Time-dependent excitation and ionization modelling of absorption-line variability due to GRB 080310

P. M. Vreeswijk, C. Ledoux, A. J. J. Raassen +6

We model the time-variable absorption of FeII, FeIII, SiII, CII and CrII detected in UVES spectra of GRB 080310, with the afterglow radiation exciting and ionizing the interstellar…