Evolutionary and pulsational properties of low-mass white dwarf stars with oxygen cores resulting from close binary evolution

Autores
Althaus, Leandro Gabriel; Corsico, Alejandro Hugo; Gautschy, Alfred; Han, Z.; Serenelli, A. M.; Panei, Jorge Alejandro
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The present work is designed to explore the evolutionary and pulsational properties of low-mass white dwarfs with carbon/oxygen cores. In particular, we follow the evolution of a 0.33-M⊙ white dwarf remnant in a self-consistent way with the predictions of nuclear burning, element diffusion and the history of the white dwarf progenitor. Attention is focused on the occurrence of hydrogen shell flashes induced by diffusion processes during cooling phases. The evolutionary stages prior to the white dwarf formation are also fully accounted for by computing the conservative binary evolution of an initially 2.5-M⊙ Population I star with a 1.25-M ⊙ companion, and with period Pi = 3d. Evolution is followed down to the domain of the ZZ Ceti stars on the white dwarf cooling branch. We find that chemical diffusion induces the occurrence of an additional hydrogen thermonuclear flash, which leads to stellar models with thin hydrogen envelopes. As a result, a fast cooling is encountered at advanced stages of evolution. In addition, we explore the adiabatic pulsational properties of the resulting white dwarf models. As compared with their helium-core counterparts, low-mass oxygen-core white dwarfs are characterized by a pulsational spectrum much more featured, an aspect which could eventually be used for distinguishing both types of stars, if low-mass white dwarfs were in fact found to pulsate as ZZ Ceti-type variables. Finally, we perform a non-adiabatic pulsational analysis on the resulting carbon/oxygen low-mass white dwarf models.
Fil: Althaus, Leandro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; Argentina
Fil: Corsico, Alejandro Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; Argentina
Fil: Gautschy, Alfred. Froburgstr. 43; Suiza
Fil: Han, Z.. Chinese Academy of Sciences; República de China
Fil: Serenelli, A. M.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; Argentina
Fil: Panei, Jorge Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; Argentina
Materia
BINARIES: GENERAL
STARS: EVOLUTION
STARS: INTERIORS
STARS: OSCILLATIONS
WHITE DWARFS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/36898
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/36898
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Evolutionary and pulsational properties of low-mass white dwarf stars with oxygen cores resulting from close binary evolutionAlthaus, Leandro GabrielCorsico, Alejandro HugoGautschy, AlfredHan, Z.Serenelli, A. M.Panei, Jorge AlejandroBINARIES: GENERALSTARS: EVOLUTIONSTARS: INTERIORSSTARS: OSCILLATIONSWHITE DWARFShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The present work is designed to explore the evolutionary and pulsational properties of low-mass white dwarfs with carbon/oxygen cores. In particular, we follow the evolution of a 0.33-M⊙ white dwarf remnant in a self-consistent way with the predictions of nuclear burning, element diffusion and the history of the white dwarf progenitor. Attention is focused on the occurrence of hydrogen shell flashes induced by diffusion processes during cooling phases. The evolutionary stages prior to the white dwarf formation are also fully accounted for by computing the conservative binary evolution of an initially 2.5-M⊙ Population I star with a 1.25-M ⊙ companion, and with period Pi = 3d. Evolution is followed down to the domain of the ZZ Ceti stars on the white dwarf cooling branch. We find that chemical diffusion induces the occurrence of an additional hydrogen thermonuclear flash, which leads to stellar models with thin hydrogen envelopes. As a result, a fast cooling is encountered at advanced stages of evolution. In addition, we explore the adiabatic pulsational properties of the resulting white dwarf models. As compared with their helium-core counterparts, low-mass oxygen-core white dwarfs are characterized by a pulsational spectrum much more featured, an aspect which could eventually be used for distinguishing both types of stars, if low-mass white dwarfs were in fact found to pulsate as ZZ Ceti-type variables. Finally, we perform a non-adiabatic pulsational analysis on the resulting carbon/oxygen low-mass white dwarf models.Fil: Althaus, Leandro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; ArgentinaFil: Corsico, Alejandro Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; ArgentinaFil: Gautschy, Alfred. Froburgstr. 43; SuizaFil: Han, Z.. Chinese Academy of Sciences; República de ChinaFil: Serenelli, A. M.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; ArgentinaFil: Panei, Jorge Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; ArgentinaWiley Blackwell Publishing, Inc2004-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/36898Althaus, Leandro Gabriel; Corsico, Alejandro Hugo; Gautschy, Alfred; Han, Z.; Serenelli, A. M.; et al.; Evolutionary and pulsational properties of low-mass white dwarf stars with oxygen cores resulting from close binary evolution; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 347; 1; 1-2004; 125-1360035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/347/1/125/1269815info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2004.07183.xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:24:28Zoai:ri.conicet.gov.ar:11336/36898instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:24:28.507CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Evolutionary and pulsational properties of low-mass white dwarf stars with oxygen cores resulting from close binary evolution
title Evolutionary and pulsational properties of low-mass white dwarf stars with oxygen cores resulting from close binary evolution
spellingShingle Evolutionary and pulsational properties of low-mass white dwarf stars with oxygen cores resulting from close binary evolution
Althaus, Leandro Gabriel
BINARIES: GENERAL
STARS: EVOLUTION
STARS: INTERIORS
STARS: OSCILLATIONS
WHITE DWARFS
title_short Evolutionary and pulsational properties of low-mass white dwarf stars with oxygen cores resulting from close binary evolution
title_full Evolutionary and pulsational properties of low-mass white dwarf stars with oxygen cores resulting from close binary evolution
title_fullStr Evolutionary and pulsational properties of low-mass white dwarf stars with oxygen cores resulting from close binary evolution
title_full_unstemmed Evolutionary and pulsational properties of low-mass white dwarf stars with oxygen cores resulting from close binary evolution
title_sort Evolutionary and pulsational properties of low-mass white dwarf stars with oxygen cores resulting from close binary evolution
dc.creator.none.fl_str_mv Althaus, Leandro Gabriel
Corsico, Alejandro Hugo
Gautschy, Alfred
Han, Z.
