Now showing items 1-2 of 2

  • Zavarygin, E. O.; Webb, J. K.; Dumont, V.; Riemer-Sørensen, Signe (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    The spectrum of the zem = 2.63 quasar Q1009+2956 has been observed extensively on the Keck telescope. The Lyman limit absorption system zabs = 2.504 was previously used to measure D/H by Burles & Tytler using a spectrum ...
  • Zavarygin, E. O.; Webb, J. K.; Riemer-Sørensen, Signe; Dumont, V. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    The z abs = 2.504 Lyman Limit absorption system (LLS) towards Q1009+2956 has previously been used to estimate the primordial deuterium abundance. Since the initial measurement by Burles & Tytler [1], this quasar has been ...