421 citations · 4.6k across the 70 of their papers we have counts for
6 papers · 2 filters
X-ray variability in a deep, flux limited sample of QSOs
O. Almaini, A. Lawrence, T. Shanks +6
We present an analysis of X-ray variability in a flux limited sample of QSOs. Selected from our deep ROSAT survey, these QSOs span a wide range in redshift () and are ty…
The effect of radiative cooling on X-ray emission from clusters of galaxies
F. R. Pearce, H. M. P. Couchman, P. A. Thomas +1
In this paper we use state-of-the-art N-body hydrodynamic simulations of a cosmological volume of side 100Mpc to produce many galaxy clusters simultaneously in both the standard co…
Zw 1718.1-0108: a highly disturbed galaxy cluster at low Galactic latitude
K. Iwasawa, S. Ettori, A. C. Fabian +2
We report the discovery of highly distorted X-ray emission associated with the nearby cluster Zw1718.1-0108, one of whose dominant members is the powerful radio galaxy 3C353. This…
The REFLEX Cluster Survey: Observing Strategy and First Results on Large-Scale Structure
L. Guzzo, H. Boehringer, P. Schuecker +9
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 select…
The ROSAT Brightest Cluster Sample (BCS): -- III. Optical spectra of the central cluster galaxies
C. S. Crawford, S. W. Allen, H. Ebeling +2
We present new spectra of dominant galaxies in X-ray selected clusters, which combine with our previously published spectra to form a sample of 256 dominant galaxies in 215 cluster…
X-ray and lensing results on the cluster around the powerful radio galaxy 4C+55.16
K. Iwasawa, S. W. Allen, A. C. Fabian +2
We present results from ASCA and ROSAT HRI observations of the powerful radio galaxy 4C+55.16 at redshift 0.24. Extended soft X-ray emission is imaged by the ROSAT HRI. The X-ray b…