Image Details
Caption: Figure 11.
2FLE and 4FGL best-fit spectral index value for the 2FLE sources associated with: BLL (light-blue squares, top left), FSRQ (red points, top right), BCUs & EGAL Other (yellow diamonds, bottom left), PSR & MSP (dark-blue triangles), and GAL Other (light-green pentagons) on the bottom right. EGAL Other and GAL Other contain the same source classes as reported in Figure 7. The dashed black line is the one-to-one line. The dotted black lines indicate the transition from a hard to soft spectrum (Γ = 2).
© 2026. The Author(s). Published by the American Astronomical Society.