[vsnet-grb-info 5093] GRB 070917: pseudo-z= 2.40 from prompt emission spectrum

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  6799
SUBJECT: GRB 070917: pseudo-z= 2.40 from prompt emission spectrum
DATE:    07/09/18 13:58:34 GMT
FROM:    Alexandre Pelangeon at LATT,OMP,Toulouse  <alexandre.pelangeon at ast.obs-mip.fr>

A. Pelangeon & J-L. Atteia (LATT-OMP) report:

We have used the spectral parameters of the most intense
part of GRB 070917 provided by Golenetskii et al. (GCNC 6798)
to compute the spectral pseudo-redshift(**)  of this burst
detected by SWIFT-BAT (Cummings et al., GCNC 6791).

We find a pseudo-redshift pz= 2.40 +/- 1.20


(**) cf. http://www.ast.obs-mip.fr/grb/pz