Can the same generation of astronomers see both the short gamma-ray   bursts and their supernovae precursors?
  We consider the possibility of observing supernova (SN) - gamma-ray burst (GRB) pairs separated by several years. These energetic events correspond to the second SN explosion in a double star system followed by the formation of the very short-lived pair of compact objects and finally by the GRB generation after their merge. Possible connection of SN 1997ds and GRB 990425 is discussed. 
V.I. Dokuchaev, Yu.N. Eroshenko
astro-ph.HE