Influence of X-ray radiation on the hot star wind ionization state and on the radiative force

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Authors

KRTIČKA Jiří KUBÁT Jiří

Year of publication 2016
Type Article in Periodical
Magazine / Source Advances in Space Research
MU Faculty or unit

Faculty of Science

Citation
Web http://adsabs.harvard.edu/abs/2016AdSpR..58..710K
Doi http://dx.doi.org/10.1016/j.asr.2016.01.002
Field Astronomy and astrophysics
Keywords Stars: winds Outflows; Stars: mass-loss; Stars: early-type; Hydrodynamics; X-rays: stars
Description Hot stars emit large amounts of X-rays, which are assumed to originate in the supersonic stellar wind. Part of the emitted X-rays is subsequently absorbed in the wind and influences its ionization state. Because hot star winds are driven radiatively, the modified ionization equilibrium affects the radiative force. We review the recent progress in modeling the influence of X-rays on the radiative equilibrium and on the radiative force. We focus particularly on single stars with X-rays produced in wind shocks and on binaries with massive components, which belong to the most luminous objects in X-rays.
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