[vsnet-grb-info 4342] GRB 070220: pseudo-z~2.15 from spectral parameters of the prompt

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  6129
SUBJECT: GRB 070220: pseudo-z~2.15 from spectral parameters of the prompt
DATE:    07/02/23 10:48:20 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 GRB 070220
provided by Golenetskii et al. (GCNC 6124) to compute the spectral
pseudo-redshift** of this burst detected by SWIFT-BAT
(Stamatikos et al., GCNC 6114; Parsons et al., GCNC 6121).

We find a pseudo-redshift pz= 2.15 ± 0.80


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