Current status of modified gravity

Current status of modified gravity

DSpace Repository

Current status of modified gravity

Show full item record

View       (5.490Mb)

Boubekeur, Lotfi; Giusarma, Elena; Mena Requejo, Olga; Ramírez Rodríguez, Héctor Ariel
This document is a artículoDate2014

Este documento está disponible también en :
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.

    Boubekeur, Lotfi Giusarma, Elena Mena Requejo, Olga Ramírez Rodríguez, Héctor 2014 Current status of modified gravity Physical Review D 90 10 103512

This item appears in the following Collection(s)

Show full item record

Search DSpace

Advanced Search