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dc.date.accessioned 2019-10-31T17:06:00Z
dc.date.available 2019-10-31T17:06:00Z
dc.date.issued 2012
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/84570
dc.description.abstract We employ a state-of-the-art asteroseismological model of G117-B15A, the archetype of the H-rich atmosphere (DA) white dwarf pulsators (also known as DAV or ZZ Ceti variables), and use the most recently measured value of the rate of period change for the dominant mode of this pulsating star to derive a new constraint on the mass of axion, the still conjectural non-baryonic particle considered as a candidate for dark matter of the Universe. Assuming that G117-B15A is truly represented by our asteroseismological model, and, in particular, that the period of the dominant mode is associated with a pulsation g mode trapped in the H envelope, we find strong indications of the existence of extra cooling in this star, compatible with emission of axions of mass macos2β=17.4-2.7+2.3 meV. en
dc.format.extent 2792-2799 es
dc.language en es
dc.subject Asteroseismology es
dc.subject Elementary particles es
dc.subject Stars: individual: ZZ Ceti stars es
dc.subject Stars: interiors es
dc.subject Stars: oscillations es
dc.subject White dwarfs es
dc.title The rate of cooling of the pulsating white dwarf star G117-B15A: A new asteroseismological inference of the axion mass en
dc.type Articulo es
sedici.identifier.other doi:10.1111/j.1365-2966.2012.21401.x es
sedici.identifier.other eid:2-s2.0-84864936032 es
sedici.identifier.issn 0035-8711 es
sedici.creator.person Córsico, Alejandro Hugo es
sedici.creator.person Althaus, Leandro Gabriel es
sedici.creator.person Miller Bertolami, Marcelo Miguel es
sedici.creator.person Romero, Alejandra Daniela es
sedici.creator.person García-Berro, E. es
sedici.creator.person Isern, J. es
sedici.creator.person Kepler, S. O. es
sedici.subject.materias Ciencias Astronómicas es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Astronómicas y Geofísicas es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Monthly Notices of the Royal Astronomical Society es
sedici.relation.journalVolumeAndIssue vol. 424, no. 4 es
sedici.rights.sherpa * Color: verde* Pre-print del autor: si* Post-print del autor: si* Versión de editor/PDF:si* Condiciones:>>El pre-print sólo puede depositarse antes de la aceptación>>Pre-print on author's personal website, employer website, free public server or pre-prints in subject area>>El pre-print debe acompañarse de una declaración establecida (ver enlace)>>Pre-print set statement must be amended upon publication (see policy)>>La versión de editor/PDF puede utilizarse>>Author's Post-print on Institutional repositories or Central repositories>>Publisher's version/PDF on Institutional repositories or Central repositories, with all rights reserved (see policy)>>La fuente editorial debe reconocerse>>Debe ir enlazado a la versión de editor>>La copia archivada debe acompañarse de la frase establecida (ver Política)* Link a Sherpa: http://sherpa.ac.uk/romeo/issn/0035-8711/es/


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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Excepto donde se diga explícitamente, este item se publica bajo la siguiente licencia Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)