150 citations · 343 across the 7 of their papers we have counts for
7 papers
A Sample of X-Ray active extragalactic Sources suitable for NIR Adaptive Optics Observations
J. Zuther, A. Eckart, W. Voges +1
Recent X-ray surveys have now resolved most of the X-ray background (XRB) into discrete sources. While this represents a break- through in the understanding of the XRB, the astroph…
The ROSAT All-Sky Survey: a Catalog of Clusters of Galaxies in a Region of 1 Ster around the South Galactic Pole
R. Cruddace, W. Voges, H. Boehringer +7
A field of 1.013 ster in the ROSAT all-sky survey (RASS), centered on the south galactic pole (SGP), has been searched in a systematic, objective manner for clusters of galaxies. T…
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…
A Flux-limited Sample of Bright Clusters of Galaxies from the Southern Part of the ROSAT All-Sky Survey: the Catalog and the LogN-LogS
S. De Grandi, H. Böhringer, L. Guzzo +8
We describe the selection of an X-ray flux-limited sample of bright clusters of galaxies in the southern hemisphere, based on the first analysis of the ROSAT All-Sky Survey data (R…
Broad band energy distribution of ROSAT detected quasars II: Radio-quiet objects
W. Yuan, W. Brinkmann, J. Siebert +1
A database of radio-quiet quasars detected with ROSAT is presented containing 846 quasars seen in the All-Sky Survey and/or in pointed PSPC observations. About 70% of the objects h…
Identification of selected sources from the ROSAT Galactic Plane Survey - I
C. Motch, P. Guillout, F. Haberl +6
We report on optical searches in the error circles of 93 ROSAT survey sources located at low galactic latitudes (|b| < 20 deg). These sources were extracted from the ROSAT Galactic…