Observational constraints on Chaplygin cosmology in a braneworld scenario with induced gravity and curvature effect

Abstract

We study cosmological dynamics and late-time evolution of an extended induced gravity braneworld scenario. In this scenario, curvature effects are taken into account via the Gauss-Bonnet term in the bulk action and there is also a Chaplygin gas component on the brane. We show that this model mimics an effective phantom behavior in a relatively wider range of redshifts than previously formulated models. It also provides a natural framework for smooth crossing of the phantom-divide line due to presence of the Chaplygin gas component on the brane. We confront the model with observational data from type Ia Supernovae, Cosmic Microwave Background and Baryon Acoustic Oscillations to constraint the model parameters space.

19 pages, 11 figures, Accepted for publication in MNRAS

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Cited by in corpus (5)

• Black hole in a generalized Chaplygin-Jacobi dark fluid: shadow and light deflection angle
• On the concordance of cosmological data in the case of the generalized Chaplygin gas
• Thermodynamical analysis on a braneworld scenario with curvature corrections
• Gauss-Bonnet Braneworld Cosmology with Modified Induced Gravity on the Brane
• On the cosmological viability of the Hu-Sawicki type modified induced gravity