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Fig. 2.

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Example double smoothly broken power law jet apparent structure model and induced L and Ep probability distributions. Panels a.1 and a.2 show the apparent jet structure functions and (solid red and green line, respectively) adopting the parametrisation defined in Eq. (16) and using the parameter values reported in the middle panel. Panel a.0 shows the induced Ep(L) relation due to the structure (purple line). In panels a.1 and a.2, the dotted black lines show the transition angles θc and θw. The dashed lines demonstrate the analytical trends discussed in the text. Panel b.1 shows the induced luminosity function ϕ(L) = dP/dlnL = LP(L, Ep) dEp (red line), with dashed lines demonstrating approximate analytical trends (significant departures are due to the core dispersion), and with the core luminosity distribution shown with a dashed dark grey line, centred at Lc and with its integral normalised to 1 − cos θc. Panel b.2 is the analogue of b.1, but showing the dP/dlnEp probability distribution (green line).

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