Multiwavelength SED of Cygnus X-3 during the main γ-ray events (non-simultaneous data) and the leptonic model “A” (see main text). Blue circles: X-ray average “hypersoft” spectrum (Koljonen et al. 2010), RXTE-PCA and RXTE-HEXTE data (~3 to ~150 keV); red circles: AGILE-GRID energy spectrum (50 MeV to 3 GeV) of the main γ-ray episodes (Figs. A.1 and A.2); magenta arrows: MAGIC differential flux upper limits (95% C.L.), 199−3155 GeV, related to soft spectral state (Aleksić et al. 2010). Spectral components of the model are the BB emission from the disk (blue short-dashed line), IC scattering of the soft photons from the accretion disk (green solid line), and IC scattering of the soft stellar photons (red solid line). The global SED model curve is indicated by a black solid line.