148 citations · 371 across the 7 of their papers we have counts for
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High Resolution Spectra of Quasar AALs: 3C 191
Frederick W. Hamann, T. A. Barlow, F. C. Chaffee +2
We discuss new high-resolution (6.7 km/s) spectra of the associated absorption lines (AALs) in the radio-loud quasar 3C 191. The measured AALs have ionizations ranging from Mg I to…
High-Resolution Keck Spectra of the Associated Absorption Lines in 3C 191
Frederick W. Hamann, T. A. Barlow, F. C. Chaffee +2
Associated absorption lines (AALs) are valuable probes of the gaseous environments near quasars. Here we discuss high-resolution (6.7 km/s) spectra of the AALs in the radio-loud qu…
New Statistical Measures of the Lya Forest Spectra for Accurate Comparison to Theoretical Models
J. Miralda-Escude, M. Rauch, W. L. W. Sargent +6
We propose a new method of analysis for the \lya forest, namely to measure the 1-point and 2-point joint probability distribution of the transmitted flux. The results for a sample…
Ionization and Abundances in Intrinsic QSO Absorption-Line Systems
F. Hamann, T. Barlow, R. D. Cohen +2
We discuss two aspects of the ionization and abundances in QSO intrinsic absorbers. First, we use the high-ionization doublet Ne VIII 770,780 to test the relationship between the U…
Keck High Resolution Spectroscopy of PKS 0123+257: Intrinsic Absorption in a Radio Loud Quasar
Thomas A. Barlow, W. L. W. Sargent
We present results from Keck I high resolution spectroscopy of the radio loud quasar PKS 0123+257 (=2.364, V=17.5). In this object we detect Ly, N V 1238,1242, Si IV 1393,1…
Temperature and Kinematics of CIV Absorption Systems
M. Rauch, W. L. W. Sargent, D. S. Womble +1
We use Keck HIRES spectra of three intermediate redshift QSOs to study the physical state and kinematics of the individual components of CIV selected heavy element absorption syste…