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Cosmology with a Variable Chaplygin Gas

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arxiv astro-ph/0506091 v3 pith:YX7262ST submitted 2005-06-04 astro-ph gr-qchep-ph

classification astro-phgr-qchep-ph
keywords modelchaplygindarkgeneralizedbackgroundcaseconsiderconstraints
verification ladder T0 review T1 audit T2 compute T3 formal
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We consider a new generalized Chaplygin gas model that includes the original Chaplygin gas model as a special case. In such a model the generalized Chaplygin gas evolves as from dust to quiessence or phantom. We show that the background evolution for the model is equivalent to that for a coupled dark energy model with dark matter. The constraints from the current type Ia supernova data favour a phantom-like Chaplygin gas model.

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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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