Seismology of a massive pulsating hydrogen atmosphere white dwarf
- Autores
- Kepler, S. O.; Pelisoli, Ingrid; Peçanha, Viviane; Costa, J. E. S.; Fraga, Luciano; Hermes, J. J.; Winget, D. E.; Castanheira, Barbara; Córsico, Alejandro Hugo; Romero, Alejandra Daniela; Althaus, Leandro Gabriel; Kleinman, S. J.; Nitta, A.; Koester, D.; Külebi, Baybars; Jordan, Stefan; Kanaan, Antonio
- Año de publicación
- 2012
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We report our observations of the new pulsating hydrogen atmosphere white dwarf SDSS J132350.28+010304.22. We discovered periodic photometric variations in frequency and amplitude that are commensurate with nonradial g-mode pulsations in ZZ Ceti stars. This, along with estimates for the star's temperature and gravity, establishes it as a massive ZZ Ceti star. We used time-series photometric observations with the 4.1m SOAR Telescope, complemented by contemporary McDonald Observatory 2.1m data, to discover the photometric variability. The light curve of SDSS J132350.28+010304.22 shows at least nine detectable frequencies. We used these frequencies to make an asteroseismic determination of the total mass and effective temperature of the star: M= 0.88 ± 0.02 M and T eff = 12, 100 ± 140 K. These values are consistent with those derived from the optical spectra and photometric colors.
Facultad de Ciencias Astronómicas y Geofísicas - Materia
-
Ciencias Astronómicas
stars: fundamental parameters
stars: oscillations
white dwarfs - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/84986
Ver los metadatos del registro completo
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Seismology of a massive pulsating hydrogen atmosphere white dwarfKepler, S. O.Pelisoli, IngridPeçanha, VivianeCosta, J. E. S.Fraga, LucianoHermes, J. J.Winget, D. E.Castanheira, BarbaraCórsico, Alejandro HugoRomero, Alejandra DanielaAlthaus, Leandro GabrielKleinman, S. J.Nitta, A.Koester, D.Külebi, BaybarsJordan, StefanKanaan, AntonioCiencias Astronómicasstars: fundamental parametersstars: oscillationswhite dwarfsWe report our observations of the new pulsating hydrogen atmosphere white dwarf SDSS J132350.28+010304.22. We discovered periodic photometric variations in frequency and amplitude that are commensurate with nonradial g-mode pulsations in ZZ Ceti stars. This, along with estimates for the star's temperature and gravity, establishes it as a massive ZZ Ceti star. We used time-series photometric observations with the 4.1m SOAR Telescope, complemented by contemporary McDonald Observatory 2.1m data, to discover the photometric variability. The light curve of SDSS J132350.28+010304.22 shows at least nine detectable frequencies. We used these frequencies to make an asteroseismic determination of the total mass and effective temperature of the star: M= 0.88 ± 0.02 M and T eff = 12, 100 ± 140 K. These values are consistent with those derived from the optical spectra and photometric colors.Facultad de Ciencias Astronómicas y Geofísicas2012info: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/10915/84986enginfo:eu-repo/semantics/altIdentifier/issn/0004-637Xinfo:eu-repo/semantics/altIdentifier/doi/10.1088/0004-637X/757/2/177info: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:UNLP2025-10-15T11:07:56Zoai:sedici.unlp.edu.ar:10915/84986Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:07:57.124SEDICI (UNLP) - Universidad Nacional de La Platafalse |
| dc.title.none.fl_str_mv |
Seismology of a massive pulsating hydrogen atmosphere white dwarf |
| title |
Seismology of a massive pulsating hydrogen atmosphere white dwarf |
| spellingShingle |
Seismology of a massive pulsating hydrogen atmosphere white dwarf Kepler, S. O. Ciencias Astronómicas stars: fundamental parameters stars: oscillations white dwarfs |
| title_short |
Seismology of a massive pulsating hydrogen atmosphere white dwarf |
| title_full |
Seismology of a massive pulsating hydrogen atmosphere white dwarf |
