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
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/87107
Ver los metadatos del registro completo
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 |