Results from the REFLEX Cluster Survey

Abstract

Based on the ROSAT All-Sky Survey we have conducted a large redshift survey as an ESO key programme to identify and secure redshifts for the X-ray brightest clusters found in the southern hemisphere. We present first results for a highly controlled sample for a flux limit of 3 10-12 erg/s/cm+2 comprising 475 clusters (87% with redshifts). The logN-logS function of the sample shows an almost perfect Euclidian slope and a preliminary X-ray luminosity function is presented.

4 pages, 3 figures, To appear in the proceedings of the 14th IAP meeting: "Wide Field Surveys in Cosmology", Y. Mellier & S. Colombi (eds.)