KRTIČKA, Jiří, Lianne MUIJRES, Joachim PULS, Jiří KUBÁT and Alex DE KOTER. The influence of inhomogeneities on hot star wind model predictions. In The Art of Modelling Stars in the 21st Century. Cambridge, United Kingdom: Cambridge University Press, 2008, p. 283-286. ISBN 978-0-521-88983-4.
Other formats:   BibTeX LaTeX RIS
Basic information
Original name The influence of inhomogeneities on hot star wind model predictions
Name in Czech Vliv nehomogenit na předpovědi rychlosti ztráty hmoty
Authors KRTIČKA, Jiří (203 Czech Republic, guarantor), Lianne MUIJRES (528 Netherlands), Joachim PULS (276 Germany), Jiří KUBÁT (203 Czech Republic) and Alex DE KOTER (528 Netherlands).
Edition Cambridge, United Kingdom, The Art of Modelling Stars in the 21st Century, p. 283-286, 4 pp. 2008.
Publisher Cambridge University Press
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 10308 Astronomy
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
WWW URL
RIV identification code RIV/00216224:14310/08:00025134
Organization unit Faculty of Science
ISBN 978-0-521-88983-4
UT WoS 000263138600056
Keywords in English stars: winds; outflows stars: mass-loss; stars: early-type; hydrodynamics
Tags hydrodynamics, outflows stars: mass-loss, stars: early-type, stars: winds
Tags International impact
Changed by Changed by: prof. Mgr. Jiří Krtička, Ph.D., učo 8714. Changed: 25/6/2009 19:54.
Abstract
We study the effect of wind inhomogeneities (clumping) on O star wind model predictions. For this purpose we artificially include clumping into our stationary NLTE wind models. As a result of the inclusion of optically thin clumps the radiative line force is increased compared to corresponding unclumped models, with a similar effect on either the mass-loss rate or the terminal velocity. When the clumps are allowed to be optically thick in continuum, on the other hand, the radiative force and consequently the mass-loss rate decreases alternatively.
Abstract (in Czech)
Studujeme vliv nehomogenit (chuchvalců) na předpovědi modelů hvězdných větrů O hvězd. Za tímto účelem zahrnujeme chuchvalce do stacionárních NLTE modelů. V důsledku zahrnutí chuchvalců roste zářivá síla a odpovídajícím způsobem také rychlost ztráty hmoty či konečná rychlost větru. Pokud jsou však chuchvalce opticky tlusté, může docházet k opačnému jevu.
Links
GA205/07/0031, research and development projectName: Hvězdné větry prvních hvězd ve vesmíru
Investor: Czech Science Foundation, Stellar winds of first stars in the Universe
GA205/08/0003, research and development projectName: Předpovědi rychlosti ztráty hmoty horkých hvězd
Investor: Czech Science Foundation, Mass-loss rate predictions for hot stars
PrintDisplayed: 12/6/2024 00:12