EAS Publications Series
Volume 18, 2006Radiative Transfer and Applications to Very Large Telescopes
|Page(s)||273 - 290|
|Published online||08 March 2006|
Ph. Stee (ed)
EAS Publications Series, 18 (2006) 273-290
Recent results from the SIMECA code and VLTI observations
Observatoire de la Côte d'Azur, Département GEMINI – CNRS UMR 6203, Avenue Copernic, 06130 Grasse, France
We present recent results on active hot stars using the first VLTI/MIDI and VLTI/AMBER observations, and the SIMECA code developed by Stee (1994). α Arae was the first classical Be star observed with MIDI (June 2003) and AMBER (February 2005). The size of its circumstellar envelope was measured and thanks to the spectrally-resolved interferometric AMBER observations, we were able, for the first time to evidence the Keplerian rotation of the circumstellar disc. MWC 297 is one of the brightest Herbig Be star, and it was then observed during the first commissioning run of AMBER in May 2004. The data obtained were good enough to allow us to infer the accretion disc extension, as well as to put strong constraints on the stellar wind geometry and kinematics.
© EAS, EDP Sciences, 2006
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