TITLE:   GCN CIRCULAR
NUMBER:  14888
SUBJECT: GRB 130609B: Theoretical redshift estimation
DATE:    13/06/12 18:57:55 GMT
FROM:    Remo Rufinni at ICRA  <ruffini@icra.it>

R. Ruffini, C.L. Bianco, M. Enderli, M. Muccino, A.V. Penacchioni, G.B. Pisani, J.A. Rueda, N. Sahakyan, Y. Wang, L. Izzo report:

The late X-ray observations of GRB 130609B evidences a pattern typical of a family of GRBs associated to Supernovae following the Induced Gravitational Collapse (IGC) paradigm. We estimate a cosmological redshift for the GRB of approximately z=1.3. We encourage observations.