IZZO, LUCALUCAIZZODELLA VALLE, MassimoMassimoDELLA VALLEAMATI, LORENZOLORENZOAMATI2020-04-242020-04-2420151743-9213http://hdl.handle.net/20.500.12386/24236We discuss the lack of a clear jet-break in the optical and X-ray afterglow light curve of GRB 130427A, which suggests that a very large isotropic energy is emitted in this burst.STAMPAenConference poster10.1017/S1743921315002586https://www.cambridge.org/core/journals/proceedings-of-the-international-astronomical-union/article/to-beam-or-not-to-beam/B584E5D307F87A8A582A726E0F0CD3CC2015IAUS..313..392IFIS/05 - ASTRONOMIA E ASTROFISICA