628 citations · 8.3k across the 153 of their papers we have counts for
9 papers · 1 filter
Thick fireballs and the steep decay in the early X-ray afterglow of gamma-ray bursts
Davide Lazzati, Mitchell C. Begelman
We study the early afterglows of gamma-ray bursts produced by geometrically thick fireballs, following the development of the external shock as energy is continually supplied to th…
A Gamma-Ray Burst Mission to Investigate the Properties of Dark Energy
D. Q. Lamb, G. R. Ricker, D. Lazzati +26
[Abridged] Very recently, relations between the peak energy of Gamma-Ray Burst burst spectra, the isotropic-equivalent energy of the burst, and the radiated energy of the burst hav…
Extinction properties of the X-ray bright/optically faint afterglow of GRB 020405
G. Stratta, R. Perna, D. Lazzati +3
We present an optical-to-X-ray spectral analysis of the afterglow of GRB 020405. The optical spectral energy distribution not corrected for the extragalactic extinction is signific…
GRB Progenitors and Environment
Davide Lazzati
The study and knowledge of the environment of Gamma-Ray Bursts is of great interest from many points of view. For high redshift (z>0.5) events, the structure of the ambient medium…
Cosmology with Gamma Ray Bursts
G. Ghisellini, G. Ghirlanda, C. Firmani +3
Apparently, Gamma-Ray Bursts (GRBs) are all but standard candles. Their emission is collimated into a cone and the received flux depends on the cone aperture angle. Fortunately we…
The updated E_peak - E_gamma correlation in GRBs
G. Ghirlanda, G. Ghisellini, D. Lazzati +1
The recently discovered correlation between the rest frame GRB peak spectral energy and the collimation corrected energy in long GRBs is potentially very impor…