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GCN Circular 9307

Subject
GRB 090427: pseudo-z= 1.48 from prompt emission spectrum
Date
2009-04-30T14:38:47Z (15 years ago)
From
Alexandre Pelangeon at LATT,CNRS,U. Toulouse <alexandre.pelangeon@gmail.com>
A. Pelangeon & J-L. Atteia (LATT-OMP) report:

We used the spectral parameters of GRB 090427
provided by Golenetskii et al. (GCNC 9296)
to compute the spectral pseudo-redshift(**) of this burst
localized by IPN (Pal'shin et al., GCNC 9277).

We find a pseudo-redshift pz= 1.48 +/- 0.20


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