The Pantheon Sample analysis of cosmological constraints under new models
First author: Peifeng Peng
In this project, the cosmological parameters are determined by applying six cosmological models to fit the magnitude-redshift relation of the Pantheon Sample consisting of 1048 Type Ia supernovae (SNe Ia) in the range of $0.01 < z < 2.26$. Apart from the well-known flat $\Lambda$CDM model as well as other models that have been broadly studied, this project includes two new models, which are the $\textit{o}\textit{w}$CDM model and the $\textit{o}\textit{w}0\textit{w}a$CDM model, to fully evaluate the correlations between the cosmological parameters by performing the MCMC algorithm and to explore the geometry and mass content of the Universe.