NLTE wind models of hot subdwarf stars

0354889 - ASÚ 2011 RIV NL eng J - Článek v odborném periodiku
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
Grant CEP: GA ČR GA205/07/0031
Výzkumný záměr: CEZ:AV0Z10030501
Klíčová slova: stars * winds * outflows
Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika
Impakt faktor: 1.437, rok: 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.
Trvalý link: http://hdl.handle.net/11104/0193794