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RIDGWAY , S. T.

Last name: RIDGWAY

First name: S. T.

April 2016 (v1)

Journal article

Metadata-only

The close circumstellar environment of Betelgeuse.

Montargès, M. Kervella, P. Perrin, G.

Context. The mass-loss mechanism of cool massive evolved stars is poorly understood. The proximity of Betelgeuse makes it an appealing target to study its atmosphere, map the shape of its envelope, and follow the structure of its wind from the photosphere out to the interstellar medium. Aims. A link is suspected between the powerful convective...

Uploaded on: February 28, 2023
September 2012 (v1)

Journal article

Metadata-only

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

Stee, Ph. Delaa, O. Monnier, J. D.

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 disk responsible for the observed near IR-excess, emission lines, and peculiar X-ray emission is still being debated. Aims: We constrain the geometry...

Uploaded on: December 4, 2022