Mirage sources and large TeV halo-pulsar offsets: Exploring the parameter space

GeV gamma-ray emission is frequently observed both at large angular separation from pulsars and are not always centered around these pulsars. Using GPU-acceleration monte-carlo simulations, the authors provide a compelling explanation that the propogation of 100 GeV electrons that produce these gamma-rays in the turbulent interstellar magnetic field both leads to off-center peaks and wide separation, e.g., a gamma-ray mirage. These mirages can help constrain the properties of the interstellar magnetic field.