The Enveloping of a Density Singularity by Shock Generated by Strong Explosion
Abstract
Discovering of cosmological nature of Gamma-Ray Bursts (GRB) means that energy emitted in the GRB is much greater than energy from supernova explosion. Strong shock wave from such ``hypernova'' explosion could reach neighbouring stars or gas clouds and still stay strong. We use the Kompaneets shock front equation for analysis of ``hypernovae'' remnants shapes, which may correspond to the GRBs. Exact solution of Kompaneets equation for non-central explosion in a nonuniform medium with bi-power density coordinate dependence is obtained. The shape of the shock (in particular, for quadratic law of density decrease and constant on big distances) is analysed analitically. The effects of enveloping of the density singularity and self-intersection of the shock front beyond the singularity are obtained. The results compared with observational data for the features which regard as the hypernova remnant pretenders.
- Publication:
-
Astronomische Gesellschaft Meeting Abstracts
- Pub Date:
- 2001
- Bibcode:
- 2001AGM....18.P182K