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Comoving frame models of hot star winds I. Test of the Sobolev approximation in the case of pure line transitions

SYSNO ASEP	0354884
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Comoving frame models of hot star winds I. Test of the Sobolev approximation in the case of pure line transitions
Author(s)	Krtička, J. (CZ) Kubát, Jiří (ASU-R)_{RID, ORCID}
Source Title	Astronomy & Astrophysics. - : EDP Sciences - ISSN 0004-6361 Roč. 519, September (2010), A50/1-A50/9
Number of pages	9 s.
Language	eng - English
Country	FR - France
Keywords	stars ; winds ; outflows
Subject RIV	BN - Astronomy, Celestial Mechanics, Astrophysics
R&D Projects	GA205/07/0031 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z10030501 - ASU-R (2005-2011)
UT WOS	000283297300050
DOI	10.1051/0004-6361/201014111
Annotation	We provide hot star wind models with radiative force calculated using the solution of comoving frame (CMF) radiative transfer equation. The wind models are calculated for the first stars, O stars, and the central stars of planetary nebulae. We show that without line overlaps and with solely thermal line broadening the pure Sobolev approximation provides a reliable estimate of the radiative force even close to the wind sonic point. Consequently, models with the Sobolev line force provide good approximations to solutions obtained with non-Sobolev transfer.
Workplace	Astronomical Institute
Contact	Radka Svašková, bibl@asu.cas.cz, Tel.: 323 620 326
Year of Publishing	2011

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