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Gamma-Ray Bursts and Afterglow Polarisation
Stefano Covino, Elena Rossi, Davide Lazzati +2
Polarimetry of Gamma-Ray Burst (GRB) afterglows in the last few years has been considered one of the most effective tool to probe the geometry, energetic, dynamics and the environm…
The X-ray afterglow of GRB030329 at early and late times
A. Tiengo, S. Mereghetti, G. Ghisellini +3
Thanks to its extraordinary brightness, the X-ray afterglow of GRB030329 could be studied by XMM-Newton up to two months after the prompt Gamma-ray emission. We present the results…
Heating and deceleration of GRB fireballs by neutron decay
Elena M. Rossi, Andrei M. Beloborodov, Martin J. Rees
Fireballs with high energy per baryon rest mass (> 400) contain a relatively slow neutron component. We show here that in this situation the thermal history of fireballs is very di…
On the jet structure and magnetic field configuration of GRB 020813
D. Lazzati, S. Covino, J. Gorosabel +32
The polarization curve of GRB 020813 is discussed and compared to different models for the structure, evolution and magnetisation properties of the jet and the interstellar medium…
The polarisation of afterglow emission reveals GRB jet structure
Elena M. Rossi, D. Lazzati, Jay D. Salmonson +1
We numerically compute light and polarisation curves of gamma-ray burst afterglows for various configurations of the jet luminosity structure and for different dynamical evolutions…