245 citations · 753 across the 15 of their papers we have counts for
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Observation of interstellar lithium in the low-metallicity Small Magellanic Cloud
J. Christopher Howk, Nicolas Lehner, Brian D. Fields +1
The primordial abundances of light elements produced in the standard theory of Big Bang nucleosynthesis (BBN) depend only on the cosmic ratio of baryons to photons, a quantity infe…
A Hubble Space Telescope Study of Lyman Limit Systems: Census and Evolution
Joseph Ribaudo, Nicolas Lehner, J. Christopher Howk
We present a survey for optically thick Lyman limit absorbers at z<2.6 using archival Hubble Space Telescope observations with the Faint Object Spectrograph and Space Telescope Ima…
Evidence for Cold Accretion: Primitive Gas Flowing onto a Galaxy at z~0.274
Joseph Ribaudo, Nicolas Lehner, J. Christopher Howk +5
We present UV and optical observations from the Cosmic Origins Spectrograph on the Hubble Space Telescope and Keck of a z= 0.27395 Lyman limit system (LLS) seen in absorption again…