Physics of Gamma-Ray Bursts Prompt Emission

Figure 11

(a) Gamma-ray light curve (black) and optical data from “Pi in the sky” (blue) and “Tortora” (red) of GRB080319B show how the optical component traces the -ray component. Figure taken from Racusin et al. [116]. (b) Gamma-ray and optical light curve of GRB990123 show that the optical light curve lags behind the -rays. Figure taken from Akerlof et al. [117].

(a)

(b)