TITLE: GCN CIRCULAR NUMBER: 10445 SUBJECT: GRB 100219A: X-shooter refined analysis DATE: 10/02/20 21:32:41 GMT FROM: Antonio Deugarte at IAA-CSIC A. de Ugarte Postigo, C.C. Thoene (INAF/OAB), S.D. Vergani (APC/Univ. Paris 7), B. Milvang-Jensen, J. Fynbo (DARK/NBI) report on behalf of the X-shooter GRB collaboration: We continued with the analysis of X-shooter's spectrum (Groot et al. GCN 10441) obtained for the afterglow of GRB 100219A (Rowlinson et al. GCN 10430). Additionally to the strong Ly-alpha absorption reported in the previous GCN and the SiII and SiII* absorptions suggested by Cenko et al. (GCN 10443) we detect several other absorption features, including SII, OI, OI*, CII, CII*, SiIV, CIV, FeII, AlII and AlIII at a redshift of 4.6667 +/- 0.0005. We also detect an intervening system at z = 2.1810 +/- 0.0005 through the identification of FeII, MgII and MgI. A second intervening system might be present at z = 1.7980 +/- 0.0005 identified by faint MgII and MgI absorptions. Further analysis is ongoing.