Tuesday, July 9, 2013

1307.2002 (Andrea Marchini et al.)

Updated constraints from the PLANCK experiment on modified gravity    [PDF]

Andrea Marchini, Valentina Salvatelli
A modification of the action of the general relativity produces a different pattern for the growth of the cosmic structures below a certain length-scale leaving an imprint on the cosmic microwave background (CMB) anisotropies. We re-examine the upper limits on the length-scale parameter B0 of f (R) models using the recent data from the Planck satellite experiment. We also investigate the combined constraints obtained when including the Hubble Space Telescope H0 measurement and the baryon acoustic oscillations measurements from the SDSS, WiggleZ and BOSS surveys.
View original: http://arxiv.org/abs/1307.2002

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