GRB 201015A and soft low-luminosity Gamma-Ray Bursts, and the GOTO telescope
Miti Patel (Leicester Uk)
Tuesday 13/06/2023 @ 14:00, Sala IV piano Battiferro - Presenza + remoto
A gamma-ray burst (GRB) is a highly energetic jet, but GRB 201015A is lower luminosity than the majority of the population, and it has a softer spectrum. This GRB does still hold up against the Amati relation describing the correlation between the intrinsic spectral peak energy and the isotropic energy. We have compared this GRB to others that share similar properties. We also made use of the afterglow observations to study the closure relations describing the synchrotron emission. The X-ray data shows a surprising late shallowing, which we explain with energy injection. GOTO is a ground-based, wide-field, optical telescope, designed for rapid follow up of GRB events to locate their position and provide afterglow observations which are crucial for the study of GRBs. It provides good coverage of the sky with a node in La Palma, and a node in Australia. The telescope consists of 4 mounts, each with a 40 square degree field-of-view, and can reach 20th magnitude in 3 minutes. We hope this will help localize GRBs during the O4 run of the LVK collaboration.