Pulsations as a mass-loss trigger in evolved hot stars

0440038 - ASÚ 2015 RIV GB eng C - Konferenční příspěvek (zahraniční konf.)
Kraus, Michaela - Nickeler, Dieter Horst - Haucke, M. - Cidale, L.S. - Venero, R.O.J. - Fernardes, M.G. - Tomić, S. - Curé, M.
Pulsations as a mass-loss trigger in evolved hot stars.
Precision Asteroseismology. Cambridge: Cambridge University Press, 2014, s. 217-220. IAU Symposium Proceedings Series, IAU S301. ISBN 978-1-107-04517-0. ISSN 1743-9213.
[Symposium of the International Astronomical Union /301./. Wroclaw (PL), 19.08.2013-23.08.2013]
Grant CEP: GA ČR(CZ) GAP209/11/1198; GA MŠMT 7AMB12AR021
Institucionální podpora: RVO:67985815
Klíčová slova: early-type stars * emission-line * oscillations
Obor OECD: Astronomy (including astrophysics,space science)

During their post-main sequence evolution, massive stars pass through several short- lived phases, in which they experience enhanced mass loss in the form of clumped winds and mass ejection events of unclear origin. The discovery that stars populating the blue luminous part of the Hertzsprung-Russell diagram can pulsate suggests that stellar pulsations might influence or trigger enhanced mass loss and eruptions. We pre sent recent results for two objects in different phases: a B[e] star at the end of the main sequence and a B-type supergiant.
Trvalý link: http://hdl.handle.net/11104/0243192