ROSAT All-Sky Survey: Soft High Galactic-Latitude X-Ray Sources Virtual Observatory Resource

Authors
  1. Thomas et al.
  2. Published by
    NASA/GSFC HEASARC
Abstract
      A summary of spectroscopic identifications is presented for a complete sample of bright, soft, high galactic-latitude X-ray sources drawn from the ROSAT All-Sky Survey (RASS) which have PSPC count-rates CR>0.5cts/s, hardness ratios HR1<0, and galactic latitudes |b| > 20 degrees. Out of a total of 397 sources, 270 had previously catalogued counterparts, although most of these were not previously known as X-ray sources; of the remaining 127 sources neither X-ray nor optical properties were previously known. Of the whole sample of very soft X-ray sources 155 were also discovered by the Wide-Field-Camera on board ROSAT. Spectroscopic identifications are presented for 108 sources and other identifications for a further 18 sources; 1 source remains unidentified so far. In practically all cases a unique optical counterpart exists, facilitating identification. The largest source classes are AGN, magnetic cataclysmic variables, and hot white dwarfs This database was created by the HEASARC in April 1999 based on tables provided by the authors to CDS/ADC. This is a service provided by NASA HEASARC .
    
Keywords
  1. Survey Source
Bibliographic source
1998A&A...335..467T
See also HTML
https://heasarc.gsfc.nasa.gov/W3Browse/all/rasshgsoft.html
IVOA Identifier IVOID
ivo://nasa.heasarc/rasshgsoft

Access

IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://heasarc.gsfc.nasa.gov/xamin/vo/cone?showoffsets&table=rasshgsoft&
IVOA Table Access TAP
https://heasarc.gsfc.nasa.gov/xamin/vo/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
Web browser access HTML
https://heasarc.gsfc.nasa.gov/cgi-bin/W3Browse/w3query.pl?tablehead=name=heasarc_rasshgsoft&Action=More+Options&Action=Parameter+Search&ConeAdd=1

History

2025-09-12T00:00:00
Resource record created
2025-09-12

Contact

Name
NASA/GSFC HEASARC help desk
E-Mail
heasarc-vo at athena.gsfc.nasa.gov