A search for distant X-ray galaxy clusters
天体物理学
2007-05-23 v1
摘要
We report on the progress of our search for serendipitous distant X-ray galaxy clusters in the ROSAT PSPC pointed observations archive. The initial aim of our work is to measure the X-ray luminosity function of clusters down to 4 x 10^-14 erg cm^-2 s^-1 and so test the claims of cluster evolution at moderate redshifts. We have R band images and spectroscopy for 45 extended sources detected in 50 of the 100 deepest southern fields. A preliminary analysis suggests we cover a range of distances, from nearby clusters to possible distant clusters, z \simeq 1.0.
引用
@article{arxiv.astro-ph/9512028,
title = {A search for distant X-ray galaxy clusters},
author = {D. J. Burke and C. A. Collins and R. C. Nichol and A. K. Romer and B. Holden and R. M. Sharples and M. P. Ulmer},
journal= {arXiv preprint arXiv:astro-ph/9512028},
year = {2007}
}
备注
2 pages, including 1 Postscript figure. Includes required style files. To appear in Proceedings of the Wuerzburg X-ray Conference, September 25th to 29th, 1995 (MPE Report)