Browsing by Author "82b65e0a-2a91-4faa-9105-b353de30806e"

Now showing items 1-3 of 3

    • Extended Lyα emission around quasars with eclipsing damped Lyα systems 
      Fathivavsari, H.; Petitjean, P.; Noterdaeme, P.; Paris, I.; Finley, H.; López, S.; Srianand, R. (2016)
      We present spectroscopic observations of six high redshift (z(em) > 2) quasars, which have been selected for their Lyman alpha (Ly alpha) emission region being only partially covered by a strong proximate (z(abs) similar ...
    • Near-infrared spectroscopic observations of high redshift C I absorbers 
      Zou, Siwei; Petitjean, Patrick; Noterdaeme, Pasquier; Ledoux, Cédric; Krogager, J. K.; Fathivavsari, H.; Srianand, R.; López, S. (EDP Sciences, 2018)
      We study a sample of 17 $z>1.5$ C~{\sc i} absorbers observed with the ESO-VLT spectrograph X-SHOOTER. We derive metallicities, depletion onto dust, extinction by dust and analyse the absorption from Mg~{\sc ii}, Mg~{\sc ...
    • Spotting high-z molecular absorbers using neutral carbon Results from a complete spectroscopic survey with the VLT 
      Noterdaeme, P.; Ledoux, C.; Petitjean, P.; Srianand, R.; Balashev, S.; Lopez, S.; Zou, S. (EDP Sciences S A, 2018)
      While molecular quasar absorption systems provide unique probes of the physical and chemical properties of the gas as well as original constraints on fundamental physics and cosmology, their detection remains challenging. ...