First Results from the Arcminute Cosmology Bolometer Array Receiver

Details First Results from the Arcminute Cosmology Bolometer Array Receiver First Results from the Arcminute Cosmology Bolometer Array Receiver

2003-05-29

arxiv.org/abs/astro-ph/0305553v1

Astronomy and Astrophysics

Astrophysics

To be published in the proceedings of "The Cosmic Microwave Background and its Polarization", New Astronomy Reviews, (eds. S.

Scientific paper

We review the first science results from the Arcminute Cosmology Bolometer Array Receiver (ACBAR); a multifrequency millimeter-wave receiver optimized for observations of the Cosmic Microwave Background (CMB) and the Sunyaev-Zel'dovich (SZ) effect in clusters of galaxies. ACBAR was installed on the 2 m Viper telescope at the South Pole in January 2001 and the results presented here incorporate data through July 2002. We present the power spectrum of the CMB at 150 GHz over the range \ell = 150 - 3000 measured by ACBAR as well as estimates for the values of the cosmological parameters within the context of Lambda-CDM models. We find that the inclusion of Omega_Lambda greatly improves the fit to the power spectrum. We also observe a slight excess of small-scale anisotropy at 150 GHz; if interpreted as power from the SZ effect of unresolved clusters, the measured signal is consistent with CBI and BIMA within the context of the SZ power spectrum models tested.

Affiliated with

Also associated with

No associations

Rating

First Results from the Arcminute Cosmology Bolometer Array Receiver 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 First Results from the Arcminute Cosmology Bolometer Array Receiver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and First Results from the Arcminute Cosmology Bolometer Array Receiver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-606552