573 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of California, Santa CruzUS50 papers
- Space Telescope Science InstituteUS27 papers
- University of California ObservatoriesUS18 papers
- University of Notre DameUS17 papers
- Durham UniversityGB15 papers
- University of Massachusetts AmherstUS14 papers
- California Institute of TechnologyUS12 papers
- Johns Hopkins UniversityUS12 papers
- Max Planck Institute for AstronomyDE12 papers
- W.M. Keck ObservatoryUS11 papers
- Carnegie ObservatoriesUS10 papers
- University of ArizonaUS10 papers
3 papers · 2 filters
The Keck+Magellan Survey for Lyman Limit Absorption II: A Case Study on Metallicity Variations
Gabriel E. Prochter, J. Xavier Prochaska, John M. O'Meara +2
We present an absorption line analysis of the Lyman limit system (LLS) at z=3.55 in our Magellan/MIKE spectrum of PKS2000-330. Our analysis of the Lyman limit and full HI Lyman ser…
A Definitive Survey for Lyman Limit Systems at z~3.5 with the Sloan Digital Sky Survey
J. Xavier Prochaska, John M. O'Meara, Gabor Worseck
We perform a semi-automated survey for tau>=2 Lyman Limit systems (LLSs) in quasar spectra from the Sloan Digital Sky Survey, Data Release 7. From a starting sample of 2473 quasars…
A Direct Measurement of the IGM Opacity to HI Ionizing Photons
J. Xavier Prochaska, Gabor Worseck, John M. O'Meara
We present a new method to directly measure the opacity from HI Lyman limit (LL) absorption k_LL along quasar sightlines by the intergalactic medium (IGM). The approach analyzes th…