Gerardo Urrutia

collaborators

2 papers

astro-ph.HE2020

What determines the structure of short gamma-ray burst jets?

Gerardo Urrutia, Fabio De Colle, Ariadna Murguia-Berthier +1

The discovery of GRB 170817A, the first unambiguous off-axis short gamma-ray burst arising from a neutron star merger, has challenged our understanding of the angular structure of…

astro-ph.HE2019

Numerical Simulations of an Initially Top-Hat Jet and the Afterglow of GW170817/GRB170817A

Ramandeep Gill, Jonathan Granot, Fabio De Colle +1

The afterglow of GRB170817A/GW170817 was very unusual, slowly rising as $F_{ν} \propto t_{obs}^{0.8} ν^{- 0.6}$ , peaking at $t_{obs, pk} \sim 150$ days, and sharply d…