Synchrotron (dot-dashed line) and SSC (dashed line) spectra in the ES scenario, for a burst with parameters p = 2.05, E₅₂ = 0.35, z = 0.1, n₁ = 5, ν_m = 0.15 keV,  mJy, and t_s = 2.5. The solid line is the sum of the synchrotron and SSC contributions. For this choice of parameters, one has an SSC peak around ~1 GeV. The dot-dot-dot-dashed line represents the Fermi/LAT sensitivity for an integration time of 10 s (see Galli & Piro 2007). The green solid vertical line marks the observed flux level at 1 GeV, as reported by Abdo et al. (2010) for interval c. See the electronic version of this paper for colors.