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arxiv: 1206.0245 · v1 · pith:HYHQ2ZG5new · submitted 2012-06-01 · ⚛️ physics.gen-ph · gr-qc

Cosmography in F(G) modified gravity

classification ⚛️ physics.gen-ph gr-qc
keywords gravitycosmographymodelsmodifieduniversevaluesacceleratedassumption
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Investigating the accelerated expansion of the universe with cosmography is a best method to constraint cosmological models. In this work, in the $F(G)$ modified gravity framework, we obtain equations of motion in a flat FRW metric. Then we reconstruct the present day values of $F(G)$ and its derivatives with the cosmographic parameters on the only assumption that the universe is homogenous and isotropic on large scale. Also we investigate the conditions of cosmologically viable $F(G)$ gravity models with the fiducial data set values.

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