Spectral Classification of Optical Counterparts toROSATAll-Sky Survey X-Ray Sources | Zendy

Diana Dragomir | Zendy; Philippe Roy | Zendy; Robert E. Rutledge | Zendy

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Spectral Classification of Optical Counterparts toROSATAll-Sky Survey X-Ray Sources

Author(s) -

Diana Dragomir,

Philippe Roy,

Robert E. Rutledge

Publication year - 2007

Publication title -

the astronomical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.61

H-Index - 271

eISSN - 1538-3881

pISSN - 0004-6256

DOI - 10.1086/516755

Subject(s) - rosat , astrophysics , stars , sky , physics , galaxy , spectral line , astronomy

Previous work statistically identified 5492 optical counterparts, withapproximately 90% confidence, from among the approximately 18,000 X-ray sourcesappearing in the ROSAT All-Sky Survey Bright Source Catalog (RASS/BSC). Usinglow resolution spectra in the wavelength range 3700-7900 angstroms, we presentspectroscopic classifications for 195 of these counterparts which have notpreviously been classified. Of these 195, we find 168 individual stars of F, G,K or M type, 6 individual stars of unknown type, 6 double stars, 6 AGN orgalaxies and 7 unclassifiable objects; the spectra of the 2 remaining objectswere saturated.Comment: 25 pages, 7 figure

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