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Fig. 9.


Comparison between acceleration timescale (solid black line with acceleration efficiency ηacc  =  1) and different cooling timescales (tesc, tpsync, t) for the hadronic (left panel) and lepto-hadronic (right panel) scenarios of 13 June 2016. Also shown is the energy at which the proton gyro-radius becomes equal to the radius of the emission region (dot-dashed red line).

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