Stellar winds driven by multi-line scattering

Details Stellar winds driven by multi-line scattering Stellar winds driven by multi-line scattering

Nov 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983nascp.2280.281f&link_type=abstract

In JPL Solar Wind Five p 281-287 (SEE N84-13067 03-92)

Physics

Angular Distribution, Data Acquisition, Line Spectra, Momentum, Stellar Winds, Wolf-Rayet Stars, Ionization, Monte Carlo Method, Photons, Radiative Transfer, Statistical Analysis, Terminal Velocity

Scientific paper

This paper presents a model of a radiation-driven stellar wind with overlapping spectral lines. It is based on the Castor, Abbott, and Klein (CAK) theory. The presence of overlapping lines allows a photon to be scattered many times in different lines. The properties of the wind at any point depend on the wavelength-averaged intensity, which in turn depends on the structure of the wind. A self-consistent wind model is found. The mass loss rate does not saturate as line overlap becomes more pronounced, but continues to increase. The terminal velocity is much larger than in the CAK model, while the velocity law is shallower. This model might help explain the massive winds from Wolf-Rayet stars.

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