Spectral energy distribution of RCW 86 for a hadronic scenario. The solid blue lines denote the total broadband emission from the one-zone modeling discussed in Sect. 4 The dotted lines show the IC-contributions and the dashed line is that of the π⁰ -decay contribution. The black dashed dotted line shows the results for a proton spectrum with Γ_p = 2. The radio data points are from Molonglo at 408 MHz and Parkes at 5 GHz (Caswell et al. 1975; Lemoine-Goumard et al. 2012). X-ray data are from ASCA and RXTE from Lemoine-Goumard et al. (2012). The Fermi-LAT data points are taken from Yuan et al. (2014) and the H.E.S.S. data are from this analysis.