Titlebook: Radiative Processes in High Energy Astrophysics; Gabriele Ghisellini Book 2013 Springer International Publishing Switzerland 2013 AGN Emis

悶熱

四牛在彎曲

Beaming, of light is moving fast with respect to an observer. All the discussion is very informal and as simple as possible. We will explain the origin of light aberration, and why the received luminosity can be very different from the luminosity as measured in a frame comoving with the source.