Serenelli, A. M.
Panei, Jorge Alejandro
author Althaus, Leandro Gabriel
author_facet Althaus, Leandro Gabriel
Corsico, Alejandro Hugo
Gautschy, Alfred
Han, Z.
Serenelli, A. M.
Panei, Jorge Alejandro
author_role author
author2 Corsico, Alejandro Hugo
Gautschy, Alfred
Han, Z.
Serenelli, A. M.
Panei, Jorge Alejandro
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv BINARIES: GENERAL
STARS: EVOLUTION
STARS: INTERIORS
STARS: OSCILLATIONS
WHITE DWARFS
topic BINARIES: GENERAL
STARS: EVOLUTION
STARS: INTERIORS
STARS: OSCILLATIONS
WHITE DWARFS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The present work is designed to explore the evolutionary and pulsational properties of low-mass white dwarfs with carbon/oxygen cores. In particular, we follow the evolution of a 0.33-M⊙ white dwarf remnant in a self-consistent way with the predictions of nuclear burning, element diffusion and the history of the white dwarf progenitor. Attention is focused on the occurrence of hydrogen shell flashes induced by diffusion processes during cooling phases. The evolutionary stages prior to the white dwarf formation are also fully accounted for by computing the conservative binary evolution of an initially 2.5-M⊙ Population I star with a 1.25-M ⊙ companion, and with period Pi = 3d. Evolution is followed down to the domain of the ZZ Ceti stars on the white dwarf cooling branch. We find that chemical diffusion induces the occurrence of an additional hydrogen thermonuclear flash, which leads to stellar models with thin hydrogen envelopes. As a result, a fast cooling is encountered at advanced stages of evolution. In addition, we explore the adiabatic pulsational properties of the resulting white dwarf models. As compared with their helium-core counterparts, low-mass oxygen-core white dwarfs are characterized by a pulsational spectrum much more featured, an aspect which could eventually be used for distinguishing both types of stars, if low-mass white dwarfs were in fact found to pulsate as ZZ Ceti-type variables. Finally, we perform a non-adiabatic pulsational analysis on the resulting carbon/oxygen low-mass white dwarf models.
Fil: Althaus, Leandro Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; Argentina
Fil: Corsico, Alejandro Hugo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; Argentina
Fil: Gautschy, Alfred. Froburgstr. 43; Suiza
Fil: Han, Z.. Chinese Academy of Sciences; República de China
Fil: Serenelli, A. M.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; Argentina
Fil: Panei, Jorge Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica la Plata; Argentina
description The present work is designed to explore the evolutionary and pulsational properties of low-mass white dwarfs with carbon/oxygen cores. In particular, we follow the evolution of a 0.33-M⊙ white dwarf remnant in a self-consistent way with the predictions of nuclear burning, element diffusion and the history of the white dwarf progenitor. Attention is focused on the occurrence of hydrogen shell flashes induced by diffusion processes during cooling phases. The evolutionary stages prior to the white dwarf formation are also fully accounted for by computing the conservative binary evolution of an initially 2.5-M⊙ Population I star with a 1.25-M ⊙ companion, and with period Pi = 3d. Evolution is followed down to the domain of the ZZ Ceti stars on the white dwarf cooling branch. We find that chemical diffusion induces the occurrence of an additional hydrogen thermonuclear flash, which leads to stellar models with thin hydrogen envelopes. As a result, a fast cooling is encountered at advanced stages of evolution. In addition, we explore the adiabatic pulsational properties of the resulting white dwarf models. As compared with their helium-core counterparts, low-mass oxygen-core white dwarfs are characterized by a pulsational spectrum much more featured, an aspect which could eventually be used for distinguishing both types of stars, if low-mass white dwarfs were in fact found to pulsate as ZZ Ceti-type variables. Finally, we perform a non-adiabatic pulsational analysis on the resulting carbon/oxygen low-mass white dwarf models.
publishDate 2004
dc.date.none.fl_str_mv 2004-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/36898
Althaus, Leandro Gabriel; Corsico, Alejandro Hugo; Gautschy, Alfred; Han, Z.; Serenelli, A. M.; et al.; Evolutionary and pulsational properties of low-mass white dwarf stars with oxygen cores resulting from close binary evolution; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 347; 1; 1-2004; 125-136
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/36898
identifier_str_mv Althaus, Leandro Gabriel; Corsico, Alejandro Hugo; Gautschy, Alfred; Han, Z.; Serenelli, A. M.; et al.; Evolutionary and pulsational properties of low-mass white dwarf stars with oxygen cores resulting from close binary evolution; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 347; 1; 1-2004; 125-136
0035-8711
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/347/1/125/1269815
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1365-2966.2004.07183.x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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