Luigi Piro

TL;DR: In this paper, the spectral and energy properties of 12 gamma-ray bursts with redshift estimates were investigated and a positive correlation between the estimated total (isotropic) energies in the 1-10 000 keV energy range (Erad) and redshifts z was found.

TL;DR: The detection of X-ray emission at a location coincident with the kilonova transient provides the missing observational link between short γ-ray bursts and gravitational waves from neutron-star mergers, and gives independent confirmation of the collimated nature of the γ,ray-burst emission.

TL;DR: The Advanced Telescope for High Energy Astrophysics (Athena+) mission as discussed by the authors provides the necessary performance (e.g., angular resolution, spectral resolution, survey grasp) to address these questions and revolutionize our understanding of the Hot and Energetic Universe.

TL;DR: In this paper, a broad-band study of GW170817 from radio to hard X-rays, including NuSTAR and Chandra observations up to 165 d after the merger, and a multimessenger analysis including LIGO constraints is presented, providing the first detailed comparison between non-trivial cocoon and jet models.

TL;DR: In this paper, the spectral contributions of Compton reflection and iron line fluorescence from circumnuclear gas were analyzed on a broad band basis (0.1{200 keV) for nine bright Seyfert 1 and NELG type galaxies, observed with BeppoSAX.