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arXiv · 0809.0546

Role of Chaplygin gas as geometrical dark energy in anisotropic brane gravity

Malihe Heydari-Fard·Hamid R. Sepangi
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Abstract

We consider an anisotropic brane-world model with Bianchi type I and V geometry, without mirror symmetry or any form of junction conditions. The generalized Chaplygin gas, which interpolates between a high density relativistic era and a non-relativistic matter phase, is a popular candidate for the present accelerated expansion of the universe. Considering the generalized Chaplygin gas as a geometrical dark energy, we obtain the general solutions in an exact parametric form for both Bianchi type I and V space-times. Finally, we study the behavior of the observationally important parameters such as the shear, anisotropic and deceleration parameter in this model.

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Malihe Heydari-Fard, Hamid R. Sepangi. 2008-09-03. Role of Chaplygin gas as geometrical dark energy in anisotropic brane gravity. https://doi.org/10.1103/physrevd.78.064007

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