A possible macronova in the late afterglow of the long–short burst GRB 060614
A possible macronova in the late afterglow of the long–short burst GRB 060614
Abstract Long-duration (>2 s) γ-ray bursts that are believed to originate from the death of massive stars are expected to be accompanied by supernovae. GRB 060614, that lasted 102 s, lacks a supernova-like emission down to very stringent limits and its physical origin is still debated. Here we report the …