The correlation between peak photon energy and radiated energy in Gamma--Ray Bursts
Abstract
The correlation between the photon energy at which the redshift-corrected nuFnu spectrum peaks (hereafter called "peak energy", Ep,i) and the isotropic equivalent radiated energy (Eiso) is one of the most intriguing and debated pieces of observational evidence in Gamma-Ray Burst (GRB) astrophysics. I present the updated Ep,i - Eiso correlation and discuss its main implications for the physics and the geometry of the GRB emission, with particular emphasis on the properties of Swift GRBs and the location in the Ep,i - Eiso plane of sub-energetic long GRBs, GRB/SN events, short GRBs and the recently discovered sub-class of long GRBs without association with a hypernova.
- Publication:
-
Journal of Korean Physical Society
- Pub Date:
- May 2010
- DOI:
- 10.3938/jkps.56.1603
- Bibcode:
- 2010JKPS...56.1603A