Photon index (Γ_X)
how some GRBs have more or less bright X-ray flares
Technical definition
A measure of the energy spectrum of high-energy radiation, quantifying the rate at which the energy falls off with increasing frequency or wavelength.
how some GRBs have more or less bright X-ray flares
A measure of the energy spectrum of high-energy radiation, quantifying the rate at which the energy falls off with increasing frequency or wavelength.