Abstract Details
| Name: Sanjeeva Rao Prattipati Affiliation: Indian Institute of Technology Jodhpur Conference ID: ASI2025_128 Title : sGRBs similar to GW/sGRB170817A in γ-ray emission Authors and Co-Authors : Sanjeeva Rao Prattipati, Neha Yadav, Reetanjali Moharana Abstract Type : Poster Abstract Category : High Energy Phenomena, Fundamental Physics and Astronomy Abstract : The rate of gravitational waves from neutron star-neutron star mergers detected by the Laser Interferometer Gravitational-Wave Observatory (LIGO; B. P. Abbott et al. 2017) indicates the existence of even more short gamma-ray bursts (sGRBs) similar to GW/sGRB 170817A among the total gamma-ray bursts (GRBs) recorded by satellite detectors such as BATSE, Fermi-gamma-ray burst monitor(Fermi-GBM), and Swift. We investigated sGRBs in the Fermi-GBM database based on the $\gamma$-ray emission characteristics of sGRB170817A, the first GRB with an electromagnetic counterpart detected by LIGO. We adopted a multifaceted approach to identify analogous sGRBs, which involved computing the Hardness Ratios HR1 and HR2, followed by clustering via the K-means algorithm. This process resulted in identifying over 40 sGRBs like (A. von Kienlin et al. 2019), including the reference sGRB170817A, after which we analyzed the spectrum features using GBM techniques. Our study shows the presence of few such events in Fermi-GBM data. |