New theories of convection in the context of a recent analysis of the DBV white dwarf GD 358

Autores
Althaus, Leandro Gabriel; Benvenuto, Omar Gustavo
Año de publicación
1997
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present updated evolutionary calculations for carbon-oxygen DB white dwarfs using the self-consistent model for turbulent convection recently developed by Canuto, Goldman & Mazzitelli (CGM). To this end, we employ a detailed stellar evolutionary code in which we include a new equation of state for helium plasmas computed by Saumon, Chabrier & Van Horn as well as new OPAL radiative opacities. The present study is aimed at assessing the compatibility of the CGM model with the recent effective temperature redetermination of the pulsating DB white dwarf star GD 358. This star defines the blue edge of the DB white dwarf instability strip. Using thermal time-scale arguments, we find that the DB blue edges given by the CGM fit to the effective temperature of GD 358 are much better than those given by the previous Canuto & Mazzitelli model.
Facultad de Ciencias Astronómicas y Geofísicas
Materia
Física
Astronomía
convection
stars: individual: GD 358
white dwarfs
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/145056
Acceder
id SEDICI_aaff1979239845789a79f72d8445e6c1
oai_identifier_str oai:sedici.unlp.edu.ar:10915/145056
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling New theories of convection in the context of a recent analysis of the DBV white dwarf GD 358Althaus, Leandro GabrielBenvenuto, Omar GustavoFísicaAstronomíaconvectionstars: individual: GD 358white dwarfsWe present updated evolutionary calculations for carbon-oxygen DB white dwarfs using the self-consistent model for turbulent convection recently developed by Canuto, Goldman & Mazzitelli (CGM). To this end, we employ a detailed stellar evolutionary code in which we include a new equation of state for helium plasmas computed by Saumon, Chabrier & Van Horn as well as new OPAL radiative opacities. The present study is aimed at assessing the compatibility of the CGM model with the recent effective temperature redetermination of the pulsating DB white dwarf star GD 358. This star defines the blue edge of the DB white dwarf instability strip. Using thermal time-scale arguments, we find that the DB blue edges given by the CGM fit to the effective temperature of GD 358 are much better than those given by the previous Canuto & Mazzitelli model.Facultad de Ciencias Astronómicas y Geofísicas1997-06-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfL35-L38http://sedici.unlp.edu.ar/handle/10915/145056enginfo:eu-repo/semantics/altIdentifier/issn/0035-8711info:eu-repo/semantics/altIdentifier/issn/1365-2966info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/288.2.l35info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:32:22Zoai:sedici.unlp.edu.ar:10915/145056Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:32:23.137SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv New theories of convection in the context of a recent analysis of the DBV white dwarf GD 358
title New theories of convection in the context of a recent analysis of the DBV white dwarf GD 358
spellingShingle New theories of convection in the context of a recent analysis of the DBV white dwarf GD 358
Althaus, Leandro Gabriel
Física
Astronomía
convection
stars: individual: GD 358
white dwarfs
title_short New theories of convection in the context of a recent analysis of the DBV white dwarf GD 358
title_full New theories of convection in the context of a recent analysis of the DBV white dwarf GD 358
title_fullStr New theories of convection in the context of a recent analysis of the DBV white dwarf GD 358
title_full_unstemmed New theories of convection in the context of a recent analysis of the DBV white dwarf GD 358
title_sort New theories of convection in the context of a recent analysis of the DBV white dwarf GD 358
dc.creator.none.fl_str_mv Althaus, Leandro Gabriel
Benvenuto, Omar Gustavo
author Althaus, Leandro Gabriel
author_facet Althaus, Leandro Gabriel
Benvenuto, Omar Gustavo
author_role author
author2 Benvenuto, Omar Gustavo
author2_role author
dc.subject.none.fl_str_mv Física
Astronomía
convection
stars: individual: GD 358
white dwarfs
topic Física
Astronomía
convection
stars: individual: GD 358
white dwarfs
dc.description.none.fl_txt_mv We present updated evolutionary calculations for carbon-oxygen DB white dwarfs using the self-consistent model for turbulent convection recently developed by Canuto, Goldman & Mazzitelli (CGM). To this end, we employ a detailed stellar evolutionary code in which we include a new equation of state for helium plasmas computed by Saumon, Chabrier & Van Horn as well as new OPAL radiative opacities. The present study is aimed at assessing the compatibility of the CGM model with the recent effective temperature redetermination of the pulsating DB white dwarf star GD 358. This star defines the blue edge of the DB white dwarf instability strip. Using thermal time-scale arguments, we find that the DB blue edges given by the CGM fit to the effective temperature of GD 358 are much better than those given by the previous Canuto & Mazzitelli model.
Facultad de Ciencias Astronómicas y Geofísicas
description We present updated evolutionary calculations for carbon-oxygen DB white dwarfs using the self-consistent model for turbulent convection recently developed by Canuto, Goldman & Mazzitelli (CGM). To this end, we employ a detailed stellar evolutionary code in which we include a new equation of state for helium plasmas computed by Saumon, Chabrier & Van Horn as well as new OPAL radiative opacities. The present study is aimed at assessing the compatibility of the CGM model with the recent effective temperature redetermination of the pulsating DB white dwarf star GD 358. This star defines the blue edge of the DB white dwarf instability strip. Using thermal time-scale arguments, we find that the DB blue edges given by the CGM fit to the effective temperature of GD 358 are much better than those given by the previous Canuto & Mazzitelli model.
publishDate 1997
dc.date.none.fl_str_mv 1997-06-21
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/145056
url http://sedici.unlp.edu.ar/handle/10915/145056
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0035-8711
info:eu-repo/semantics/altIdentifier/issn/1365-2966
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/288.2.l35
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
L35-L38
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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