Looking for the S-Z Effect towards Distant ROSAT Clusters of Galaxies

Abstract

We report on observations of the Sunyaev-Zeldovich effect towards X-ray ROSAT clusters taken with a double channel (1.2 and 2 mm) photometer installed at the focus of the 15m SEST antenna in Chile. This paper describes the first results obtained for the high-z clusters S1077, A2744 and S295. Marginal detections were found for A2744 and at 1 mm for S1077. We discuss these data in terms of contamination of sources along the line of sight and give a constraint on the amplitude of the kinematic effect.

17 pg Latex file (using aasms4.sty) gzip'd tar'd uuencoded file including 1 ps figure, ApJ Letter in press

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• A multi-wavelength strong lensing analysis of baryons and dark matter in the dynamically active cluster AC 114
• Observations of the Sunyaev-Zel'dovich effect at high angular resolution towards the galaxy clusters A665, A2163 and CL0016+16
• Optical (VRI) Photometry in the Field of the Galaxy Cluster AC 118 at z=0.31
• Cosmological Implications of Galaxy Clusters in X-Ray, Millimeter, and Submillimeter Bands