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dc.creatorKraiselburd, Lucila-
dc.creatorLandau, Susana Judith-
dc.creatorNegrelli, Carolina Soledad-
dc.creatorGarcía Berro, Enrique-
dc.date2018-05-30T17:13:51Z-
dc.date2018-05-30T17:13:51Z-
dc.date2015-04-
dc.date2018-04-27T18:50:53Z-
dc.date.accessioned2019-04-29T15:52:14Z-
dc.date.available2019-04-29T15:52:14Z-
dc.date.issued2015-04-
dc.identifierKraiselburd, Lucila; Landau, Susana Judith; Negrelli, Carolina Soledad; García Berro, Enrique; The variation of the fine structure constant: testing the dipole model with thermonuclear supernovae; Springer; Astrophysics And Space Science; 357; 4-2015; 4-11-
dc.identifier0004-640X-
dc.identifierhttp://hdl.handle.net/11336/46647-
dc.identifier1572-946X-
dc.identifierCONICET Digital-
dc.identifierCONICET-
dc.identifier.urihttp://rodna.bn.gov.ar:8080/jspui/handle/bnmm/304197-
dc.descriptionThe large-number hypothesis conjectures that fundamental constants may vary. Accordingly, the space-time variation of fundamental constants has been an active subject of research for decades. Recently, using data obtained with large telescopes a phenomenological model in which the fine structure constant might vary spatially has been proposed. We test whether this hypothetical spatial variation of α, which follows a dipole law, is compatible with the data of distant thermonuclear supernovae. Unlike previous works, in our calculations we consider not only the variation of the luminosity distance when a varying α is adopted, but we also take into account the variation of the peak luminosity of Type Ia supernovae resulting from a variation of α. This is done using an empirical relation for the peak bolometric magnitude of thermonuclear supernovae that correctly reproduces the results of detailed numerical simulations. We find that there is no significant difference between the several phenomenological models studied here and the standard one, in which α does not vary spatially. We conclude that the present set of data of Type Ia supernovae is not able to distinguish the standard model from the dipole models, and thus cannot be used to discard nor to confirm the proposed spatial variation of α.-
dc.descriptionFil: Kraiselburd, Lucila. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina-
dc.descriptionFil: Landau, Susana Judith. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina-
dc.descriptionFil: Negrelli, Carolina Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina-
dc.descriptionFil: García Berro, Enrique. Universidad Politécnica de Catalunya; España. Institut d'Estudis Espacials de Catalunya; España-
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dc.languageeng-
dc.publisherSpringer-
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10509-015-2325-4-
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s10509-015-2325-4-
dc.relationinfo:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1412.3418-
dc.rightsinfo:eu-repo/semantics/openAccess-
dc.rightshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/-
dc.sourcereponame:CONICET Digital (CONICET)-
dc.sourceinstname:Consejo Nacional de Investigaciones Científicas y Técnicas-
dc.sourceinstacron:CONICET-
dc.subjectQuasars: absorption lines-
dc.subjectCosmology: miscellaneous-
dc.subjectStars: white dwarfs-
dc.subjectSupernovae: general-
dc.subjectAstronomía-
dc.subjectCiencias Físicas-
dc.subjectCIENCIAS NATURALES Y EXACTAS-
dc.titleThe variation of the fine structure constant: testing the dipole model with thermonuclear supernovae-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.typeinfo:ar-repo/semantics/articulo-
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