Now showing items 1-4 of 4

    • 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 ...
    • López Morales, Sebastián; Tejos, N.; Barrientos, L. F.; Ledoux, C.; Sharon, K.; Katsianis, Antonios; Florian, M. K.; Rivera Thorsen, E.; Bayliss, M. B.; Dahle, H.; Fernández Figueroa, Antonia; Gladders, M. D.; Gronke, M.; Hamel, M.; Pessa, I.; Rigby, J. R. (Oxford Unv Press, 2020)
      We present spatially resolved Echelle spectroscopy of an intervening Mg II-Fe II-Mg I absorption-line system detected at z(abs) = 0.73379 towards the giant gravitational arc wPSZ1 G311.65-18.48. The absorbing gas is ...
    • 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. ...
    • Kervella, P.; Mérand, A.; Ledoux, C.; Demory, B.-O.; Le Bouquin, J.-B. (EDP Sciences, 2016)
      The nearby red dwarf binary GJ65 AB (UV + BL Ceti, M5.5Ve + M6Ve) is a cornerstone system to probe the physics of very low-mass stars. The radii of the two stars are currently known only from indirect photometric estimates, ...