Instability Caused by a Multicomponent Nature of Radiatively-driven Stellar Winds
| Authors | |
|---|---|
| Year of publication | 2003 |
| Type | Article in Proceedings |
| Conference | Asteroseismology Across the HR Diagram |
| MU Faculty or unit | |
| Citation | |
| Field | Astronomy and astrophysics |
| Keywords | stars: mass-loss; stars:early-type; hydrodynamics; instabilities; waves |
| Description | Recent calculations of multicomponent radiatively driven stellar winds of cool B stars showed that friction between individual components significantly lowers the terminal wind velocity. In addition, there is a large heating at the base of these winds caused by frictional and Gayley-Owocki heating. Such winds may be highly unstable resulting either in radiative-acoustic waves propagating both downstream and upstream or in unstable regions. Consequently, instabilities in the stellar wind influence the photospheric structure of these stars. |
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