Preliminary results on a sample of Be stars observed with the VEGA/CHARA interferometer

Details Preliminary results on a sample of Be stars observed with the VEGA/CHARA interferometer Preliminary results on a sample of Be stars observed with the VEGA/CHARA interferometer

Nov 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009sf2a.conf..269d&link_type=abstract

SF2A-2009: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics, held 29 June - 4 July 2009 in

Astronomy and Astrophysics

Astrophysics

Scientific paper

It is well known that the Be phenomenon, i.e. presence of Balmer lines emission and infrared excess in the spectrum of Be stars, takes its origin in a rotating disk-like circumstellar environment. On the other hand, the origin, kinematics and geometry of those circumstellar environments are still hardly debated. In this contribution, we present the first results from the VEGA/CHARA interferometer observations of the classical Be star _Ψ Per. We have extracted the visibilities and differential phases from these interferometric data, mainly around the Balmer H_α and H_β emission lines, and tried to determine the geometry and kinematics of the concerned emitting regions.

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