7-11 July 2014
Africa/Johannesburg timezone
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Quasi-Newtonian and anti-Newtonian universes in f(R)-gravity

Presented by Dr. Amare ABEBE on 11 Jul 2014 from 10:20 to 10:40
Type: Oral Presentation
Session: Space
Track: Track D1 - Astrophysics

Abstract

We investigate a class of shear-free and irrotational perfect fluid cosmological models in the context of modified (higher-order) gravitational theories. In particular, we generalize the potential and acceleration terms of the quasi-Newtonian formulation of General Relativity. We also show the existence of ``anti-Newtonian” cosmological models based on a consistency analysis of Einstein’s field equations applied to f(R)-gravity models.

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Place

Room: D Les 204


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