Four GRB-Supernovae at Redshifts between 0.4 and 0.8

S. Klose, S. Schmidl, D. A. Kann +16

Twenty years ago, GRB 980425/SN 1998bw revealed that long Gamma-Ray Bursts (GRBs) are physically associated with broad-lined type Ic supernovae. Since then more than 1000 long GRBs…