The XMM-BCS galaxy cluster survey: I. The X-ray selected cluster catalog from the initial 6 deg$^2$
Abstract
The XMM-Newton - Blanco Cosmology Survey project (XMM-BCS) is a coordinated X-ray, optical and mid-infrared cluster survey in a field also covered by Sunyaev-Zel'dovich effect surveys by the South Pole Telescope and the Atacama Cosmology Telescope. The aim of the project is to study the cluster population in a 14 deg field. In this work, we present a catalog of 46 X-ray selected clusters from the initial 6 deg survey core. We describe the XMM-BCS source detection pipeline and derive physical properties of the clusters. We provide photometric redshift estimates derived from the BCS imaging data and spectroscopic redshift measurements for a low redshift subset of the clusters. We derive the cluster log N - log S relation using an approximation to the survey selection function and find it in good agreement with previous studies. We carry out an initial comparison between X-ray luminosity derived masses and masses from optical estimators from the Southern Cosmology Survey for a subset of the cluster sample. Optical masses based on cluster richness and total optical luminosity are found to be significantly higher than the X-ray values. (abridged)
Keywords
Cite
@article{arxiv.1111.0141,
title = {The XMM-BCS galaxy cluster survey: I. The X-ray selected cluster catalog from the initial 6 deg$^2$},
author = {R. Šuhada and J. Song and H. Böhringer and J. J. Mohr and G. Chon and A. Finoguenov and R. Fassbender and S. Desai and R. Armstrong and A. Zenteno and W. A. Barkhouse and E. Bertin and E. J. Buckley-Geer and S. M. Hansen and F. W. High and H. Lin and M. Mühlegger and C. C. Ngeow and D. Pierini and G. W. Pratt and M. Verdugo and D. L. Tucker},
journal= {arXiv preprint arXiv:1111.0141},
year = {2011}
}
Comments
Accepted to A&A. Version with full resolution images and better layout is available at the author or at A&A. 34 pages, 35 figures, 18 tables