SED of the eastern emission region e1. The red upper limits are derived in this work within a 2σ confidencelevel. Other data are taken from Abeysekara et al. (2018) directly. Radio to low-energy γ-ray photons are fitted with a synchrotron emission in a magnetic field (dashed line), and the GeV to TeV emission through IC scattering of the CMB (dot-dashed line). The solid line represents the sum of the synchrotron and IC emission.