II Weekly Seminars for march 2013

 Monday March 25 , 2013 - 4,00 pm
Aula  Conversi (Physics Dept., Old Building - 1st Floor)
 ICRA Seminar


Speaker:  Prof. Prof. Lorenzo AMATI

Institution: INAF - IASF Bologna


Title:  GRB physics and cosmology with the Ep - Intensity correlation.  

Abstract:  The correlation between the photon energy at which the nuFnu spectrum peaks (hence called "peak energy", Ep) and the isotropic-equivalent radiated energy (Eiso) or luminosity (Liso), is one of the most intriguing and debated observational evidences in Gamma-Ray Bursts (GRB) astrophysics.  I present the updated Ep,i - Eiso (Liso) correlation and discuss its main implications for the physics and geometry of the GRB emission, the identification and origin of different sub-classes of GRBs (short/long, X-Ray Flashes, sub-energetic events) and the possible use of GRBs as cosmological probes. I also discuss the possible impact of selection / instrumental effects on the correlation and the future perspectives with present and next generation GRB experiments. 

N.B. - In the following link, you can find the official announcement on the Physics Department website:
La Segreteria ICRA
c/o Dipartimento di Fisica
Sapienza Università di Roma
P.le A. Moro, 5
I - 00185 ROMA, Italy
tel.: +39 06 4991 4 254
fax: +39 06 4454992
email: segreteria@icra.it