SIMBAD references

1998A&A...335..467T - Astronomy and Astrophysics, volume 335, 467-478 (1998/7-2)

Identification of soft high galactic latitude RASS X-ray sources. I. A complete count-rate limited sample.

THOMAS H.-C., BEUERMANN K., REINSCH K., SCHWOPE A.D., TRUEMPER J. and VOGES W.

Abstract (from CDS):

We present a summary of spectroscopic identifications for a complete sample of bright soft high galactic latitude X-ray sources drawn from the ROSAT All-Sky Survey which have PSPC count-rates CR>0.5cts/s and hardness ratios HR1<0. Of a total of 397 sources, 270 had 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. We present spectroscopic identifications of 108 sources and other identifications for 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.

Abstract Copyright:

Journal keyword(s): X-rays: galaxies - X-rays: stars - galaxies: Seyfert - novae, cataclysmic variables - white dwarfs - stars: coronae

VizieR on-line data: <Available at CDS (J/A+A/335/467): table2.dat table3.dat notes.dat>

Simbad objects: 393

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