Improved Measurements of the CMB Power Spectrum with ACBAR

We report improved measurements of temperature anisotropies in the cosmic microwave background (CMB) radiation made with the Arcminute Cosmology Bolometer Array Receiver (ACBAR). In this paper, we use a new analysis technique and include 30% more data from the 2001 and 2002 observing seasons than th...

Full description

Saved in:
Bibliographic Details
Published in:The Astrophysical journal 2007-08, Vol.664 (2), p.687-701
Main Authors: Kuo, C. L, Ade, P. A. R, Bock, J. J, Bond, J. R, Contaldi, C. R, Daub, M. D, Goldstein, J. H, Holzapfel, W. L, Lange, A. E, Lueker, M, Newcomb, M, Peterson, J. B, Reichardt, C, Ruhl, J, Runyan, M. C, Staniszweski, Z
Format: Article
Language:English
Subjects:
Astronomy
Earth, ocean, space
Exact sciences and technology
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We report improved measurements of temperature anisotropies in the cosmic microwave background (CMB) radiation made with the Arcminute Cosmology Bolometer Array Receiver (ACBAR). In this paper, we use a new analysis technique and include 30% more data from the 2001 and 2002 observing seasons than the first release to derive a new set of band-power measurements with significantly smaller uncertainties. The planet-based calibration used previously has been replaced by comparing the flux of RCW 38 as measured by ACBAR and BOOMERANG to transfer the WMAP-based BOOMERANG calibration to ACBAR. The resulting power spectrum is consistent with the theoretical predictions for a spatially flat, dark energy-dominated Lambda CDM cosmology, including the effects of gravitational lensing.
ISSN:0004-637X
1538-4357
DOI:10.1086/518401