25 citations · 27 across the 2 of their papers we have counts for
2 papers
astro-ph.CO2022★ 2 cited
Discovery of three new near-pristine absorption clouds at -4.4
P. Frédéric Robert, Michael T. Murphy, John M. O'Meara +2
We report the discovery of three new "near-pristine" Lyman Limit Systems (LLSs), with metallicities ~1/1000 solar, at redshifts 2.6, 3.8 and 4.0, with a targeted survey at the Keck…
astro-ph.GA2018★ 25 cited
Exploring the origins of a new, apparently metal-free gas cloud at z = 4.4
P. Frédéric Robert, Michael T. Murphy, John M. O'Meara +2
We report the discovery and analysis of only the third Lyman-limit system in which a high-quality resolution, echelle spectrum reveals no metal absorption lines, implying a metalli…