Cosmological constrains on new generalized Chaplygin gas model

Understand

We use different combinations of data samples to investigate the new generalized Chaplygin gas (NGCG) model in the context of dark energy (DE) cosmology.

• Using the available cosmological data, we put constraints on the the free parameters of NGCG model based on the statistical Markov chain Monte Carlo method.
• We then find the best fit values of cosmological parameters and those confidence regions in NGCG cosmology.
• Our result for the matter density parameter calculated in NGCG model is in excellent agreement with that of the standard CDM cosmology.