Speaker
Daniele Malesani
(IMAPP / Radboud University)
Description
The duration distribution of gamma-ray bursts is bimodal, and the general consensus has been that the two groups stem from separate progenitors: binary compact object mergers and supernovae for short and long GRBs, respectively. A number of events discovered in the recent past has however proven this distinction to be imperfect. Kilonovae, the smoking-guns of mergers, were detected following the long, bright GRB 211211A and 230307A. Another long GRB stemming from a merger was identified via its host galaxy properties (the first case where dynamical formation of the binary could be ascertained). I will review this newly identified, rapidly expanding population of nearby cosmic explosions.
Primary author
Daniele Malesani
(IMAPP / Radboud University)
