167 citations · 292 across the 2 of their papers we have counts for
4 papers
Heavy Element Absorption Systems at : Metal-Poor Neutral Gas and a Diminishing Signature of Highly Ionized Circumgalactic Matter
T. J. Cooper, R. A. Simcoe, K. L. Cooksey +5
Ratios of different ions of the same element encode ionization information independently from relative abundances in quasar absorption line systems, crucial for understanding the m…
Mg II Absorption at 2<z<7 with Magellan/FIRE, III. Full Statistics of Absorption Towards 100 High-Redshift QSOs
Shi-Fan S. Chen, Robert A. Simcoe, Paul Torrey +12
We present final statistics from a survey for intervening MgII absorption towards 100 quasars with emission redshifts between and . Using infrared spectra from Mag…
Evidence for a Hard Ionizing Spectrum from a z=6.11 Stellar Population
Ramesh Mainali, Juna A. Kollmeier, Daniel P. Stark +4
We present the Magellan/FIRE detection of highly-ionized CIV 1550 and OIII] 1666 in a deep infrared spectrum of the z=6.11 gravitationally lensed low-mass galaxy RXC J2248.7-4431-I…
The identification of z-dropouts in Pan-STARRS1: three quasars at 6.5<z<6.7
B. P. Venemans, E. Bañados, R. Decarli +30
Luminous distant quasars are unique probes of the high redshift intergalactic medium (IGM) and of the growth of massive galaxies and black holes in the early universe. Absorption d…