Probing the Structure of Kepler ZZ Ceti Stars with Full Evolutionary Models-based Asteroseismology

Autores
Romero, Alejandra Daniela; Córsico, Alejandro Hugo; Castanheira, B. G.; De Gerónimo, Francisco César; Kepler, S. O.; Koester, D.; Kawka, A.; Althaus, Leandro Gabriel; Hermes, J. J.; Bonato, C.; Gianninas, A.
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present an asteroseismological analysis of four ZZ Ceti stars observed with the Kepler spacecraft: GD 1212, SDSS J113655.17+040952.6, KIC 11911480, and KIC 4552982, based on a grid of full evolutionary models of DA white dwarf (WD) stars. We employ a grid of carbon-oxygen core models, characterized by a detailed and consistent chemical inner profile for the core and the envelope. In addition to the observed periods, we take into account other information from the observational data, such as amplitudes, rotational splittings, and period spacing, as well as photometry and spectroscopy. For each star, we present an asteroseismological model that closely reproduces their observed properties. The asteroseismological stellar mass and effective temperature of the target stars are (0.632 ± 0.027 M⊙, 10737 ± 73 K) for GD 1212, (0.745 ± 0.007 M⊙, 11110 ± 69 K) for KIC 4552982, (05480 ± 0.01 M⊙, 12,721 ± 228 K) for KIC11911480, and (0.570 ± 0.01 M⊙, 12,060 ± 300 K) for SDSS J113655.17+040952.6. In general, the asteroseismological values are in good agreement with the spectroscopy. For KIC 11911480 and SDSS J113655.17+040952.6 we derive a similar seismological mass, but the hydrogen envelope is an order of magnitude thinner for SDSS J113655.17+040952.6, which is part of a binary system and went through a common envelope phase.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Astrofísica de La Plata
Materia
Ciencias Astronómicas
stars: individual (ZZ Ceti stars)
stars: variables: other
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:10915/87107

id SEDICI_2fcd2c859008f051f15335fc5eba305c
oai_identifier_str oai:sedici.unlp.edu.ar:10915/87107
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Probing the Structure of Kepler ZZ Ceti Stars with Full Evolutionary Models-based AsteroseismologyRomero, Alejandra DanielaCórsico, Alejandro HugoCastanheira, B. G.De Gerónimo, Francisco CésarKepler, S. O.Koester, D.Kawka, A.Althaus, Leandro GabrielHermes, J. J.Bonato, C.Gianninas, A.Ciencias Astronómicasstars: individual (ZZ Ceti stars)stars: variables: otherwhite dwarfsWe present an asteroseismological analysis of four ZZ Ceti stars observed with the <i>Kepler</i> spacecraft: GD 1212, SDSS J113655.17+040952.6, KIC 11911480, and KIC 4552982, based on a grid of full evolutionary models of DA white dwarf (WD) stars. We employ a grid of carbon-oxygen core models, characterized by a detailed and consistent chemical inner profile for the core and the envelope. In addition to the observed periods, we take into account other information from the observational data, such as amplitudes, rotational splittings, and period spacing, as well as photometry and spectroscopy. For each star, we present an asteroseismological model that closely reproduces their observed properties. The asteroseismological stellar mass and effective temperature of the target stars are (0.632 ± 0.027 M⊙, 10737 ± 73 K) for GD 1212, (0.745 ± 0.007 M⊙, 11110 ± 69 K) for KIC 4552982, (05480 ± 0.01 M⊙, 12,721 ± 228 K) for KIC11911480, and (0.570 ± 0.01 M⊙, 12,060 ± 300 K) for SDSS J113655.17+040952.6. In general, the asteroseismological values are in good agreement with the spectroscopy. For KIC 11911480 and SDSS J113655.17+040952.6 we derive a similar seismological mass, but the hydrogen envelope is an order of magnitude thinner for SDSS J113655.17+040952.6, which is part of a binary system and went through a common envelope phase.Facultad de Ciencias Astronómicas y GeofísicasInstituto de Astrofísica de La Plata2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/87107enginfo:eu-repo/semantics/altIdentifier/issn/0004-637Xinfo:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/aa9899info: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:UNLP2025-09-29T11:17:09Zoai:sedici.unlp.edu.ar:10915/87107Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:17:10.169SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Probing the Structure of Kepler ZZ Ceti Stars with Full Evolutionary Models-based Asteroseismology
title Probing the Structure of Kepler ZZ Ceti Stars with Full Evolutionary Models-based Asteroseismology
spellingShingle Probing the Structure of Kepler ZZ Ceti Stars with Full Evolutionary Models-based Asteroseismology
Romero, Alejandra Daniela
Ciencias Astronómicas
stars: individual (ZZ Ceti stars)
stars: variables: other
white dwarfs
title_short Probing the Structure of Kepler ZZ Ceti Stars with Full Evolutionary Models-based Asteroseismology
title_full Probing the Structure of Kepler ZZ Ceti Stars with Full Evolutionary Models-based Asteroseismology
title_fullStr Probing the Structure of Kepler ZZ Ceti Stars with Full Evolutionary Models-based Asteroseismology
title_full_unstemmed Probing the Structure of Kepler ZZ Ceti Stars with Full Evolutionary Models-based Asteroseismology
title_sort Probing the Structure of Kepler ZZ Ceti Stars with Full Evolutionary Models-based Asteroseismology
dc.creator.none.fl_str_mv Romero, Alejandra Daniela
Córsico, Alejandro Hugo
Castanheira, B. G.
