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
7 papers · 2 filters
Halo Masses of MgII absorbers at z\sim 0.5 from SDSS DR7
Jean-Rene Gauthier, Hsiao-Wen Chen, Kathy L. Cooksey +3
We present the cross-correlation function of MgII absorbers with respect to a volume-limited sample of luminous red galaxies (LRGs) at z=0.45-0.60 using the largest MgII absorber s…
The High-Ion Content and Kinematics of Low-Redshift Lyman Limit Systems
Andrew J. Fox, Nicolas Lehner, Jason Tumlinson +9
We study the high-ionization phase and kinematics of the circumgalactic medium around low-redshift galaxies using a sample of 23 Lyman Limit Systems (LLSs) at 0.08<z<0.93 observed…
Towards a Unified Description of the Intergalactic Medium at Redshift z~2.5
J. Xavier Prochaska, Piero Madau, John M. O'Meara +1
We examine recent measurements of the z~2.5 intergalactic medium (IGM) which constrain the HI frequency distribution f(N) and the mean free path MFP to ionizing radiation. We argue…
The COS-Halos Survey: Rationale, Design, and A Census of Circumgalactic Neutral Hydrogen
Jason Tumlinson, Christopher Thom, Jessica Werk +11
We present the design and methods of the COS-Halos survey, a systematic investigation of the gaseous halos of 44 z = 0.15-0.35 galaxies using background QSOs observed with the Cosm…
Dissecting the properties of optically-thick hydrogen at the peak of cosmic star formation history
Michele Fumagalli, John M. O'Meara, J. Xavier Prochaska +1
We present results of a blind survey of Lyman limit systems (LLSs) detected in absorption against 105 quasars at z~3 using the blue sensitive MagE spectrograph at the Magellan Clay…
Precious Metals in SDSS Quasar Spectra II: Tracking the Evolution of Strong, 0.4 < z < 2.3 MgII Absorbers with Thousands of Systems
Eduardo N. Seyffert, Kathy L. Cooksey, Robert A. Simcoe +3
We have performed an analysis of over 34,000 MgII doublets at 0.36 < z < 2.29 in Sloan Digital Sky Survey (SDSS) Data-Release 7 quasar spectra; the catalog, advanced data products,…
The Bimodal Metallicity Distribution of the Cool Circumgalactic Medium at z<1
N. Lehner, J. C. Howk, T. M. Tripp +7
We assess the metal content of the cool (10^4 K) circumgalactic medium (CGM) about galaxies at z<1 using an H I-selected sample of 28 Lyman limit systems (LLS, defined here as abso…