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Imaging the cosmic microwave background with the Arcminute Cosmology Bolometer Array Receiver

Peterson, J. B., Romer, A. K., Gomez, P. L., Ade, Peter A. R., Bock, J. J., Bond, J. R., Contaldi, C. R., Pogosyan, D., Cantalupo, C., Daub, M. D., Holzapfel, W. L., Leuker, M., Newcomb, M., Woolsey, D., Kuo, C. L., Lange, A. E., Runyan, M. C., Ruhl, J., Goldstein, J. H. and Torbet, E. 2005. Imaging the cosmic microwave background with the Arcminute Cosmology Bolometer Array Receiver. Presented at: Maps of the Cosmos. IAU Symposium 216., Sydney, Australia, 14-17 July 2003. Published in: Colless, Matthew, Staveley-Smith, Lister and Stathakis, Raylee eds. Maps of the Cosmos : Proceedings of the 216th Symposium of the International Astronomical Union held during the IAU General Assembly XXV, Sydney, Australia, 14-17 July 2003. IAU Symposium San Francisco, CA: Astronomical Society of the Pacific for IAU, pp. 43-50.

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Abstract

Arcminute Cosmology Bolometer Array Receiver (Acbar) is 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 2.1 m Viper telescope at the South Pole in January 2001 and the results presented here incorporate data through July 2002. The power spectrum of the CMB at 150 GHz over the range ℓ=150 - 3000 measured by Acbar is presented along with estimates for the values of the cosmological parameters within the context of ΛCDM models. The inclusion of Ω_Λ greatly improves the fit to the power spectrum. Three-frequency images of the SZ decrement/increment are also presented for the galaxy cluster 1E0657-67.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Publisher: Astronomical Society of the Pacific for IAU
ISBN: 9781583812020
Related URLs:
Last Modified: 04 Jun 2017 04:37
URI: http://orca.cf.ac.uk/id/eprint/41564

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