1-D models of induced density enhancements in hot-star winds

Statistics – Computation

Scientific paper

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Computational Astrophysics, Hot Stars, Stellar Models, Stellar Physics, Stellar Winds, Density Distribution, Gray Scale, Perturbation, Spectral Signatures, Ultraviolet Spectra

Scientific paper

We present a 1-D dynamical model of large-scale flow structures induced in a hot-star wind by an initial density perturbation in the inner wind. The resulting wind response is very complex, but includes strong density enhancements that propagate slowly outward through the wind. These density structures exhibit a very slow outward acceleration reminiscent of the discrete absorption components frequently observed in unsaturated UV lines formed in hot-star winds.

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