NLTE wind models of hot subdwarf stars
| Authors | |
|---|---|
| Year of publication | 2010 |
| Type | Article in Periodical |
| Magazine / Source | Astrophysics and Space Science |
| MU Faculty or unit | |
| Citation | |
| Web | http://www.springerlink.com/content/66056475v3427318/ |
| Field | Astronomy and astrophysics |
| Keywords | Stars: winds outflows - Stars: mass-loss - Stars: early-type - Stars: horizontal-branch - Planetary nebulae: general |
| Description | We calculate NLTE models of stellar winds of hot compact stars (central stars of planetary nebulae and subdwarf stars). The studied range of subdwarf parameters is selected to cover a large part of these stars. The models predict the wind hydrodynamical structure and provide mass-loss rates for different abundances. Our models show that CNO elements are important drivers of subdwarf winds, especially for low-luminosity stars. We study the effect of X-rays and instabilities on these winds. Due to the line-driven wind instability, a significant part of the wind could be very hot. |
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