An extended analysis for a generalized Chaplygin gas model

Abstract In this work, we have extended the analysis on generalized Chaplygin gas (GCG) model as unification of dark energy and matter. Specifically, shown that our consideration known new (NGCG) model, admits a scalar field description, which means there exist minimally coupled for given potential where equation state is NGCG. With use later property can construct slow-roll parameters derive corresponding values spectral indices tensor to perturbation density perturbations. We also studied growth rate matter perturbations in NGCG scenario. Finally, viability second law thermodynamics by assuming dynamical apparent horizon universe endowed with Hawking temperature Bekenstein entropy.