Spherically symmeteric dark energy structure in the context of Chaplygin gas model

Abiy G. Tekola

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arXiv · 0706.0804

Spherically symmeteric dark energy structure in the context of Chaplygin gas model

Abiy G. Tekola

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Abstract

Spherically symmetric dark energy structures are investigated in the framework of a generalized Chaplygin gas (GCG), which has an equation of state of the form $P = - A/ρ^α} $. We also study these in a modified GCG equation of state, which includes a matter term, i.e. $P = σ^{2} ρ- A/ρ^α$. The results of the latter are then compared with some observational data on low-surface-brightness galaxies which are supposed to be dominated by dark matter.

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Abiy G. Tekola. 2007-06-06. Spherically symmeteric dark energy structure in the context of Chaplygin gas model. https://arxiv.org/abs/0706.0804

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