Model of expanding atmosphere for HD 50138

The Be star HD 50138 displays an important infrared excess. The aim of the present investigation is to study the effect of the physical processes - i.e., bound-free transitions, free-free transitions, and electron scattering - on the radiation field originated in the central star. We have proposed,...

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Detalles Bibliográficos
Autores principales: Vazquez, A., Ringuelet, Adela Emilia
Formato: Articulo Comunicacion
Lenguaje:Español
Publicado: 1990
Materias:
Astronomía
Galaxia
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/143240
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-143240
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Astronomía
Galaxia
spellingShingle Astronomía
Galaxia
Vazquez, A.
Ringuelet, Adela Emilia
Model of expanding atmosphere for HD 50138
topic_facet Astronomía
Galaxia
description The Be star HD 50138 displays an important infrared excess. The aim of the present investigation is to study the effect of the physical processes - i.e., bound-free transitions, free-free transitions, and electron scattering - on the radiation field originated in the central star. We have proposed, on observational basis, the existence of a chromosphere and a stellar wind. Under these constraints, we have solved the transfer equation by an observer's frame calculation of it in spherical geometry and by applying the Feautrier method, in order to compute the emergent flux. We have computed the continuum radiation for different velocity-laws, which turned out to be in very good agreeent with the IRAS observations in 12, 25, 60, and 100 μ.
format Articulo
Comunicacion
author Vazquez, A.
Ringuelet, Adela Emilia
author_facet Vazquez, A.
Ringuelet, Adela Emilia
author_sort Vazquez, A.
title Model of expanding atmosphere for HD 50138
title_short Model of expanding atmosphere for HD 50138
title_full Model of expanding atmosphere for HD 50138
title_fullStr Model of expanding atmosphere for HD 50138
title_full_unstemmed Model of expanding atmosphere for HD 50138
title_sort model of expanding atmosphere for hd 50138
publishDate 1990
url http://sedici.unlp.edu.ar/handle/10915/143240
work_keys_str_mv AT vazqueza modelofexpandingatmosphereforhd50138
AT ringueletadelaemilia modelofexpandingatmosphereforhd50138
bdutipo_str Repositorios
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