Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-08-19
Astronomy and Astrophysics
Astrophysics
4 pages, 2 figures, to appear in the proceedings of the XXXIXth Rencontres de Moriond "Exploring the Universe", La Thuile, Ita
Scientific paper
We present a refined angular power spectrum of the Cosmic Microwave Background (CMB) anisotropies using the Archeops last flight data. The estimation of the Cl described here is performed using Xspect, a method which uses the cross-power spectra of the maps of 6 different detectors. It covers multipole range from l=10 to l=700 in 25 bins and confirms a strong evidence of a plateau followed by the presence of two Doppler peaks. Archeops was conceived as a precursor of the Planck HFI instrument by using the same optical design and the same technology for the detectors and their cooling. Since last publication, specific methods have been developed, extra bolometers were used and the sky coverage, of about 20%, is almost twice larger. We also present a comparison with first-year WMAP data both using individually spectra and by computing the cross-power spectrum of the two experiments.
for the Archeops Collaboration
Tristram Matthieu
No associations
LandOfFree
A new estimation of the Archeops angular power spectrum does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A new estimation of the Archeops angular power spectrum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A new estimation of the Archeops angular power spectrum will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-83674