Simulated and observed X-ray and γ-ray light curves of η Car. The black and purple lines and bins show the predicted inverse-Compton and π⁰-decay light-curves. The green and red points show the observed Fermi-LAT light curves at low (0.3–10 GeV) and high (10–300 GeV) energies. The dim grey light curves show the observed (continuous) and predicted (dash, without obscuration) thermal X-ray light curves. Error bars are 1σ. Phases 1 and 2 correspond to first (2009) and second (2014) periastron observed during Fermi-LAT operation epoch, respectively (from Balbo & Walter 2017).