GRBs’ physical properties

Our studies address the internal properties of the GRBs from the central engine to the optical transients. We are dealing with studying the statistical properties of all types of the GRBs and try tq find observable differences. According to the most widely accepted view there are two basic types but we found strong evidences for an intermediate one.

The most widely accepted model of the long GRBs is the fireball model.

 GRBs’ angular distribution

We did several investigations in studying the angular distribution of  GRBs on the sky We investigated. the short, intermediate GRBs, separately.

We demonstrated that the short and intermediate bursts distributes on the sky non-randomly while that of the long ones is random