Image Details
Caption: Figure 14.
Energy spectra of Mrk 421 during the 23 outbursts; simultaneous SEDs from Fermi-LAT are included. The first nine panels are relative to outbursts O1 to O9 based on joint observational data from LHAASO-WCDA, LHAASO-KM2A, and Fermi-LAT. The solid gray, blue, and green squares represent the observational results from Fermi-LAT and LHAASO (WCDA and KM2A), with arrows indicating the upper limits of flux. The solid line in the figure represents the fitting result of the log-parabola (LP) model, the dashed line represents the fitting result of the ECPL model, and the dotted line represents the fitting result of the PSEC model.
© 2026. The Author(s). Published by the American Astronomical Society.