Modified Chaplygin Gas Cosmology

Abstract

Modified Chaplygin gas as an exotic fluid has been introduced in [34]. Essential features of the modified Chaplygin gas as a cosmological model are discussed. Observational constraints on the parameters of the model have been included. The relationship between the modified Chaplygin gas and a homogeneous minimally coupled scalar field are reevaluated by constructing its self-interacting potential. In addition, we study the role of the tachyonic field in the modified Chaplygin gas cosmological model and the mapping between scalar field and tachyonic field is also considered.

11 pages

References in corpus (4)

• Constraints on modified Chaplygin gas from recent observations and a comparison of its status with other models
• Modified Chaplygin Gas as a Unified Dark Matter and Dark Energy Model and Cosmic Constraints
• Combined constraints on modified Chaplygin gas model from cosmological observed data: Markov Chain Monte Carlo approach
• Ruling out the Modified Chaplygin Gas Cosmologies