Analysis of Rotation Curves in the framework of R^n gravity

Details Analysis of Rotation Curves in the framework of R^n gravity Analysis of Rotation Curves in the framework of R^n gravity

2007-03-10

arxiv.org/abs/astro-ph/0703243v2

Mon.Not.Roy.Astron.Soc.381:1103-1108,2007

Astronomy and Astrophysics

Astrophysics

Accepted for publication on Mon.Not.Roy.Astron.Soc

Scientific paper

10.1111/j.1365-2966.2007.12273.x

We present an analysis of a devised sample of Rotation Curves (RCs), aimed at checking the consequences of a modified f(R) gravity on galactic scales. Originally motivated by the the dark energy mystery, this theory may serve as a possibility of explaining the observed non-Keplerian profiles of galactic RCs in terms of a break-down of the Einstein General Relativity. We show that in general the power-law f(R) version could fit well the observations with reasonable values for the mass model parameters, encouraging further investigation on R^n gravity from both observational and theoretical points of view.

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