Abstract Details

Name: Darshan Singh
Affiliation: GD Goenka University Gurugram,Sohna Gurgaon Road Sohna, Haryana – India
Conference ID: ASI2021_401
Title : Cosmological Analysis of Long Gamma Ray Bursts using calibrated Ep,i–Eiso correlation.
Authors and Co-Authors : Author1 - Meghendra Singh(Delhi Metro Rail Corporation Limited New Delhi, 110001.), Co-Author1-Darshan Singh(G D Goenka University, Gurugram, Haryana, 122103.)Co-Author2-Shashikant Gupta(G D Goenka University, Gurugram, Haryana, 122103.)
Abstract Type : Poster
Abstract Category : General Relativity and Cosmology
Abstract : Gamma Ray Bursts (GRBs) are powerful astronomical transient events; the high luminosity in the prompt emission makes them detectable up to very high redshift. Thus, GRBs can provide vital information about the high redshift universe. Correlations among various GRB parameters are required to calibrate the GRBs for cosmological applications. Amati relation is one such correlation between the isotropic equivalent energy (Eiso) and the peak energy (EPeak) of Long GRBs. Since GRBs span a long range of redshifts, it is important to know if the GRB properties and the Amati relation depend on the redshift. The Eiso and EPeak of 162 Long GRBs are available in the literature. We calculate the Amati parameters for the data and further divide the data into different redshift bins. Our results show that the Amati parameters and hence the properties of Long GRBs evolve with redshift.