MODELING THE BROADBAND EMISSION OF GRB 090902B
MODELING THE BROADBAND EMISSION OF GRB 090902B
GRB 090902B, detected by Fermi Large Array Telescope (Fermi/LAT), shows extend high-energy emission (>100 MeV) up to 10^3 s after the burst, which decays with time in a power-law as t^{-1.5}. It has been also observed by several follow-up low-energy instruments, including an early optical detection around 5000 s after …