GCN Circular 8077
P. Jakobsson (U. Hertfordshire), J. P. U. Fynbo, P. M. Vreeswijk (DARK/NBI) and A. de Ugarte Postigo (ESO) report on behalf of a larger collaboration: We have reduced the VLT spectra presented in Jakobsson et al. (GCN 8062) with new calibration files and performed a thorough line search in all four grisms (300V, 1028z, 1200R, 1400V) covering approximately 3700-9500 A. We confirm the existence of a line system at redshift z = 1.505 +/- 0.001 displaying Fe II (2382,2586,2600), the Mg II doublet (2796,2803) and Mg I (2852). In addition, there is a clear bump (flux decrease) present between 5300-5600 A that can be interpreted as the 2175 A extinction feature at z ~ 1.5. Apart from the z = 1.20 redshift system presented in GCN 8062, no other significant lines are visible. We therefore conclude that z = 1.505 is the redshift of GRB 080805.