First spectro-interferometric survey of Be stars I. Observations and constraints on the disk geometry and kinematics

@article{Meilland2012FirstSS,
  title={First spectro-interferometric survey of Be stars I. Observations and constraints on the disk geometry and kinematics},
  author={A. Meilland and F. Millour and S. Kanaan and P. Stee and R. Petrov and K. Hofmann and A. Natta and K. Perraut},
  journal={Astronomy and Astrophysics},
  year={2012},
  volume={538},
  pages={110}
}
Context. Classical Be stars are hot non-supergiant stars surrounded by a gaseous circumstellar disk that is responsible for the observed infrared-excess and emission lines. The phenomena involved in the disk formation still remain highly debated. Aims. To progress in the understanding of the physical process or processes responsible for the mass ejections and test the hypothesis that they depend on the stellar parameters, we initiated a survey on the circumstellar environment of the brightest… Expand
Spectro-interferometric observations of a sample of Be stars. Setting limits to the geometry and kinematics of stable Be disks
Be stars are rapid rotators surrounded by a gaseous disk envelope whose origin is still under debate. This envelope is responsible for observed emission lines and large infrared excess. To progressExpand
The relationship between γ Cassiopeiae’s X-ray emission and its circumstellar environment - II. Geometry and kinematics of the disk from MIRC and VEGA instruments on the CHARA Array
Context.γ Cas is thought to be the prototype of classical Be stars and is the most studied object among this group. However, as for all Be stars, the origin and the physics of its circumstellar diskExpand
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Optical long baseline interferometry was recently established as a technique capable of resolving stars and their circumstellar environments at the milliarcsecond (mas) resolution level. ThisExpand
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Context. HD 110432 was classified as a "γ Cas X-ray analog" since it has similar peculiar X-ray and optical characteristics, i.e. a hard-thermal X-ray variable emission and an optical spectrumExpand
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Context. Classical Be stars are hot non-supergiant stars surrounded by a gaseous circumstellar envelope that is responsible for the observed IR-excess and emission lines. The origin of this envelope,Expand
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Classical Be stars are hot non-supergiant stars surrounded by a gaseous circumstellar disk that is responsible for the observed IR-excess and emission lines. The influence of binarity on theseExpand
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