High energy emission comes from regions with extreme high temperature or relativistic velocity Gamma X-rays Ultra-Visible Infrared Micro- Radio Rays violet Light wave 10 billion K 100 million K 10.000K 100K Temperature 0.0005 0.1 0.5 50 0.5 Wavelength nanometer nanometer micrometers micrometers centimeters 6/4/2022• High energy emission comes from regions with extreme high temperature or relativistic velocity 6/4/2022