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Zafar, V. D'Elia","submitted_at":"2019-08-06T18:19:38Z","abstract_excerpt":"We report the detections of molecular hydrogen (H$_2$), vibrationally-excited H$_2$ (H$^*_2$), and neutral atomic carbon (CI), in two new afterglow spectra of GRBs\\,181020A ($z=2.938$) and 190114A ($z=3.376$), observed with X-shooter at the Very Large Telescope (VLT). Both host-galaxy absorption systems are characterized by strong damped Lyman-$\\alpha$ absorbers (DLAs) and substantial amounts of molecular hydrogen with $\\log N$(HI, H$_2$) = $22.20\\pm 0.05,~20.40\\pm 0.04$ (GRB\\,181020A) and $\\log N$(HI, H$_2$) = $22.15\\pm 0.05,~19.44\\pm 0.04$ (GRB\\,190114A). 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