Observations of the Sunyaev-Zel'dovich Effect with the Cosmic Background Imager

Details Observations of the Sunyaev-Zel'dovich Effect with the Cosmic Background Imager Observations of the Sunyaev-Zel'dovich Effect with the Cosmic Background Imager

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...19710401u&link_type=abstract

American Astronomical Society, 197th AAS Meeting, #104.01; Bulletin of the American Astronomical Society, Vol. 32, p.1576

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Scientific paper

We are engaged in a program with the Cosmic Background Imager (CBI), a 13-element interferometer recently installed at 5000 m in the Chilean Andes, to measure H0 with 10% accuracy through observations of the Sunyaev-Zel'dovich effect (SZE) in a sample of low-redshift clusters (z<0.1). Our focus on nearby objects allows us to study a well-defined, orientation unbiased sample, minimizing systematic errors due to cluster elongation. The large angular extent of our targets will also provide us with a better understanding of the effects of non-smooth and non-isothermal cluster gas on the H0 derivation. We present early results from our sample. We gratefully acknowledge support from NSF award AST-9802989, and PSU acknowledges support from an NSF Graduate Student Fellowship.

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