| title_fullStr |
Seismology of a massive pulsating hydrogen atmosphere white dwarf |
| title_full_unstemmed |
Seismology of a massive pulsating hydrogen atmosphere white dwarf |
| title_sort |
Seismology of a massive pulsating hydrogen atmosphere white dwarf |
| dc.creator.none.fl_str_mv |
Kepler, S. O. Pelisoli, Ingrid Peçanha, Viviane Costa, J. E. S. Fraga, Luciano Hermes, J. J. Winget, D. E. Castanheira, Barbara Córsico, Alejandro Hugo Romero, Alejandra Daniela Althaus, Leandro Gabriel Kleinman, S. J. Nitta, A. Koester, D. Külebi, Baybars Jordan, Stefan Kanaan, Antonio |
| author |
Kepler, S. O. |
| author_facet |
Kepler, S. O. Pelisoli, Ingrid Peçanha, Viviane Costa, J. E. S. Fraga, Luciano Hermes, J. J. Winget, D. E. Castanheira, Barbara Córsico, Alejandro Hugo Romero, Alejandra Daniela Althaus, Leandro Gabriel Kleinman, S. J. Nitta, A. Koester, D. Külebi, Baybars Jordan, Stefan Kanaan, Antonio |
| author_role |
author |
| author2 |
Pelisoli, Ingrid Peçanha, Viviane Costa, J. E. S. Fraga, Luciano Hermes, J. J. Winget, D. E. Castanheira, Barbara Córsico, Alejandro Hugo Romero, Alejandra Daniela Althaus, Leandro Gabriel Kleinman, S. J. Nitta, A. Koester, D. Külebi, Baybars Jordan, Stefan Kanaan, Antonio |
| author2_role |
author author author author author author author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Ciencias Astronómicas stars: fundamental parameters stars: oscillations white dwarfs |
| topic |
Ciencias Astronómicas stars: fundamental parameters stars: oscillations white dwarfs |
| dc.description.none.fl_txt_mv |
We report our observations of the new pulsating hydrogen atmosphere white dwarf SDSS J132350.28+010304.22. We discovered periodic photometric variations in frequency and amplitude that are commensurate with nonradial g-mode pulsations in ZZ Ceti stars. This, along with estimates for the star's temperature and gravity, establishes it as a massive ZZ Ceti star. We used time-series photometric observations with the 4.1m SOAR Telescope, complemented by contemporary McDonald Observatory 2.1m data, to discover the photometric variability. The light curve of SDSS J132350.28+010304.22 shows at least nine detectable frequencies. We used these frequencies to make an asteroseismic determination of the total mass and effective temperature of the star: M= 0.88 ± 0.02 M and T eff = 12, 100 ± 140 K. These values are consistent with those derived from the optical spectra and photometric colors. Facultad de Ciencias Astronómicas y Geofísicas |
| description |
We report our observations of the new pulsating hydrogen atmosphere white dwarf SDSS J132350.28+010304.22. We discovered periodic photometric variations in frequency and amplitude that are commensurate with nonradial g-mode pulsations in ZZ Ceti stars. This, along with estimates for the star's temperature and gravity, establishes it as a massive ZZ Ceti star. We used time-series photometric observations with the 4.1m SOAR Telescope, complemented by contemporary McDonald Observatory 2.1m data, to discover the photometric variability. The light curve of SDSS J132350.28+010304.22 shows at least nine detectable frequencies. We used these frequencies to make an asteroseismic determination of the total mass and effective temperature of the star: M= 0.88 ± 0.02 M and T eff = 12, 100 ± 140 K. These values are consistent with those derived from the optical spectra and photometric colors. |
| publishDate |
2012 |
| dc.date.none.fl_str_mv |
2012 |
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article |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/84986 |
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| dc.language.none.fl_str_mv |
eng |
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eng |
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info:eu-repo/semantics/altIdentifier/issn/0004-637X info:eu-repo/semantics/altIdentifier/doi/10.1088/0004-637X/757/2/177 |
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