103 citations · 226 across the 6 of their papers we have counts for
6 papers
Prolonged activity of the central engine of Gamma Ray Bursts
G. Ghisellini, M. Nardini, G. Ghirlanda
We call "prompt" emission of Gamma Ray Bursts (GRBs) the erratic and violent phase of hard X-ray and soft gamma-ray emission, usually lasting for tens of seconds in long GRBs. Howe…
Testing an unifying view of Gamma Ray Burst afterglows
M. Nardini, G. Ghisellini, G. Ghirlanda +1
Four years after the launch the Swift satellite the nature of the Gamma Ray Bursts (GRBs) broadband afterglow behaviour is still an open issue ad the standard external shock fireba…
The puzzling clustering and bimodality of long GRBs optical afterglow luminosities
M. Nardini, G. Ghisellini, G. Ghirlanda
The study of the rest frame properties of long Gamma-Ray bursts (GRBs) afterglows is a fundamental aspect for a better understanding of the nature of these powerful explosions. The…
A unifying view of Gamma Ray Burst Afterglows
G. Ghisellini, M. Nardini, G. Ghirlanda +1
We selected a sample of 33 Gamma Ray Bursts (GRBs) detected by Swift, with known redshift and optical extinction at the host frame. For these, we constructed the de-absorbed and K-…
Precursors in Swift Gamma Ray Bursts with redshift
D. Burlon, G. Ghirlanda, G. Ghisellini +4
We study a sample of Gamma-Ray Bursts detected by the Swift satellite with known redshift which show a precursor in the Swift-BAT light curve. We analyze the spectra of the precurs…
Optical afterglow luminosities in the Swift epoch: confirming clustering and bimodality
M. Nardini, G. Ghisellini, G. Ghirlanda
We show that Gamma Ray Bursts (GRBs) of known redshift and rest frame optical extinction detected by the Swift satellite fully confirm earlier results concerning the distribution o…