742 citations · 5.1k across the 85 of their papers we have counts for
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Gamma-ray burst detection with the AGILE mini-calorimeter
M. Marisaldi, C. Labanti, F. Fuschino +70
The Mini-Calorimeter (MCAL) instrument on-board the AGILE satellite is a non-imaging gamma-ray scintillation detector sensitive in the 300keV-100MeV energy range with a total on-ax…
Delayed X-ray emission from fallback in compact-object mergers
Elena M. Rossi, Mitchell C. Begelman
When double neutron star or neutron star-black hole binaries merge, the final remnant may comprise a central solar-mass black hole surrounded by a 0.01-0.1 solar masses torus. The…
Microphysical dissipation, turbulence and magnetic fields in hyper-accreting discs
Elena M. Rossi, Philip J. Armitage, Kristen Menou
Hyper-accreting discs occur in compact-object mergers and collapsars, and may power gamma-ray bursts (GRBs). We calculate the microscopic viscosity and resistivity of plasma in the…
Science with the new generation high energy gamma- ray experiments
M. Alvarez, D. D'Armiento, G. Agnetta +197
This Conference is the fifth of a series of Workshops on High Energy Gamma- ray Experiments, following the Conferences held in Perugia 2003, Bari 2004, Cividale del Friuli 2005, El…
"Orphan" afterglows in the Universal Structured Jet Model for gamma-ray bursts
Elena M. Rossi, Rosalba Perna, Frédéric Daigne
The paucity of reliable achromatic breaks in Gamma-Ray Burst afterglow light curves motivates independent measurements of the jet aperture. Serendipitous searches of afterglows, es…
Quasistars: Accreting black holes inside massive envelopes
Mitchell C. Begelman, Elena M. Rossi, Philip J. Armitage
We study the structure and evolution of "quasistars", accreting black holes embedded within massive hydrostatic gaseous envelopes. These configurations may model the early growth o…
The redshift distribution of SWIFT Gamma-Ray Bursts: evidence for evolution
F. Daigne, E. M. Rossi, R. Mochkovitch
We predict the redshift distribution of long Gamma-Ray Bursts (GRBs) with Monte Carlo simulations. Our improved analysis constrains free parameters with three kinds of observation:…
Neutron-loaded outflows in gamma-ray bursts
Elena M. Rossi, Andrei M. Beloborodov, Martin J. Rees
Relativistic neutron-loaded outflows in gamma-ray bursts are studied at their early stages, before deceleration by a surrounding medium. The outflow has four components: radiation,…
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…
Compton drag as a mechanism for very high linear polarization in Gamma-Ray Bursts
Davide Lazzati, Elena Rossi, Gabriele Ghisellini +1
The recent claim by Coburn & Boggs to have detected a very high degree of linear polarization in the prompt emission of GRB 021206 has stimulated interest in how much polarization…
Polarization curves of GRB afterglows predicted by the universal jet structure
E. Rossi, D. Lazzati, J. D. Salmonson +1
It has been recently proposed that current burst and afterglow observations can be accounted for by a top hat jet structure as well as by a more universal structured outflow, in wh…