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GCN Circular 6409

GRB 070512: pseudo-z ~ 1.39 from prompt emission spectrum
2007-05-15T08:25:16Z (17 years ago)
Alexandre Pelangeon at LATT,OMP,Toulouse <>
A. Pelangeon & J-L. Atteia (LATT-OMP) report:

We have used the spectral parameters obtained with the Konus
spectrum of the bright burst GRB 070512 (Golenetskii et al., GCNC 6408)
to compute the spectral pseudo-redshift(**) of this burst
localized by the IPN Network.

We obtain: pz= 1.39 +/- 0.20

As this redshift estimator is partly based on the Amati relation,
we caution that this pseudo-redshift might be wrong
if GRB 070512 is a short-hard burst.

(**) cf.
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