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NLTE wind models of hot subdwarf stars
- 1.0354889 - ASÚ 2011 RIV NL eng J - Journal Article
Krtička, J. - Kubát, Jiří
NLTE wind models of hot subdwarf stars.
Astrophysics and Space Science. Roč. 329, 1-2 (2010), s. 145-150. ISSN 0004-640X. E-ISSN 1572-946X
R&D Projects: GA ČR GA205/07/0031
Institutional research plan: CEZ:AV0Z10030501
Keywords : stars * winds * outflows
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics
Impact factor: 1.437, year: 2010
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.
Permanent Link: http://hdl.handle.net/11104/0193794
Number of the records: 1