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

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arxiv 0706.0804 v1 pith:OVYDBWEL submitted 2007-06-06 gr-qc

classification gr-qc
keywords darkalphachaplyginenergyequationmattersphericallystate
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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/\rho^{\alpha}} $. We also study these in a modified GCG equation of state, which includes a matter term, i.e. $P = \sigma^{2} \rho - A/\rho^{\alpha}$. 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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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Power-Law and Logarithmic Entropy-Corrected Ricci Dark Energy in a Non-Flat FRW Universe with Viscous Interaction

    gr-qc 2025-08 reject novelty 4.0 of 10

    Analytic expressions are derived, with algebra errors, for two entropy-corrected Ricci dark energy models and their formal correspondence to Chaplygin gas, Yang-Mills, and NLED scalar field models.

  2. Scalar Field Reconstructions of Holographic Dark Energy Models with Applications to Chaplygin Gas, DBI, Yang-Mills, and NLED Frameworks

    gr-qc 2025-09 reject novelty 3.0 of 10

    A catalogue of analytic expressions equating two holographic dark energy models with Chaplygin gas, DBI, Yang-Mills and NLED scalar fields, built from standard reconstruction identities.

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