3D Monte Carlo Radiative Transfer in Inhomogeneous Massive Star Winds
- 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.
| Author details: | Brankica Kubatova, Wolf-Rainer HamannORCiDGND, Jiri KubatORCiD, Lida OskinovaORCiDGND |
|---|---|
| ISBN: | 978-1-58381-925-8 |
| ISSN: | 1050-3390 |
| Title of parent work (English): | Radiative signatures from the cosmos |
| Subtitle (German): | Application to Resonance Line Formation |
| Publisher: | Astronomical soc pacific |
| Place of publishing: | San Fransisco |
| Publication type: | Other |
| Language: | English |
| Year of first publication: | 2019 |
| Publication year: | 2019 |
| Release date: | 2021/06/22 |
| Volume: | 519 |
| Number of pages: | 4 |
| First page: | 209 |
| Last Page: | 212 |
| Funding institution: | GA CR grant [16-01116S] |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| DDC classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Peer review: | Referiert |
