A Model of f (R) Gravity as an Alternative for Dark Matter in Spiral Galaxies

Solmaz Asgari, Reza Saffari


In this paper we study consistent solutions of spherically symmetric space in metric f (R) gravity theory. Here
we inversely obtain a generic action from metric solutions that describe flat rotation curves in spiral galaxies
without dark matter. Then we show that obtained solutions are in conformity with Tully-Fisher relation and
modified Newtonian dynamics, which are two strong constraints in justification of flat rotation curves in spiral

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DOI: http://dx.doi.org/10.5539/apr.v2n1p99

Applied Physics Research   ISSN 1916-9639 (Print)   ISSN 1916-9647 (Online)

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