TITLE:   GCN CIRCULAR
NUMBER:  11888
SUBJECT: Redshift of GRB 110402A theoretically estimated
DATE:    11/04/06 17:12:29 GMT
FROM:    Remo Rufinni at ICRA  <ruffini@icra.it>

R. Ruffini, L. Izzo, A.V. Penacchioni, C.L. Bianco (ICRANet, ICRA and Rome University "La Sapienza") report:

From theoretical considerations on the transparency of the P-GRB (between t0 and t0+6 s), we infer for GRB 110402A a redshift z between 2.02 and 2.48. We strongly encourage a spectroscopic identification of the redshift.