High galactic latitude RASS X-ray sources (Thomas+ 1998)

Details High galactic latitude RASS X-ray sources (Thomas+ 1998) High galactic latitude RASS X-ray sources (Thomas+ 1998)

Nov 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998ycat..33350467t&link_type=abstract

VizieR On-line Data Catalog: J/A+A/335/467. Originally published in: 1998A&A...335..467T

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X-Ray Sources, Cross Identifications

Scientific paper

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. (3 data files).

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