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Fig. 8

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Radio to X-rays spectrum of 1ES 1218+304 (starred symbols, data taken from Sato et al. 2008) together with the steady-state theoretical spectrum (solid line) for the parameters given in text. The contributions from the acceleration zone (dashed line) and from the radiation zone (dotted line) are also shown. The optical data can be attributed to the host galaxy of 1ES 1218+304 (Rüger et al. 2010), so are not included in the fit.

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