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GCN Circular 8700

Subject

GRB 081221: pseudo-redshift (pz=0.7) from the spectral parameters of the prompt emission

Date

2008-12-22T14:02:52Z (15 years ago)

From

Jean-Luc Atteia at Lab d Astrophys.,OMP,Toulouse <atteia@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. 8694Not found
 
 
) 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