Now showing items 1-3 of 3

    • MODERATE Civ ABSORBER SYSTEMS REQUIRE 1012M 

      Vikas, Shailendra; Wood-Vasey, W. Michael; Lundgren, Britt; Britt, Nicholas P.; Myers, Adam D.; AlSayyad, Yusra; York, Donald G.; Schneider, Donald P.; Brinkmann, J.; Bizyaev, Dmitry; Brewington, Howard; Ge, Jian; Malanushenko, Elena; Malanushenko, Viktor; Muna, Demitri; Oravetz, Daniel; Pan, Kaike; Paris, Isabelle; Petitjean, Patrick; Snedden, Stephanie; Shelden, Alaina; Simmons, Audrey; Weaver, Benjamin A. (The American Astronomical Society, 2013)
      We measure the two-point cross-correlation function of C iv absorber systems and quasars, using spectroscopic data from the Sloan Digital Sky Survey III Baryon Oscillation Spectroscopic Survey (BOSS; Data Release 9). ...
    • Nature and statistical properties of quasar associated absorption systems in the XQ-100 Legacy Survey 

      Perrotta, S.; D'Odorico, V.; Prochaska, J. X.; Cristiani, S.; Cupani, G.; Ellison, S.; López, S.; Becker, G. D.; Berg, T. A. M.; Christensen, L.; Denney, K. D.; Hamann, F.; Paris, I.; Vestergaard, M.; Worseck, G. (2016)
      We statistically study the physical properties of a sample of narrow absorption line (NAL) systems looking for empirical evidences to distinguish between intrinsic and intervening NALs without taking into account any a ...
    • Tomography of the intergalactic medium with Lyα forests in close QSO pairs 

      D’Odorico, V.; Viel, M.; Saitta, F.; Cristiani, S.; Bianchi, S.; Boyle, B.; López, S.; Maza Sancho, José; Outram, P. (2006)
      We study the three-dimensional distribution of non-virialized matter at z ∼ 2 using highresolution spectra of quasi-stellar object (QSO) pairs and simulated spectra drawn from cosmological hydrodynamical simulations.We ...