Image Details
Caption: Figure 9.
Histograms of photon index distribution for the flare, preflare, and postflare phases (total-flare sample). The red, green, and blue solid lines represent the data for the flare, preflare, and postflare phases, respectively, and the dashed lines are the Gaussian fits.
© 2026. The Author(s). Published by the American Astronomical Society.