Fig. A.1.
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M82 spectral model. Dashed line: 4FGL spectrum with 1σ uncertainties (gray band). Data points: SED points derived assuming 4FGL spectrum, with 1σ uncertainties. Dotted line: 4FGL spectrum plus the low-energy PL component. Downward triangles: low-energy upper limits from the PSF3 analysis. Upward triangles: low-energy lower bounds, flux values from 4FGL model.
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