Predictions of the effect of clumping on the wind properties of O-type stars

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F11%3A00049668" target="_blank" >RIV/00216224:14310/11:00049668 - isvavai.cz</a>
Alternative codes found
RIV/67985815:_____/11:00368890
Result on the web
<a href="http://www.aanda.org/index.php?option=com_article&access=doi&doi=10.1051/0004-6361/201014290&Itemid=129" target="_blank" >http://www.aanda.org/index.php?option=com_article&access=doi&doi=10.1051/0004-6361/201014290&Itemid=129</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/201014290" target="_blank" >10.1051/0004-6361/201014290</a>

Result language
angličtina
Original language name
Predictions of the effect of clumping on the wind properties of O-type stars
Original language description
Aims. Both empirical evidence and theoretical ndings indicate that the stellar winds of massive early-type stars are inhomogeneous, i.e., porous and clumpy. For relatively dense winds, empirically derived mass-loss rates might be reconciled with predictions if these empirical rates are corrected for clumping. The predictions, however, do not account for structure in the wind. To allow for a consistent comparison, we investigate and quantify the e ect of clumpiness and porosity of the out ow on the predicted wind energy and the maximal e ect on the mass-loss rate of O-type stars. Methods. Combining non-LTE model atmospheres and a Monte Carlo method to compute the transfer of momentum from the photons to the gas, the e ect of clumping and porosity on theenergy transferred from the radiation eld to the wind is computed in out ows in which the clumping and porosity strati cation is parameterized by heuristic prescriptions. Results.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BN - Astronomy and celestial mechanics, astrophysics
OECD FORD branch
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Project
<a href="/en/project/GA205%2F08%2F0003" target="_blank" >GA205/08/0003: Mass-loss rate predictions for hot stars</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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