SIMBAD references

2007AJ....133.2495D - Astron. J., 133, 2495-2501 (2007/June-0)

Spectral classification of optical counterparts to ROSAT all-sky survey X-ray sources.


Abstract (from CDS):

Previous work statistically identified 5492 optical counterparts, with ≳90% confidence, from among the ~18,000 X-ray sources appearing in the ROSAT All-Sky Survey Bright Source Catalog. Using low-resolution spectra in the wavelength range 3700-7900 Å, we present spectroscopic classifications for 195 of these counterparts which have not previously 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 AGNs or galaxies, and 7 unclassifiable objects; the spectra of the 2 remaining objects were saturated.

Abstract Copyright:

Journal keyword(s): Stars: General - Surveys - X-Rays: Galaxies - X-Rays: General - X-Rays: Stars

VizieR on-line data: <Available at CDS (J/AJ/133/2495): table1.dat>

CDS comments: Table 1, col(1): Numbering NNN is not used in SIMBAD.

Simbad objects: 196

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