3D Monte Carlo Radiative Transfer in Inhomogeneous Massive Star Winds - Application to Resonance Line Formation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F19%3A00520220" target="_blank" >RIV/67985815:_____/19:00520220 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
3D Monte Carlo Radiative Transfer in Inhomogeneous Massive Star Winds - Application to Resonance Line Formation
Original language description
Already for decades it has been known that the winds of massive stars are inhomogeneous (i.e. clumped). To properly model observed spectra of massive star winds it is necessary to incorporate the 3-D nature of clumping into radiative transfer calculations. In this paper we present our full 3-D Monte Carlo radiative transfer code for inhomogeneous expanding stellar winds. We use a set of parameters to describe dense as well as the rarefied wind components. At the same time, we account for non-monotonic velocity fields. We show how the 3-D density and velocity wind inhomogeneities strongly affect the resonance line formation. We also show how wind clumping can solve the discrepancy between P v and H alpha mass-loss rate diagnostics.
Czech name
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Czech description
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Project
<a href="/en/project/GA16-01116S" target="_blank" >GA16-01116S: Atmospheres and circumstellar environment of magnetic hot stars</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Radiative Signatures from the Cosmos: A Conference in Honor of Ivan Hubený
ISBN
9781583819265
ISSN
1050-3390
e-ISSN
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Number of pages
4
Pages from-to
209-212
Publisher name
Astronomical Society of the Pacific
Place of publication
San Francisco
Event location
Paris
Event date
Oct 23, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000494866300034

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