A hydrodynamic scheme for two-component winds from hot stars

Details A hydrodynamic scheme for two-component winds from hot stars A hydrodynamic scheme for two-component winds from hot stars

2007-09-28

arxiv.org/abs/0709.4562v1

Astronomy and Astrophysics

Astrophysics

accepted to Astronomy and Astrophysics

Scientific paper

10.1051/0004-6361:20066376

We have developed a time-dependent two-component hydrodynamics code to simulate radiatively-driven stellar winds from hot stars. We use a time-explicit van Leer scheme to solve the hydrodynamic equations of a two-component stellar wind. Dynamical friction due to Coulomb collisions between the passive bulk plasma and the line-scattering ions is treated by a time-implicit, semi-analytic method using a polynomial fit to the Chandrasekhar function. This gives stable results despite the stiffness of the problem. This method was applied to model stars with winds that are both poorly and well-coupled. While for the former case we reproduce the mCAK solution, for the latter case our solution leads to wind decoupling.

Affiliated with

Also associated with

No associations

Rating

A hydrodynamic scheme for two-component winds from hot stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A hydrodynamic scheme for two-component winds from hot stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A hydrodynamic scheme for two-component winds from hot stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-714898