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Cosmological data analysis of f(R) gravity models

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Cosmological data analysis of f(R) gravity models

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dc.contributor.author	Gironés Delgado-Ureña, Zahara
dc.contributor.author	Marchetti, Alida
dc.contributor.author	Mena Requejo, Olga
dc.contributor.author	Peña Garay, Carlos
dc.contributor.author	Rius Dionis, Nuria
dc.date.accessioned	2014-11-03T09:56:28Z
dc.date.available	2014-11-03T09:56:28Z
dc.date.issued	2010
dc.identifier.citation	Gironés, Zahara Marchetti, Alida Mena Requejo, Olga Peña Garay, Carlos Rius Dionis, Nuria 2010 Cosmological data analysis of f(R) gravity models Journal Of Cosmology And Astroparticle Physics 2010 11 004
dc.identifier.uri	http://hdl.handle.net/10550/39528
dc.description.abstract	A class of well-behaved modified gravity models with long enough matter domination epoch and a late-time accelerated expansion is confronted with SNIa, CMB, SDSS, BAO and H(z) galaxy ages data, as well as current measurements of the linear growth of structure. We show that the combination of geometrical probes and growth data exploited here allows to rule out f(R) gravity models, in particular, the logarithmic of curvature model. We also apply solar system tests to the models in agreement with the cosmological data. We find that the exponential of the inverse of the curvature model satisfies all the observational tests considered and we derive the allowed range of parameters. Current data still allows for small deviations of Einstein gravity. Future, high precision growth data, in combination with expansion history data, will be able to distinguish tiny modifications of standard gravity from the LambdaCDM model.
dc.language.iso	eng
dc.relation.ispartof	Journal Of Cosmology And Astroparticle Physics, 2010, vol. 2010, num. 11, p. 004
dc.subject	Astronomia
dc.title	Cosmological data analysis of f(R) gravity models
dc.type	journal article	es_ES
dc.date.updated	2014-11-03T09:56:28Z
dc.identifier.doi	10.1088/1475-7516/2010/11/004
dc.identifier.idgrec	062375
dc.rights.accessRights	open access	es_ES