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GRB 130427A: a Nearby Ordinary Monster
A. Maselli, A. Melandri, L. Nava +63
Long-duration Gamma-Ray Bursts (GRBs) are an extremely rare outcome of the collapse of massive stars, and are typically found in the distant Universe. Because of its intrinsic lumi…
A Complete Sample of Long Bright Swift GRBs
R. Salvaterra, S. Campana, S. Covino +7
Starting from the Swift sample we define a complete sub-sample of 58 bright long Gamma Ray Bursts (GRB), 55 of them (95%) with a redshift determination, in order to characterize th…
On the relation between dynamics and geometry in GRBs
G. Ghirlanda, S. Campana, S. Covino +7
We estimate the initial bulk Lorentz factors Gamma_0 for GRBs that show the onset of the afterglow in their optical light curves. We find that Gamma_0 is strongly correlated with b…
Radio afterglows of a complete sample of bright Swift GRBs: predictions from present days to the SKA era
G. Ghirlanda, R. Salvaterra, D. Burlon +13
Radio observations of Gamma Ray Bursts afterglows are fundamental in providing insights into their physics and environment, and in constraining the true energetics of these sources…
Dust extinction for an unbiased sample of GRB afterglows
S. Covino, A. Melandri, R. Salvaterra +15
In this paper we compute rest-frame extinctions for the afterglows of a sample of gamma-ray bursts complete in redshift. The selection criteria of the sample are based on observati…