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The REFLEX Cluster Survey: Observing Strategy and First Results on Large-Scale Structure

L. Guzzo, H. Boehringer, P. Schuecker, C. A. Collins, S. Schindler, D. M. Neumann, S. De Grandi, R. Cruddace, G. Chincarini, A. C. Edge, P. A. Shaver, W. Voges

astro-pharXiv:astro-ph/9903396

Abstract

We give a general description of the optical observing strategy of the ROSAT-ESO Flux-Limited X-ray (REFLEX) cluster survey. This presently includes 460 clusters of galaxies selected from the ROSAT All-Sky Survey in the Southern hemisphere, to a flux limit of 3 10-12 erg s-1 cm-2. Redshifts are now measured for 95% of this sample. Work is in progress to complete this coverage, and then extend the sample to fainter fluxes. A few highlights on the large-scale distribution of REFLEX clusters and their clustering properties are also discussed.

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