Morphology of Gamma-ray Halos around Middle-aged Pulsars: Influence of the Pulsar Proper Motion
Morphology of Gamma-ray Halos around Middle-aged Pulsars: Influence of the Pulsar Proper Motion
Recently, gamma-ray halos of a few degree extension have been detected around two middle-aged pulsars, namely, Geminga and PSR B0656+14, by the High Altitude Water Cherenkov observatory (HAWC). The gamma-ray radiation arise from relativistic electrons that escape the pulsar wind nebula and diffuse in the surrounding medium. The diffusion coefficient …