The surface temperature of C/O-rich Wolf-Rayet stars

Details The surface temperature of C/O-rich Wolf-Rayet stars The surface temperature of C/O-rich Wolf-Rayet stars

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...192..177l&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 192, no. 1-2, March 1988, p. 177-181.

Astronomy and Astrophysics

Astrophysics

27

Active Galactic Nuclei, Carbon Stars, Stellar Mass, Stellar Temperature, Surface Temperature, Wolf-Rayet Stars, Emission Spectra, High Temperature, Line Spectra, Stellar Luminosity, Stellar Mass Ejection

Scientific paper

Stellar models for Wolf-Rayet stars with high concentration of carbon and oxygen in the surface layers (WC stars) have been constructed. The authors have for the first time taken into account both, effects of partial recombination of carbon and oxygen on the equation of state as well as detailed opacities for C- and O-rich material for this type of star. Comparing to previous models where both processes have been neglected, the authors have found that their effect on the surface temperature of the stars is striking: it decreases by as much as 30000 - 40000K. The consequences for the interpretation of observations of Wolf-Rayet stars and active galactic nuclei are discussed.

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