GCN Circular 10350
Arne Rau (MPE Garching), Johan Fynbo (DARK), and Jochen Greiner (MPE Garching): "We report on additional analysis of our VLT/FORS2 spectrum of the optical afterglow of GRB 091109A (Oates et al., GCN #10138, Guidorzi et al. GCN#10142, Oates GCN#10143, Afonso et al., GCN #10158 ). A careful search revealed absorption lines at 6227, 6308, and 6321 Angstroem which we identify with SiII and the CIV doublet a common redshift of z=3.076 +/- 0.002. Lyman-alpha absorption at this redshift is located shortwards of the blue wavelength cut-off and the earlier reported tentative detection at 5700A (Afonso et al., GCN #10158) is not confirmed."