Density evolution in the new modified Chaplygin gas model

Surajit Chattopadhyay1 and Ujjal Debnath2

Abstract

In this paper, we have considered a new modified Chaplygin gas (NMCG) model which interpolates between radiation at an early stage and LCDM at a late stage. This model is regarded a unification of dark energy and dark matter (with a general form of matter). We have derived the density parameters from the equation of motion for interaction between dark energy and dark matter. Also, we have studied the evolution of various components of the density parameters.

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