Gamma Ray Bursts and Afterglow Re '

  title={Gamma Ray Bursts and Afterglow Re '},
  author={Em Sari},
The origin of GRBs have been a mystery for almost 30 years. Their sources emit a huge amount of energy on short time scales and the process involves extreme relativistic motion with bulk Lorentz factor of at least a few hundred. In the last two years, "afterglow", emission in X-ray, optical, IR, and radio was detected. The afterglow can be measured up to months and even years after the few seconds GRB. We review the theory for the 7-rays emission and the afterglow and show that it is strongly… CONTINUE READING