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dc.contributor.author
Kraiselburd, Lucila
dc.contributor.author
Landau, Susana Judith
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Negrelli, Carolina Soledad
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García Berro, Enrique
dc.date.available
2018-05-30T17:13:51Z
dc.date.issued
2015-04
dc.identifier.citation
Kraiselburd, 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.identifier.issn
0004-640X
dc.identifier.uri
http://hdl.handle.net/11336/46647
dc.description.abstract
The 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.format
application/pdf
dc.language.iso
eng
dc.publisher
Springer
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Quasars: Absorption Lines
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Cosmology: Miscellaneous
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Stars: White Dwarfs
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Supernovae: General
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Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
The variation of the fine structure constant: testing the dipole model with thermonuclear supernovae
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-04-27T18:50:53Z
dc.identifier.eissn
1572-946X
dc.journal.volume
357
dc.journal.pagination
4-11
dc.journal.pais
Alemania
dc.journal.ciudad
Berlín
dc.description.fil
Fil: 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.description.fil
Fil: 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.description.fil
Fil: 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.description.fil
Fil: García Berro, Enrique. Universidad Politécnica de Catalunya; España. Institut d'Estudis Espacials de Catalunya; España
dc.journal.title
Astrophysics And Space Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1007/s10509-015-2325-4
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s10509-015-2325-4
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1412.3418
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