The ionization fraction of C IV in OB stars

Details The ionization fraction of C IV in OB stars The ionization fraction of C IV in OB stars

Sep 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.263..327b&link_type=abstract

In ESA Proceedings of an International Symposium on New Insights in Astrophysics. Eight Years of UV Astronomy with IUE p 327-33

Astronomy and Astrophysics

Astrophysics

B Stars, Carbon, Ionization, O Stars, Stellar Winds, Infrared Radiation, Iue, Stellar Models, Stellar Radiation, Stellar Spectra

Scientific paper

The combination of the UV P Cygni line profile of C IV and the IR excess allows the determination of the mass loss rate and the mean ionization fraction of C IV. The values are very dependent on the velocity parameter β. Assuming β ≈ 4, the mass loss rate and ionization fraction are fitted against stellar parameters. If the theory of radiatively driven winds is correct, large differences must exist between the velocity laws of different stars.

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