On the dust properties of high redshift molecular clouds and the connection to the 2175 Å extinction bump

K. E. Heintz, T. Zafar, A. De Cia +9

We present a study of the extinction and depletion-derived dust properties of gamma-ray burst (GRB) absorbers at $1<z<3$ showing the presence of neutral carbon (\ion{C}{I}). By mod…