Project information
Mass-loss rate predictions for hot stars
- Project Identification
- GA205/08/0003
- Project Period
- 1/2008 - 12/2012
- Investor / Pogramme / Project type
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Czech Science Foundation
- Standard Projects
- MU Faculty or unit
- Faculty of Science
- Keywords
- stellar wind, mass-loss rate, hydrodynamics
- Cooperating Organization
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Astronomical Institute of the ASCR, v. v. i.
- Responsible person doc. RNDr. Jiří Kubát, CSc.
Massive hot stars constitute an important part of our Galaxy and many other galaxies. Consequently, a detailed knowledge of their evolution and of their influence on the circumstellar environment is necessary for out understanding of the structure and evolution of individual galaxies. One of the most important problems of massive star evolution is our poor knowledge of mass-loss rates via hot star wind. The aim of the project is to obtain reliable predictions of hot star mass-loss rates, that can be used for example for the evolutionary calculations. We plan to study the influence of individual approximations that can preclude correct mass-loss rate predictions. On the basis of comparison with observed wind parameters we will obtain wind models that are able to reliably predict wind mass-loss rates. These models will be used to obtain mass-loss rate formula for hot stars that can be used for the evolutionary calculations of massive stars. The project will contribute to better understanding of hot star wind and consequently also of massive star evolution.
Publications
Total number of publications: 26
2011
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Data Recognition and Virtual JD
Magnetic Stars. Proceedings of the International Conference, held in the Special Astrophysical Observatory of the Russian AS, year: 2011
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Improved velocity law parameterization for hot star winds
Astronomy and Astrophysics, year: 2011, volume: 534, edition: podzim, DOI
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Magnetic Chemically Peculiar stars With Unsteady Periods
Magnetic Stars. Proceedings of the International Conference, held in the Special Astrophysical Observatory of the Russian AS, year: 2011
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Mass and angular momentum loss of fast rotating stars via decretion disks
Active OB stars: structure, evolution, mass loss, and critical limits, year: 2011
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Mass and angular momentum loss via decretion disks
Astronomy and Astrophysics, year: 2011, volume: 527, edition: 03, DOI
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mCPod : Three Years Later
Magnetic Stars. Proceedings of the International Conference, held in the Special Astrophysical Observatory of the Russian AS, year: 2011
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Predictions of the effect of clumping on the wind properties of O-type stars
Astronomy and Astrophysics, year: 2011, volume: 526, edition: zima, DOI
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Rotationally modulated variations and the mean longitudinal magnetic field of the Herbig Ae star HD 101412
Astronomy and Astrophysics, year: 2011, volume: 525, edition: L4, DOI
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The Exceptional Herbig Ae star HD 101412
Magnetic Stars, year: 2011
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X-ray emission from hydrodynamical wind simulations in non-LTE models
Active OB stars: structure, evolution, mass loss, and critical limits, year: 2011