Cosmology with a Variable Chaplygin Gas

Abstract

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.

arXiv comment8 pages, 3 figures, LaTeX2e, Accepted for publication in Phys. Lett. B

References in corpus (54)

• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• The Cosmological Constant and Dark Energy
• Type Ia Supernova Discoveries at z>1 From the Hubble Space Telescope: Evidence for Past Deceleration and Constraints on Dark Energy Evolution
• Cosmological parameters from SDSS and WMAP
• A Phantom Menace? Cosmological consequences of a dark energy component with super-negative equation of state
• Final Results from the Hubble Space Telescope Key Project to Measure the Hubble Constant
• Cosmological Constant - the Weight of the Vacuum
• The Case for a Positive Cosmological Lambda-term
• Cosmology and the Fate of Dilatation Symmetry
• Quintessence, Cosmic Coincidence, and the Cosmological Constant
• An alternative to quintessence
• Generalized Chaplygin Gas, Accelerated Expansion and Dark Energy-Matter Unification
• Coupled Quintessence
• Cosmological Tracking Solutions
• Rolling Tachyon
• Tachyon Matter
• Accelerated expansion of the universe driven by tachyonic matter
• Unification of Dark Matter and Dark Energy: the Inhomogeneous Chaplygin Gas
• Interacting Quintessence
• Cosmology with tachyon field as dark energy
• Is there Supernova Evidence for Dark Energy Metamorphosis ?
• Can the clustered dark matter and the smooth dark energy arise from the same scalar field ?
• The State of the Dark Energy Equation of State
• Role of Modified Chaplygin Gas in Accelerated Universe
• The end of unified dark matter?
• Uncorrelated Estimates of Dark Energy Evolution
• Extended tachyon field, Chaplygin gas and solvable k-essence cosmologies
• Distances and ages of NGC 6397, NGC 6752 and 47 Tuc
• Generalized Chaplygin gas and CMBR constraints
• WMAP Constraints on the Generalized Chaplygin Gas Model
• Constraints on the generalized Chaplygin gas from supernovae observations
• Cosmological consequences of a Chaplygin gas dark energy
• Are Chaplygin gases serious contenders to the dark energy throne?
• Probing the dark side: Constraints on the dark energy equation of state from CMB, large scale structure and Type Ia supernovae
• A new cosmological tracker solution for Quintessence
• Generalized Chaplygin gas as a unified scenario of dark matter/energy: observational constraints
• Testing the Cosmic Coincidence Problem and the Nature of Dark Energy
• Scalar Field as Dark Matter in the Universe
• Scaling Cosmology
• Parametrization of Quintessence and Its Potential
• Unified dark energy models : a phenomenological approach
• SCALAR FIELD COSMOLOGIES WITH PERFECT FLUID IN ROBERTSON-WALKER METRIC
• Generalized Chaplygin Gas Models tested with SNIa
• Cosmon dark matter?
• Generalized Chaplygin Gas in a modified gravity approach
• Condensate cosmology -- dark energy from dark matter
• Large-scale inhomogeneities in modified Chaplygin gas cosmologies
• Supernova constraints on alternative models to dark energy
• Unified Model for Dark Energy
• Observational constraints on generalized Chaplygin gas model
• Unified Models of Inflation and Quintessence
• On the age and mass function of the globular cluster M4: a different interpretation of recent deep HST observations

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• Interacting Modified Variable Chaplygin Gas in Non-flat Universe
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• The spherical collapse model and cluster formation beyond the $\Lambda$ cosmology: Indications for a clustered dark energy?
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• Observational constraints of a new unified dark fluid and the $H_0$ tension
• Observational constraints on a unified dark matter and dark energy model based on generalized Chaplygin gas
• Extending the generalized Chaplygin gas model by using geometrothermodynamics
• Thermodynamics of the Variable Modified Chaplygin gas
• Observational constraints on new generalized Chaplygin gas model
• Dynamics and constraints of the Unified Dark Matter flat cosmologies
• Brans-Dicke Cosmology in 4D from scalar-vacuum in 5D
• A New Variable Modified Chaplygin Gas Model Interacting with Scalar Field
• Viability of Variable Generalised Chaplygin gas - a thermodynamical approach
• Spherically symmetric inhomogeneous model with Chaplygin gas
• Density Evolution in the New Modified Chaplygin Gas Model
• Phase Space Analysis and Thermodynamics of Interacting Umami Chaplygin gas in FRW Universe
• On sign-changeable interaction in FLRW cosmology
• Roles of Modified Chaplygin-Jacobi and Chaplygin-Abel Gases in FRW Universe
• Crossing the Phantom divide line in the Chaplygin gas model
• Interacting entropy-corrected holographic Chaplygin gas model
• Modified Cosmic Chaplygin AdS Black Hole
• Gravitational Collapse in Higher Dimensional Husain Space-Time
• Limits from Weak Gravity Conjecture on Dark Energy Models
• Thermodynamical behaviour of the Variable Chaplygin gas
• Interaction between phantom field and modified Chaplygin gas
• Simplified Quartessence Cosmology
• Quintessential Phenomena in Higher Dimensional Space Time
• FRW type of cosmology with a Chaplygin gas
• Evolution of FRW universe in variable modified Chaplygin gas model
• Effects of particle creation rate in two-fluid interacting cosmologies
• Friedmann-Robertson-Walker Models with Late-Time Acceleration
• New holographic Chaplygin gas model of dark energy
• Interacting Chaplygin gas revisited
• Variable Chaplygin Gas: Constraints from Supernovae, GRB and Gravitational Wave Merger Events
• Sound Speed in Extended Chaplygin Fluid
• Variable Modified Chaplygin Gas in Anisotropic Universe with Kaluza-Klein Metric
• The nature of cosmological singularities in isotropic universes and braneworlds
• Role of Chameleon Field in presence of Variable Modified Chaplygin gas in Brans-Dicke Theory
• Late time attractors of some varying Chaplygin gas cosmological models
• Observational Constraints on Chaplygin Gas Models in Non-Minimally Coupled Power Law $f(Q)$ Gravity with Quasars
• Hamilton-Jacobi formalism for Generalized Chaplygin Gas models
• Cosmological bounds on dark matter annihilation using dark ages 21-cm signal
• Background dynamics and observational constraints of flat and non-flat $\Lambda (t)$CDM models from $H(z)$ and DESI DR2 BAO measurements
• Unifying the Dark Sector with the New Generalized Chaplygin Gas: Observational Constraints