Evolution Diagnostics in Interacting Binaries

Through the analysis and interpretation of observational material, particularly on the part of Otto Struve and his collaborators, the structure of an interacting binary is depicted (cf. Sahade and Wood 1978) as formed by a) the two stellar components; b) a gaseous stream from the less massive and mo...

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Autor principal: Sahade, Jorge
Formato: Objeto de conferencia
Lenguaje:Español
Publicado: 1987
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Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/145054
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id I19-R120-10915-145054
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Español
topic Astronomía
binary
mass loss
evolution
spellingShingle Astronomía
binary
mass loss
evolution
Sahade, Jorge
Evolution Diagnostics in Interacting Binaries
topic_facet Astronomía
binary
mass loss
evolution
description Through the analysis and interpretation of observational material, particularly on the part of Otto Struve and his collaborators, the structure of an interacting binary is depicted (cf. Sahade and Wood 1978) as formed by a) the two stellar components; b) a gaseous stream from the less massive and more evolved component of the system towards the companion; c) a circumstellar gaseous envelope –designated as “ring” or “disk” depending on the density of the material; d) a circumbinary gaseous envelope that surrounds the whole system and is normally in expansion, as suggested by the conventional, ground–based observations. The evolution of interacting binaries involves the effect of matter outflow and transfer in at least a stage of rapid mass loss and a stage of slow mass loss. As a result, the evolution of the components appreciably departs from the evolution of single stars and produces very bizarre objects which find no counterparts among non-binaries. Both the observational and the computational results suggest that the amount of mass involved in the process of mass outflow must be a large percentage of the total mass of the evolving component. It seems, therefore, reasonable to expect to find evidence, in evolved systems, for processed material from the interior of the mass-losing component.
format Objeto de conferencia
Objeto de conferencia
author Sahade, Jorge
author_facet Sahade, Jorge
author_sort Sahade, Jorge
title Evolution Diagnostics in Interacting Binaries
title_short Evolution Diagnostics in Interacting Binaries
title_full Evolution Diagnostics in Interacting Binaries
title_fullStr Evolution Diagnostics in Interacting Binaries
title_full_unstemmed Evolution Diagnostics in Interacting Binaries
title_sort evolution diagnostics in interacting binaries
publishDate 1987
url http://sedici.unlp.edu.ar/handle/10915/145054
work_keys_str_mv AT sahadejorge evolutiondiagnosticsininteractingbinaries
bdutipo_str Repositorios
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