activity
19982002
collaborators

5 papers

astro-ph2002

Galactic SNR candidates in the ROSAT all-sky survey

Daniel Schaudel, Werner Becker, Wolfgang Voges +3

Identified radio supernova remnants (SNRs) in the Galaxy comprise an incomplete sample of the SNR population due to various selection effects. ROSAT performed the first all-sky sur…

astro-ph2000

Identification of a complete sample of northern ROSAT All-sky survey X-ray sources. VII. The AGN subsample

I. Appenzeller, F. -J. Zickgraf, J. Krautter +1

In order to derive statistical properties of a complete X-ray selected sample of AGN we used the classification spectra of the RASS Selected Areas-North survey to study the luminos…

astro-ph1999

Search for GRB X-ray afterglows in the ROSAT all-sky survey

J. Greiner, D. H. Hartmann, W. Voges +3

We describe a search for X-ray afterglows from gamma-ray bursts using the ROSAT all-sky survey (RASS) data. If the emission in the soft X-ray band is significantly less beamed than…

astro-ph1998

Probing the Cosmic Large-Scale Structure with the REFLEX Cluster Survey : Profile of an ESO Key Programme

H. Böhringer, L. Guzzo, C. A. Collins +11

The paper describes the goals and first results of the ROSAT ESO Flux-Limited X-ray (REFLEX) Cluster Survey, a redshift survey of the X-ray brightest galaxy clusters in the ROSAT A…

astro-ph1998

On the evolutionary behaviour of BL Lac objects

N. Bade, V. Beckmann, N. G. Douglas +5

We present a new well defined sample of BL Lac objects selected from the ROSAT All-Sky Survey (RASS). The sample consists of 39 objects with 35 forming a flux limited sample down t…