dc.creatorRomero, Alejandra D.
dc.creatorCorsico, Alejandro Hugo
dc.creatorCastanheira, B. G.
dc.creatorde Gerónimo, Francisco César
dc.creatorKepler, S. O.
dc.creatorKoester, D.
dc.creatorKawka, A.
dc.creatorAlthaus, Leandro Gabriel
dc.creatorHermes, J. J.
dc.creatorBonato, C.
dc.creatorGianninas, A.
dc.date.accessioned2018-04-06T15:46:43Z
dc.date.accessioned2018-11-06T14:08:53Z
dc.date.available2018-04-06T15:46:43Z
dc.date.available2018-11-06T14:08:53Z
dc.date.created2018-04-06T15:46:43Z
dc.date.issued2017-12
dc.identifierRomero, Alejandra D.; Corsico, Alejandro Hugo; Castanheira, B. G.; de Gerónimo, Francisco César; Kepler, S. O.; et al.; Probing the structure of Kepler ZZ Ceti Stars with full evolutionary models-based asteroseismology; IOP Publishing; Astrophysical Journal; 851; 1; 12-2017; 60-73
dc.identifier0004-637X
dc.identifierhttp://hdl.handle.net/11336/41119
dc.identifierCONICET Digital
dc.identifierCONICET
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1883271
dc.description.abstractWe 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.
dc.languageeng
dc.publisherIOP Publishing
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3847/1538-4357/aa9899
dc.relationinfo:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.3847/1538-4357/aa9899/meta
dc.rightshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectZZ Ceti stars (estrella)
dc.subjectVariable stars
dc.subjectWhite dwarfs
dc.titleProbing the structure of Kepler ZZ Ceti Stars with full evolutionary models-based asteroseismology
dc.typeArtículos de revistas
dc.typeArtículos de revistas
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución