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Fig. 6.
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Observed gamma-ray flux (10–1000 keV) versus X-ray flux (0.5–4 keV) for EP-discovered FXRTs, updated from Yadav et al. (2025). LXT 240402a and EP250207b are highlighted. Dashed lines represent power-law spectra with photon indices Γ = 0.5, 1.0, and 1.5.
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