Non-spherical evolution of the line-driven wind instability

Details Non-spherical evolution of the line-driven wind instability Non-spherical evolution of the line-driven wind instability

2003-05-30

arxiv.org/abs/astro-ph/0305598v1

Mon.Not.Roy.Astron.Soc. 344 (2003) 725

Astronomy and Astrophysics

Astrophysics

Accepted by MNRAS, 17 pages, 15 postscript figures, 4 large figures appear as jpeg files

Scientific paper

10.1046/j.1365-8711.2003.06864.x

In this paper, we study the structure and stability of line driven winds using numerical hydrodynamic simulations. We calculate the radiation force from an explicit non-local solution of the radiation transfer equation, rather than a Sobolev approximation, without restricting the flow to one-dimensional symmetry. We find that the solutions which result have complex and highly variable structures, including dense condensations which we compare to observed variable absorption features in the spectra of early type stars.

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