GRB 221009A: the B.O.A.T Burst that Shines in Gamma Rays

M. Axelsson, M. Ajello, M. Arimoto +151

We present a complete analysis of Fermi Large Area Telescope (LAT) data of GRB 221009A, the brightest Gamma-Ray Burst (GRB) ever detected. The burst emission above 30 MeV detected…