The Sunyaev-Zeldovich effect towards three clusters of galaxies

Details The Sunyaev-Zeldovich effect towards three clusters of galaxies The Sunyaev-Zeldovich effect towards three clusters of galaxies

May 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984natur.309...34b&link_type=abstract

Nature (ISSN 0028-0836), vol. 309, May 3, 1984, p. 34, 35.

Astronomy and Astrophysics

Astronomy

76

Cosmic Noise, Cosmology, Galactic Clusters, Brightness Temperature, Radio Astronomy

Scientific paper

Observations of the clusters of galaxies 0016 + 16, Abell 665, and Abell 2218 obtained at 20.3 GHz using a 400-MHz-bandwidth tunable K-band maser receiver with overall noise temperature about 40 K on the 40-m telescope of the Owens Valley Radio Observatory during the period December 21, 1983 - January 3, 1984, are reported. The data are presented in tables and shown to provide strong evidence for the effect predicted by Sunyaev and Zeldovich (1972). The central microwave-background-temperature decrements (assuming zero residual systematic offset signal) are found to be -1.402 mK, -694 microK, and -700 microK, respectively.

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