conf..711r&link_type=abstract

SF2A-2004: Semaine de l'Astrophysique Francaise, meeting held in Paris, France, June 14-18, 2004. Edited by F. Combes, D. Barret

Astronomy and Astrophysics

Astrophysics

Scientific paper

Archeops is a balloon-borne instrument conceived as a precursor of the Planck-HFI instrument by using the same optical design and the same technology for the cooling and for the detectors at four frequency bands (143, 217, 353 and 545 GHz). A new analysis was performed using the 6 most sensitive photometers (with respect to two bolometers for previous analysis) of the two CMB bands 143 and 217 GHz. Data are improved compared to the previous published work : 20% sky coverage, higher resolution (nside = 512), better beam modelization, more accurate ozone substraction, high-frequency decorrelation. It leads to a high signal-to-noise ratio determination of the temperature power spectrum comparable to the WMAP ones over angular scales from l=10 to l=500.

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