[vsnet-grb-info 7119] GRB 081221: pseudo-redshift (pz=0.7) from the spectral parameters of the prompt emission
GCN Circulars
gcncirc at capella.gsfc.nasa.gov
Mon Dec 22 23:03:00 JST 2008
TITLE: GCN CIRCULAR
NUMBER: 8700
SUBJECT: GRB 081221: pseudo-redshift (pz=0.7) from the spectral parameters of the prompt emission
DATE: 08/12/22 14:02:52 GMT
FROM: Jean-Luc Atteia at Lab d Astrophys.,OMP,Toulouse <atteia at ast.obs-mip.fr>
A. Pelangeon and J-L. Atteia (LATT-OMP) report:
We have used the spectral parameters of GRB 081221 provided
by Golenetskii et al. (GCN Circ. 8694) to compute the spectral
pseudo-redshift** of this burst detected by Swift-BAT (Hoversten
et al. GCNC 8687).
We find a pseudo-redshift pz = 0.7 +/- 0.1
** http://cosmos.ast.obs-mip.fr/projet/index.html
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