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BUIL , Ch.

Last name: BUIL

First name: Ch.

July 13, 2010 (v1)

Journal article

Metadata-only

Time, spatial, and spectral resolution of the Halpha line-formation region of Deneb and Rigel with the VEGA/CHARA interferometer

Chesneau, Olivier Dessart, Luc Mourard, D.

BA-type supergiants are amongst the most optically-bright stars. They are observable in extragalactic environments, hence potential accurate distance indicators. Emission activity in the Halpha line of the BA supergiants Rigel (B8Ia) and Deneb (A2Ia) is indicative of presence of localized time-dependent mass ejections. Here, we employ optical...

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