WMAP constraints on the generalized Chaplygin gas model
By M. C. Bento, O. Bertolami, A. Sen. 2003
219 citations recorded by the source corpus.
Abstract The generalized Chaplygin gas (GCG) model explains the recent accelerated expansion of the Universe via an exotic background fluid whose equation of state is given by p =− A / ρ α , where A is a positive constant and 0 α ⩽1. The model is an interesting alternative to scenarios involving scalar field potentials, with the ensuing unnatural fine tuning conditions for the underlying particle physics theories. We derive constraints on the parameter space of the model from bounds on the location of the first few peaks and troughs of the cosmic microwave background radiation (CMBR) power spectrum arising from recent WMAP and BOOMERanG data.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/7cb9a51a37b4e86dffe28040f0e10f7195b8870e
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In Astronomy and Astrophysics
In Nuclear and High Energy Physics
Citations in the corpus
- Generalized Chaplygin gas as a unified scenario of dark matter/energy: Observational constraints (2004, methodology): “Using the CMBR power spectrum measurements from BOOMERANG (de Bernardis et al. 2002) and Archeops (Benoit et al. 2003), together with the SNeIa constraints, Bento et al. (2003a) obtained, 0.74 ∼ < As ∼< 0.85, andα ∼< 0.6, which is comparable with our results.”
- Latest supernova data in the framework of the generalized Chaplygin gas model (2004, methodology): “These results were in agreement with the WMAP data (Bento et al. 2003b).”