Mostrar el registro sencillo del ítem

dc.contributor.author
Kraiselburd, Lucila  
dc.contributor.author
Landau, Susana Judith  
dc.contributor.author
Negrelli, Carolina Soledad  
dc.contributor.author
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  
dc.subject
Cosmology: Miscellaneous  
dc.subject
Stars: White Dwarfs  
dc.subject
Supernovae: General  
dc.subject.classification
Astronomía  
dc.subject.classification
Ciencias Físicas  
dc.subject.classification
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