De Gerónimo, Francisco César
Kepler, S. O.
Koester, D.
Kawka, A.
Althaus, Leandro Gabriel
Hermes, J. J.
Bonato, C.
Gianninas, A.
author Romero, Alejandra Daniela
author_facet Romero, Alejandra Daniela
Córsico, Alejandro Hugo
Castanheira, B. G.
De Gerónimo, Francisco César
Kepler, S. O.
Koester, D.
Kawka, A.
Althaus, Leandro Gabriel
Hermes, J. J.
Bonato, C.
Gianninas, A.
author_role author
author2 Córsico, Alejandro Hugo
Castanheira, B. G.
De Gerónimo, Francisco César
Kepler, S. O.
Koester, D.
Kawka, A.
Althaus, Leandro Gabriel
Hermes, J. J.
Bonato, C.
Gianninas, A.
author2_role author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
stars: individual (ZZ Ceti stars)
stars: variables: other
white dwarfs
topic Ciencias Astronómicas
stars: individual (ZZ Ceti stars)
stars: variables: other
white dwarfs
dc.description.none.fl_txt_mv We present an asteroseismological analysis of four ZZ Ceti stars observed with the <i>Kepler</i> spacecraft: GD 1212, SDSS J113655.17+040952.6, KIC 11911480, and KIC 4552982, based on a grid of full evolutionary models of DA white dwarf (WD) stars. We employ a grid of carbon-oxygen core models, characterized by a detailed and consistent chemical inner profile for the core and the envelope. In addition to the observed periods, we take into account other information from the observational data, such as amplitudes, rotational splittings, and period spacing, as well as photometry and spectroscopy. For each star, we present an asteroseismological model that closely reproduces their observed properties. The asteroseismological stellar mass and effective temperature of the target stars are (0.632 ± 0.027 M⊙, 10737 ± 73 K) for GD 1212, (0.745 ± 0.007 M⊙, 11110 ± 69 K) for KIC 4552982, (05480 ± 0.01 M⊙, 12,721 ± 228 K) for KIC11911480, and (0.570 ± 0.01 M⊙, 12,060 ± 300 K) for SDSS J113655.17+040952.6. In general, the asteroseismological values are in good agreement with the spectroscopy. For KIC 11911480 and SDSS J113655.17+040952.6 we derive a similar seismological mass, but the hydrogen envelope is an order of magnitude thinner for SDSS J113655.17+040952.6, which is part of a binary system and went through a common envelope phase.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Astrofísica de La Plata
description We present an asteroseismological analysis of four ZZ Ceti stars observed with the <i>Kepler</i> spacecraft: GD 1212, SDSS J113655.17+040952.6, KIC 11911480, and KIC 4552982, based on a grid of full evolutionary models of DA white dwarf (WD) stars. We employ a grid of carbon-oxygen core models, characterized by a detailed and consistent chemical inner profile for the core and the envelope. In addition to the observed periods, we take into account other information from the observational data, such as amplitudes, rotational splittings, and period spacing, as well as photometry and spectroscopy. For each star, we present an asteroseismological model that closely reproduces their observed properties. The asteroseismological stellar mass and effective temperature of the target stars are (0.632 ± 0.027 M⊙, 10737 ± 73 K) for GD 1212, (0.745 ± 0.007 M⊙, 11110 ± 69 K) for KIC 4552982, (05480 ± 0.01 M⊙, 12,721 ± 228 K) for KIC11911480, and (0.570 ± 0.01 M⊙, 12,060 ± 300 K) for SDSS J113655.17+040952.6. In general, the asteroseismological values are in good agreement with the spectroscopy. For KIC 11911480 and SDSS J113655.17+040952.6 we derive a similar seismological mass, but the hydrogen envelope is an order of magnitude thinner for SDSS J113655.17+040952.6, which is part of a binary system and went through a common envelope phase.
publishDate 2017
dc.date.none.fl_str_mv 2017
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/10915/87107
url http://sedici.unlp.edu.ar/handle/10915/87107
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0004-637X
info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/aa9899
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
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
_version_ 1844616044666159104
score 13.070432