Fig. 4: Comparison of light curve.
From: Probable evidence for a transient mega-electron volt emission line in the GRB 221023A

Comparison of the light curves of GRB 221023A (red) and GRB 221009A (blue) in the energy range of 0.2–40 MeV, with the corresponding shaded colors regions showing the time intervals where narrow emission features were detected. The trigger time of GRB 221023A was shifted backward by 210 s. Source data are provided as a Source Data file.