The extremely X-ray bright Wolf-Rayet star HD193793

Details The extremely X-ray bright Wolf-Rayet star HD193793 The extremely X-ray bright Wolf-Rayet star HD193793

Feb 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ssrv...40...63p&link_type=abstract

(ESA, ESLAB Symposium on X-Ray Astronomy in the EXOSAT Era, 18th, The Hague, Netherlands, Nov. 5-9, 1984) Space Science Reviews

Astronomy and Astrophysics

Astronomy

7

Early Stars, Stellar Luminosity, Stellar Spectrophotometry, Wolf-Rayet Stars, X Ray Spectra, Binary Stars, Bolometers, Exosat Satellite, Spaceborne Astronomy

Scientific paper

The Einstein Observatory showed that Wolf-Rayet stars have a much larger range in the ratio of X-ray to bolometric luminosity than normal early-type stars. EXOSAT measurements of HD 193793 (WC7+abs) show it to be extremely X-ray bright. This result is probably not connected with the infra-red and radio outburst that the star underwent in 1977. Other Einstein X-ray sources which are probably identified with Wolf-Rayet stars are newly reported.

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