Pulsations as a mass-loss trigger in evolved hot stars

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...

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Published inProceedings of the International Astronomical Union Vol. 9; no. S301; pp. 217 - 220
Main Authors Kraus, Michaela, Nickeler, Dieter H., Haucke, Maximiliano, Cidale, Lydia, Venero, Roberto, Fernandes, Marcelo Borges, Tomić, Sanja, Curé, Michel
Format Journal Article
LanguageEnglish
Published Cambridge, UK Cambridge University Press 01.08.2013
Subjects
Astronomy
Astrophysics
Contributed Papers
Star & galaxy formation
Stars & galaxies
stars: Be
stars: early-type
stars: oscillations
stars: emission-line
stars: mass loss
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Summary: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 present recent results for two objects in different phases: a B[e] star at the end of the main sequence and a B-type supergiant.
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ISSN:1743-9213
1743-9221
DOI:10.1017/S174392131301435X