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Current status of modified gravity

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Current status of modified gravity

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dc.contributor.author	Boubekeur, Lotfi
dc.contributor.author	Giusarma, Elena
dc.contributor.author	Mena Requejo, Olga
dc.contributor.author	Ramírez Rodríguez, Héctor Ariel
dc.date.accessioned	2015-04-20T10:38:06Z
dc.date.available	2015-04-20T10:38:06Z
dc.date.issued	2014
dc.identifier.citation	Boubekeur, Lotfi Giusarma, Elena Mena Requejo, Olga Ramírez Rodríguez, Héctor 2014 Current status of modified gravity Physical Review D 90 10 103512
dc.identifier.uri	http://hdl.handle.net/10550/43235
dc.description.abstract	We revisit the cosmological viability of the Hu-Sawicki modified gravity scenario. The impact of such a modification on the different cosmological observables, including gravitational waves, is carefully described. The most recent cosmological data, as well as constraints on the relationship between the clustering parameter sigma(8) and the current matter mass-energy density Omega(m) from cluster number counts and weak lensing tomography, are considered in our numerical calculations. The strongest bound we find is vertical bar f(R0)vertical bar < 3.7 x 10(-6) at 95% C.L. Forthcoming cluster surveys covering 10 000 deg(2) in the sky, with galaxy surface densities of O(10) arcmin(-2) could improve the precision in the sigma(8)-Omega(m) relationship, tightening the above constraint.
dc.language.iso	eng
dc.relation.ispartof	Physical Review D, 2014, vol. 90, num. 10, p. 103512
dc.subject	Física
dc.subject	Astronomia
dc.title	Current status of modified gravity
dc.type	journal article	es_ES
dc.date.updated	2015-04-20T10:38:06Z
dc.identifier.doi	10.1103/PhysRevD.90.103512
dc.identifier.idgrec	102128
dc.rights.accessRights	open access	es_ES