Davide LAZZATI

The Lazzati Group performs research in theoretical astrophysics. Our research focuses on Gamma-Ray Bursts and on Dust Nucleation.

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  Short duration GRBs from collapsar

  The NCSU GRB group suggests that a subclass of the short-duration GRB population may originate from collapsar explosions seen at wide angles. If confirmed by observations, this prediction would be a paradigm shift, breaking the old view according to which long GRBs are associated to massive stars and short GRBs are associated to compact object mergers. arXiv
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  NCSU 3D GRB jet in Nature movie

  A 3D animation of GRB explosion by NCSU GRB group featured on Nature video. See full film on the Nature Website
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  GRB Jet Photospheres

  Numerical simulations from the NCSU GRB group and collaborators show that the jets of long duration GRBs have very bright photospheres. This is a result of the interaction of the jet with the progenitor star. The radiative efficiency of the photosphere can be more than 50 per cent. The typical photon energy predicted from the simulations is fully consistent with the one observed in GRB light curves (ADS) (HR manuscript)