Carbon-oxygen ultra-massive white dwarfs in general relativity

Autores
Althaus, Leandro Gabriel; Corsico, Alejandro Hugo; Camisassa, María Eugenia; Torres, Santiago; Gil Pons, Pilar; Rebassa Mansergas, Alberto; Raddi, Roberto
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We employ the La Plata stellar evolution code, lpcode, to compute the first set of constant rest-mass carbon-oxygen ultra-massive white dwarf evolutionary sequences for masses higher than 1.29 M⊙ that fully take into account the effects of general relativity on their structural and evolutionary properties. In addition, we employ the lp-pul pulsation code to compute adiabatic g-mode Newtonian pulsations on our fully relativistic equilibrium white dwarf models. We find that carbon-oxygen white dwarfs more massive than 1.382 M⊙ become gravitationally unstable with respect to general relativity effects, being this limit higher than the 1.369 M⊙ we found for oxygen-neon white dwarfs. As the stellar mass approaches the limiting mass value, the stellar radius becomes substantially smaller compared with the Newtonian models. Also, the thermo-mechanical and evolutionary properties of the most massive white dwarfs are strongly affected by general relativity effects. We also provide magnitudes for our cooling sequences in different passbands. Finally, we explore for the first time the pulsational properties of relativistic ultra-massive white dwarfs and find that the period spacings and oscillation kinetic energies are strongly affected in the case of most massive white dwarfs. We conclude that the general relativity effects should be taken into account for an accurate assessment of the structural, evolutionary, and pulsational properties of white dwarfs with masses above ∼1.30 M⊙.
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: Camisassa, María Eugenia. Universidad Politécnica de Catalunya; España
Fil: Torres, Santiago. Universidad Politécnica de Catalunya; España
Fil: Gil Pons, Pilar. Universidad Politécnica de Catalunya; España
Fil: Rebassa Mansergas, Alberto. Universidad Politécnica de Catalunya; España
Fil: Raddi, Roberto. Universidad Politécnica de Catalunya; España
Materia
STARS: EVOLUTION
STARS: INTERIOR
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:11336/232730
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/232730
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Carbon-oxygen ultra-massive white dwarfs in general relativityAlthaus, Leandro GabrielCorsico, Alejandro HugoCamisassa, María EugeniaTorres, SantiagoGil Pons, PilarRebassa Mansergas, AlbertoRaddi, RobertoSTARS: EVOLUTIONSTARS: INTERIORWHITE DWARFShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We employ the La Plata stellar evolution code, lpcode, to compute the first set of constant rest-mass carbon-oxygen ultra-massive white dwarf evolutionary sequences for masses higher than 1.29 M⊙ that fully take into account the effects of general relativity on their structural and evolutionary properties. In addition, we employ the lp-pul pulsation code to compute adiabatic g-mode Newtonian pulsations on our fully relativistic equilibrium white dwarf models. We find that carbon-oxygen white dwarfs more massive than 1.382 M⊙ become gravitationally unstable with respect to general relativity effects, being this limit higher than the 1.369 M⊙ we found for oxygen-neon white dwarfs. As the stellar mass approaches the limiting mass value, the stellar radius becomes substantially smaller compared with the Newtonian models. Also, the thermo-mechanical and evolutionary properties of the most massive white dwarfs are strongly affected by general relativity effects. We also provide magnitudes for our cooling sequences in different passbands. Finally, we explore for the first time the pulsational properties of relativistic ultra-massive white dwarfs and find that the period spacings and oscillation kinetic energies are strongly affected in the case of most massive white dwarfs. We conclude that the general relativity effects should be taken into account for an accurate assessment of the structural, evolutionary, and pulsational properties of white dwarfs with masses above ∼1.30 M⊙.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: Camisassa, María Eugenia. Universidad Politécnica de Catalunya; EspañaFil: Torres, Santiago. Universidad Politécnica de Catalunya; EspañaFil: Gil Pons, Pilar. Universidad Politécnica de Catalunya; EspañaFil: Rebassa Mansergas, Alberto. Universidad Politécnica de Catalunya; EspañaFil: Raddi, Roberto. Universidad Politécnica de Catalunya; EspañaWiley Blackwell Publishing, Inc2023-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/232730Althaus, Leandro Gabriel; Corsico, Alejandro Hugo; Camisassa, María Eugenia; Torres, Santiago; Gil Pons, Pilar; et al.; Carbon-oxygen ultra-massive white dwarfs in general relativity; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 523; 3; 8-2023; 4492-45030035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stad1720info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/523/3/4492/7192442info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:36:26Zoai:ri.conicet.gov.ar:11336/232730instacron: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 09:36:26.745CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Carbon-oxygen ultra-massive white dwarfs in general relativity
title Carbon-oxygen ultra-massive white dwarfs in general relativity
spellingShingle Carbon-oxygen ultra-massive white dwarfs in general relativity
Althaus, Leandro Gabriel
STARS: EVOLUTION
STARS: INTERIOR
