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Title:
First results from the arcminute cosmology bolometer array receiver
Authors:
Runyan, M. C.; Ade, P. A. R.; Bock, J. J.; Bond, J. R.; Cantalupo, C.; Contaldi, C. R.; Daub, M. D.; Goldstein, J. H.; Gomez, P. L.; Holzapfel, W. L.; Kuo, C. L.; Lange, A. E.; Lueker, M.; Newcomb, M.; Peterson, J. B.; Pogosyan, D.; Romer, A. K.; Ruhl, J.; Torbet, E.; Woolsey, D.
Affiliation:
AA(Department of Physics, Math, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USA; ), AB(Department of Physics and Astronomy, Cardiff University, Wales CF24 3YB, UK), AC(Jet Propulsion Laboratory, Pasadena, CA 91125, USA), AD(), AE(Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA), AF(), AG(Department of Physics, University of California at Berkeley, Berkeley, CA 94720, USA), AH(Department of Physics, Case Western Reserve University, Cleveland, OH 44106, USA; Department of Physics, University of California, Santa Barbara, CA 93106, USA), AI(Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213, USA), AJ(Department of Physics, University of California at Berkeley, Berkeley, CA 94720, USA), AK(Department of Physics, University of California at Berkeley, Berkeley, CA 94720, USA; Department of Physics, Math, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USA), AL(Department of Physics, Math, and Astronomy, California Institute of Technology, Pasadena, CA 91125, USA), AM(Department of Physics, University of California at Berkeley, Berkeley, CA 94720, USA), AN(Department of Physics, University of California at Berkeley, Berkeley, CA 94720, USA), AO(Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213, USA), AP(), AQ(Department of Physics, Carnegie Mellon University, Pittsburgh, PA 15213, USA), AR(Department of Physics, Case Western Reserve University, Cleveland, OH 44106, USA), AS(Department of Physics, University of California, Santa Barbara, CA 93106, USA), AT(Department of Physics, University of California at Berkeley, Berkeley, CA 94720, USA)
Publication:
New Astronomy Reviews, Volume 47, Issue 11-12, p. 915-923. (NewAR Homepage)
Publication Date:
12/2003
Origin:
ELSEVIER
Keywords:
Cosmic microwave background - instrumentation, Observations
DOI:
10.1016/S1387-6473(03)00211-2
Bibliographic Code:
2003NewAR..47..915R

Abstract

We review the first science results from the Arcminute Cosmology Bolometer Array Receiver (ACBAR); a multi-frequency 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 l=150-3000 measured by ACBAR as well as estimates for the values of the cosmological parameters within the context of ΛCDM models. We find that the inclusion of ΩΛ 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.
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