Ruling out the Modified Chaplygin Gas Cosmologies

Abstract

The Modified Chaplygin Gas (MCG) model belongs to the class of a unified models of dark energy (DE) and dark matter (DM). It is characterized by an equation of state (EoS) $p_c=B\rho -A/{\rho }^{\alpha }$, where the case $B=0$ corresponds to the Generalized Chaplygin Gas (GCG) model. Using a perturbative analysis and power spectrum observational data we show that the MCG model is not a sucessful candidate for the cosmic medium unless $B=0$. In this case, it reduces to the usual GCG model.

Latex file, 7 pages, 6 figures in eps format

References in corpus (18)

• Seven-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• An alternative to quintessence
• The 2dF Galaxy Redshift Survey: Power-spectrum analysis of the final dataset and cosmological implications
• Generalized Chaplygin Gas, Accelerated Expansion and Dark Energy-Matter Unification
• The Physics of Cosmic Acceleration
• Constraints on modified Chaplygin gas from recent observations and a comparison of its status with other models
• A Particle Field Theorist's Lectures on Supersymmetric, Non-Abelian Fluid Mechanics and d-Branes
• CMBR Constraint on a Modified Chaplygin Gas Model
• Bayesian Analysis of the Chaplygin Gas and Cosmological Constant Models using the SNe Ia Data
• Density Perturbations for Running Cosmological Constant
• Bayesian Analysis of the (Generalized) Chaplygin Gas and Cosmological Constant Models using the 157 gold SNe Ia Data
• Matter Power Spectrum for the Generalized Chaplygin Gas Model: The Newtonian Approach
• A mathematical analysis of the evolution of perturbations in a modified Chaplygin gas model
• Matter power spectrum for the generalized Chaplygin gas model: The relativistic case
• Bayesian Statistics and Parameter Constraints on the Generalized Chaplygin Gas Model using SNe Ia Data
• Role of Modified Chaplygin Gas as a Dark Energy Model in Collapsing Spherically Symmetric Cloud
• Power spectrum in the Chaplygin gas model: tachyonic, fluid and scalar field representations

Cited by in corpus (23)

• Dark Energy
• Modified Chaplygin Gas Cosmology
• Modified Chaplygin Gas and Solvable F-essence Cosmologies
• Higher derivative corrections of $f(R)$ gravity with varying equation of state in the case of variable $G$ and $\Lambda$
• Bouncing solutions in Rastall's theory with a barotropic fluid
• Inflationary cosmology with Chaplygin gas in Palatini formalism
• Modified Chaplygin Gas Cosmology with Bulk Viscosity
• Effects of New Viscosity Model on Cosmological Evolution
• Phenomenological Varying Modified Chaplygin Gas with Variable $G$ and $\Lambda$: Toy Models for Our Universe
• Constructing an Inflaton Potential by Mimicking Modified Chaplygin Gas
• Do sewn singularities falsify the Palatini cosmology?
• Reduced modified Chaplygin gas cosmology
• Observational Constraints on Modified Chaplygin Gas in Horava-Lifshitz Gravity
• Constraints on the dark matter sound speed from galactic scales: the cases of the Modified and Extended Chaplygin Gas
• Piston problem to the isentropic Euler equations for modified Chaplygin gas
• Single-field inflation à la generalized Chaplygin gas
• The van der Waals fluid and its role in cosmology
• FRW type of cosmology with a Chaplygin gas
• Discriminating among cosmological models by data-driven methods
• Constraining Modified Chaplygin gas parameters
• Constraining the Lattice Fluid Dark Energy from SNe Ia, BAO and OHD
• Addressing the $H_0$ tension through matter with pressure and no early dark energy
• Interacting Dark Energy and Its Implications for Unified Dark Sector