Multicomponent stellar winds of He chemically peculiar stars

Details Multicomponent stellar winds of He chemically peculiar stars Multicomponent stellar winds of He chemically peculiar stars

2003-10-27

arxiv.org/abs/astro-ph/0310751v1

Astronomy and Astrophysics

Astrophysics

To appear in proceedings of international meeting and workshop "Magnetic stars", 2003, Nizhny Arkhyz, Russia

Scientific paper

We calculate multicomponent stellar wind models with inclusion of a helium component applicable to He-rich and He-poor stars. We show that helium does not decouple from the stellar wind of He-rich stars due to its coupling to hydrogen and its ionized state. For He-poor stars helium may decouple from the stellar wind, however this effect is not able to explain the chemical peculiarity of these stars. We conclude that the explanation of chemical peculiarity of these stars based purely on helium or hydrogen decoupling from the stellar wind is unlikely.

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