Grids of white dwarf evolutionary models with masses from M= 0.1 to 1.2 M☉

Autores
Benvenuto, Omar Gustavo; Althaus, Leandro Gabriel
Año de publicación
1999
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present detailed evolutionary calculations for carbon - oxygen - and helium - core white dwarf models with masses ranging from M = 0.1 to M = 1.2 M⊙ and for metallicities Z = 0.001 and Z = 0. The sequences cover a wide range of hydrogen envelopes as well. We have taken finite - temperature effects fully into account by means of a detailed white dwarf evolutionary code, in which updated radiative opacities and equations of state for hydrogen and helium plasmas are considered. The energy transport by convection is treated within the formalism of the full - spectrum turbulence theory, as given by the self - consistent model of Canuto, Goldman and Mazzitelli. Convective mixing, crystallization, hydrogen burning and neutrino energy losses are taken into account as well. The set of models presented here is very detailed and should be valuable, particularly for the interpretation of the observational data on low - mass white dwarfs recently discovered in numerous binary configurations and also for the general problem of determining the theoretical luminosity function for white dwarfs. In this context, we compare our cooling sequences with the observed white dwarf luminosity function recently improved by Leggett, Ruiz & Bergeron and we obtain an age for the Galactic disc of ≈ 8 Gyr. Finally, we applied the results of this paper to derive stellar masses of a sample of low - mass white dwarfs.
Facultad de Ciencias Astronómicas y Geofísicas
Materia
Ciencias Astronómicas
Stars: evolution
Stars: interiors
Luminosity function
Mass function
Pulsars: general
White dwarfs
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/122841

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repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Grids of white dwarf evolutionary models with masses from M= 0.1 to 1.2 M☉Benvenuto, Omar GustavoAlthaus, Leandro GabrielCiencias AstronómicasStars: evolutionStars: interiorsLuminosity functionMass functionPulsars: generalWhite dwarfsWe present detailed evolutionary calculations for carbon - oxygen - and helium - core white dwarf models with masses ranging from M = 0.1 to M = 1.2 M⊙ and for metallicities Z = 0.001 and Z = 0. The sequences cover a wide range of hydrogen envelopes as well. We have taken finite - temperature effects fully into account by means of a detailed white dwarf evolutionary code, in which updated radiative opacities and equations of state for hydrogen and helium plasmas are considered. The energy transport by convection is treated within the formalism of the full - spectrum turbulence theory, as given by the self - consistent model of Canuto, Goldman and Mazzitelli. Convective mixing, crystallization, hydrogen burning and neutrino energy losses are taken into account as well. The set of models presented here is very detailed and should be valuable, particularly for the interpretation of the observational data on low - mass white dwarfs recently discovered in numerous binary configurations and also for the general problem of determining the theoretical luminosity function for white dwarfs. In this context, we compare our cooling sequences with the observed white dwarf luminosity function recently improved by Leggett, Ruiz & Bergeron and we obtain an age for the Galactic disc of ≈ 8 Gyr. Finally, we applied the results of this paper to derive stellar masses of a sample of low - mass white dwarfs.Facultad de Ciencias Astronómicas y Geofísicas1999info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf30-38http://sedici.unlp.edu.ar/handle/10915/122841enginfo:eu-repo/semantics/altIdentifier/issn/0035-8711info:eu-repo/semantics/altIdentifier/issn/1365-2966info:eu-repo/semantics/altIdentifier/arxiv/astro-ph/9811414info:eu-repo/semantics/altIdentifier/doi/10.1046/j.1365-8711.1999.02215.xinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:29:14Zoai:sedici.unlp.edu.ar:10915/122841Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:29:15.023SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Grids of white dwarf evolutionary models with masses from M= 0.1 to 1.2 M☉
title Grids of white dwarf evolutionary models with masses from M= 0.1 to 1.2 M☉
spellingShingle Grids of white dwarf evolutionary models with masses from M= 0.1 to 1.2 M☉
