APO1 - X-Ray Spectroscopy of High Energy Sources with the XMM-Newton Satellite |
Speaker_ |
Amati, Lorenzo |
Talk _ |
The Ep.i - Eiso correlation in Gamma-Ray Bursts |
Abstract _ |
The correlation between the cosmological rest-frame photon frequency at which the nuFnu spectrum peaks (Ep,i) and the total isotropic-equivalent radiated energy (Eiso) is one of the strongest and most intriguing recent observational evidences concenring cosmological Gamma-Ray Bursts (GRBs). I briefly review the observational scenario and the main implications of this correlation, which include the physics of GRB prompt emission, the jet structure and geometry, GRB/XRF/SN unification models, the comprehension of the different origin of short and long GRBs, the nature of peculiar events like sub-energetic GRBs. |