Equatorial mass loss from Be stars

Be stars are thought to be fast rotating stars surrounded by an equatorial disc. The formation, structure and evolution of the disc are still not well understood. In the frame of single star models, it is expected that the surface of an initially fast rotating star can reach its keplerian velocity (...

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Detalles Bibliográficos
Autores principales: Georgy, Cyril, Ekström, Sylvia, Granada, Anahí, Meynet, Georges
Formato: Articulo Comunicacion
Lenguaje:Inglés
Publicado: 2010
Materias:
Ciencias Astronómicas
Be
Stars: emission-line
Stars: evolution
Stars: mass loss
Stars: rotation
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84063
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84063
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Be
Stars: emission-line
Stars: evolution
Stars: mass loss
Stars: rotation
spellingShingle Ciencias Astronómicas
Be
Stars: emission-line
Stars: evolution
Stars: mass loss
Stars: rotation
Georgy, Cyril
Ekström, Sylvia
Granada, Anahí
Meynet, Georges
Equatorial mass loss from Be stars
topic_facet Ciencias Astronómicas
Be
Stars: emission-line
Stars: evolution
Stars: mass loss
Stars: rotation
description Be stars are thought to be fast rotating stars surrounded by an equatorial disc. The formation, structure and evolution of the disc are still not well understood. In the frame of single star models, it is expected that the surface of an initially fast rotating star can reach its keplerian velocity (critical velocity). The Geneva stellar evolution code has been recently improved, in order to obtain some estimates of the total mass loss and of the mechanical mass loss rates in the equatorial disc during the whole critical rotation phase. We present here the first results of the computation of a grid of fast rotating B stars evolving towards the Be phase, and discuss the first estimates we obtained.
format Articulo
Comunicacion
author Georgy, Cyril
Ekström, Sylvia
Granada, Anahí
Meynet, Georges
author_facet Georgy, Cyril
Ekström, Sylvia
Granada, Anahí
Meynet, Georges
author_sort Georgy, Cyril
title Equatorial mass loss from Be stars
title_short Equatorial mass loss from Be stars
title_full Equatorial mass loss from Be stars
title_fullStr Equatorial mass loss from Be stars
title_full_unstemmed Equatorial mass loss from Be stars
title_sort equatorial mass loss from be stars
publishDate 2010
url http://sedici.unlp.edu.ar/handle/10915/84063
work_keys_str_mv AT georgycyril equatorialmasslossfrombestars
AT ekstromsylvia equatorialmasslossfrombestars
AT granadaanahi equatorialmasslossfrombestars
AT meynetgeorges equatorialmasslossfrombestars
bdutipo_str Repositorios
_version_ 1764820488341684224

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