Benvenuto, Omar Gustavo
Ciencias Astronómicas
Stars: evolution
Stars: interiors
Luminosity function
Mass function
Pulsars: general
White dwarfs
title_short Grids of white dwarf evolutionary models with masses from M= 0.1 to 1.2 M☉
title_full Grids of white dwarf evolutionary models with masses from M= 0.1 to 1.2 M☉
title_fullStr Grids of white dwarf evolutionary models with masses from M= 0.1 to 1.2 M☉
title_full_unstemmed Grids of white dwarf evolutionary models with masses from M= 0.1 to 1.2 M☉
title_sort Grids of white dwarf evolutionary models with masses from M= 0.1 to 1.2 M☉
dc.creator.none.fl_str_mv Benvenuto, Omar Gustavo
Althaus, Leandro Gabriel
author Benvenuto, Omar Gustavo
author_facet Benvenuto, Omar Gustavo
Althaus, Leandro Gabriel
author_role author
author2 Althaus, Leandro Gabriel
author2_role author
dc.subject.none.fl_str_mv Ciencias Astronómicas
Stars: evolution
Stars: interiors
Luminosity function
Mass function
Pulsars: general
White dwarfs
topic Ciencias Astronómicas
Stars: evolution
Stars: interiors
Luminosity function
Mass function
Pulsars: general
White dwarfs
dc.description.none.fl_txt_mv We present detailed evolutionary calculations for carbon - oxygen - and helium - core white dwarf models with masses ranging from M = 0.1 to M = 1.2 M⊙ and for metallicities Z = 0.001 and Z = 0. The sequences cover a wide range of hydrogen envelopes as well. We have taken finite - temperature effects fully into account by means of a detailed white dwarf evolutionary code, in which updated radiative opacities and equations of state for hydrogen and helium plasmas are considered. The energy transport by convection is treated within the formalism of the full - spectrum turbulence theory, as given by the self - consistent model of Canuto, Goldman and Mazzitelli. Convective mixing, crystallization, hydrogen burning and neutrino energy losses are taken into account as well. The set of models presented here is very detailed and should be valuable, particularly for the interpretation of the observational data on low - mass white dwarfs recently discovered in numerous binary configurations and also for the general problem of determining the theoretical luminosity function for white dwarfs. In this context, we compare our cooling sequences with the observed white dwarf luminosity function recently improved by Leggett, Ruiz & Bergeron and we obtain an age for the Galactic disc of ≈ 8 Gyr. Finally, we applied the results of this paper to derive stellar masses of a sample of low - mass white dwarfs.
Facultad de Ciencias Astronómicas y Geofísicas
description We present detailed evolutionary calculations for carbon - oxygen - and helium - core white dwarf models with masses ranging from M = 0.1 to M = 1.2 M⊙ and for metallicities Z = 0.001 and Z = 0. The sequences cover a wide range of hydrogen envelopes as well. We have taken finite - temperature effects fully into account by means of a detailed white dwarf evolutionary code, in which updated radiative opacities and equations of state for hydrogen and helium plasmas are considered. The energy transport by convection is treated within the formalism of the full - spectrum turbulence theory, as given by the self - consistent model of Canuto, Goldman and Mazzitelli. Convective mixing, crystallization, hydrogen burning and neutrino energy losses are taken into account as well. The set of models presented here is very detailed and should be valuable, particularly for the interpretation of the observational data on low - mass white dwarfs recently discovered in numerous binary configurations and also for the general problem of determining the theoretical luminosity function for white dwarfs. In this context, we compare our cooling sequences with the observed white dwarf luminosity function recently improved by Leggett, Ruiz & Bergeron and we obtain an age for the Galactic disc of ≈ 8 Gyr. Finally, we applied the results of this paper to derive stellar masses of a sample of low - mass white dwarfs.
publishDate 1999
dc.date.none.fl_str_mv 1999
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/10915/122841
url http://sedici.unlp.edu.ar/handle/10915/122841
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/arxiv/astro-ph/9811414
info:eu-repo/semantics/altIdentifier/doi/10.1046/j.1365-8711.1999.02215.x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
30-38
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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