X-ray observations of Wolf-Rayet stars

Details X-ray observations of Wolf-Rayet stars X-ray observations of Wolf-Rayet stars

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...288..756s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 288, Jan. 15, 1985, p. 756-763.

Astronomy and Astrophysics

Astronomy

17

Late Stars, O Stars, Wolf-Rayet Stars, X Ray Astronomy, X Ray Stars, Astronomical Catalogs, Maxima, Stellar Coronas, Stellar Models, Stellar Winds

Scientific paper

X-ray observations have been made of a very luminous O8f star, four late WN stars, and eight O VI Wolf-Rayet stars. The X-ray pulse height distributions of the O8f star is analyzed to obtain information on source temperature, emission measure, and location relative to the stellar wind. Only upper limits are obtained for the X-rays from the Wolf-Rayet stars, but for the late WN stars the upper limits are well below the maximum Lx/Lbol detected in earlier surveys. For the O VI stars, the limits, used in conjunction with models for the production of the optical O VI lines, supply information about the excitation conditions in the winds.

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