WHITE DWARFS
title_short Carbon-oxygen ultra-massive white dwarfs in general relativity
title_full Carbon-oxygen ultra-massive white dwarfs in general relativity
title_fullStr Carbon-oxygen ultra-massive white dwarfs in general relativity
title_full_unstemmed Carbon-oxygen ultra-massive white dwarfs in general relativity
title_sort Carbon-oxygen ultra-massive white dwarfs in general relativity
dc.creator.none.fl_str_mv Althaus, Leandro Gabriel
Corsico, Alejandro Hugo
Camisassa, María Eugenia
Torres, Santiago
Gil Pons, Pilar
Rebassa Mansergas, Alberto
Raddi, Roberto
author Althaus, Leandro Gabriel
author_facet Althaus, Leandro Gabriel
Corsico, Alejandro Hugo
Camisassa, María Eugenia
Torres, Santiago
Gil Pons, Pilar
Rebassa Mansergas, Alberto
Raddi, Roberto
author_role author
author2 Corsico, Alejandro Hugo
Camisassa, María Eugenia
Torres, Santiago
Gil Pons, Pilar
Rebassa Mansergas, Alberto
Raddi, Roberto
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv STARS: EVOLUTION
STARS: INTERIOR
WHITE DWARFS
topic STARS: EVOLUTION
STARS: INTERIOR
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 We employ the La Plata stellar evolution code, lpcode, to compute the first set of constant rest-mass carbon-oxygen ultra-massive white dwarf evolutionary sequences for masses higher than 1.29 M⊙ that fully take into account the effects of general relativity on their structural and evolutionary properties. In addition, we employ the lp-pul pulsation code to compute adiabatic g-mode Newtonian pulsations on our fully relativistic equilibrium white dwarf models. We find that carbon-oxygen white dwarfs more massive than 1.382 M⊙ become gravitationally unstable with respect to general relativity effects, being this limit higher than the 1.369 M⊙ we found for oxygen-neon white dwarfs. As the stellar mass approaches the limiting mass value, the stellar radius becomes substantially smaller compared with the Newtonian models. Also, the thermo-mechanical and evolutionary properties of the most massive white dwarfs are strongly affected by general relativity effects. We also provide magnitudes for our cooling sequences in different passbands. Finally, we explore for the first time the pulsational properties of relativistic ultra-massive white dwarfs and find that the period spacings and oscillation kinetic energies are strongly affected in the case of most massive white dwarfs. We conclude that the general relativity effects should be taken into account for an accurate assessment of the structural, evolutionary, and pulsational properties of white dwarfs with masses above ∼1.30 M⊙.
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: Camisassa, María Eugenia. Universidad Politécnica de Catalunya; España
Fil: Torres, Santiago. Universidad Politécnica de Catalunya; España
Fil: Gil Pons, Pilar. Universidad Politécnica de Catalunya; España
Fil: Rebassa Mansergas, Alberto. Universidad Politécnica de Catalunya; España
Fil: Raddi, Roberto. Universidad Politécnica de Catalunya; España
description We employ the La Plata stellar evolution code, lpcode, to compute the first set of constant rest-mass carbon-oxygen ultra-massive white dwarf evolutionary sequences for masses higher than 1.29 M⊙ that fully take into account the effects of general relativity on their structural and evolutionary properties. In addition, we employ the lp-pul pulsation code to compute adiabatic g-mode Newtonian pulsations on our fully relativistic equilibrium white dwarf models. We find that carbon-oxygen white dwarfs more massive than 1.382 M⊙ become gravitationally unstable with respect to general relativity effects, being this limit higher than the 1.369 M⊙ we found for oxygen-neon white dwarfs. As the stellar mass approaches the limiting mass value, the stellar radius becomes substantially smaller compared with the Newtonian models. Also, the thermo-mechanical and evolutionary properties of the most massive white dwarfs are strongly affected by general relativity effects. We also provide magnitudes for our cooling sequences in different passbands. Finally, we explore for the first time the pulsational properties of relativistic ultra-massive white dwarfs and find that the period spacings and oscillation kinetic energies are strongly affected in the case of most massive white dwarfs. We conclude that the general relativity effects should be taken into account for an accurate assessment of the structural, evolutionary, and pulsational properties of white dwarfs with masses above ∼1.30 M⊙.
publishDate 2023
dc.date.none.fl_str_mv 2023-08
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/11336/232730
Althaus, Leandro Gabriel; Corsico, Alejandro Hugo; Camisassa, María Eugenia; Torres, Santiago; Gil Pons, Pilar; et al.; Carbon-oxygen ultra-massive white dwarfs in general relativity; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 523; 3; 8-2023; 4492-4503
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/232730
identifier_str_mv Althaus, Leandro Gabriel; Corsico, Alejandro Hugo; Camisassa, María Eugenia; Torres, Santiago; Gil Pons, Pilar; et al.; Carbon-oxygen ultra-massive white dwarfs in general relativity; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 523; 3; 8-2023; 4492-4503
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/doi/10.1093/mnras/stad1720
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/523/3/4492/7192442
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
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
_version_ 1844613142735224832
score 13.070432

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