3 papers
astro-ph2002
Powerful obscured AGN in Chandra cluster fields
P. Gandhi, A. C. Fabian, C. S. Crawford
Models for the origin of the hard X-ray background have suggested that sources with the most accretion activity lie hidden in highly obscured AGN. We report on our study of hard, s…
astro-ph2001
Multi-wavelength observations of serendipitous Chandra sources
P. Gandhi, C. S. Crawford, A. C. Fabian +4
We describe progress in a programme to study a sample of sources typical of those which contribute a large fraction of the hard X-ray background. The sources are selected from the…
astro-ph1995
X-ray evolution in the ROSAT Brightest Cluster Sample
H. Ebeling, S. W. Allen, C. S. Crawford +5
We present the X-ray luminosity function (XLF) of the ROSAT Brightest Cluster Sample (BCS), an X-ray selected, flux limited sample of 172 clusters of galaxies at compil…