304 citations · 1.4k across the 22 of their papers we have counts for
22 papers
A Complete Census of Circumgalactic MgII at Redshift z<~ 0.5
Yun-Hsin Huang, Hsiao-Wen Chen, Stephen A. Shectman +5
We present a survey of MgII absorbing gas in the vicinity of 380 random galaxies, using 156 background quasi-stellar objects(QSOs) as absorption-line probes. The sample comprises 2…
Characterizing Circumgalactic Gas around Massive Ellipticals at z~0.4 - II. Physical Properties and Elemental Abundances
Fakhri S. Zahedy, Hsiao-Wen Chen, Sean D. Johnson +5
We present a systematic investigation of the circumgalactic medium (CGM) within projected distances d<160 kpc of luminous red galaxies (LRGs). The sample comprises 16 intermediate-…
Characterizing Circumgalactic Gas around Massive Ellipticals at z ~ 0.4 I. Initial Results
Hsiao-Wen Chen, Fakhri S. Zahedy, Sean D. Johnson +4
We present a new Hubble Space Telescope (HST) Cosmic Origins Spectrograph (COS) absorption-line survey to study halo gas around 16 luminous red galaxies (LRGs) at z=0.21-0.55. The…
On the radial profile of gas-phase Fe/α ratio around distant galaxies
Fakhri S. Zahedy, Hsiao-Wen Chen, Jean-René Gauthier +1
This paper presents a study of the chemical compositions in cool gas around a sample of 27 intermediate-redshift galaxies. The sample comprises 13 massive quiescent galaxies at z=0…
What is the physical origin of strong Lya emission? II. Gas Kinematics and Distribution of Lya Emitters
Takatoshi Shibuya, Masami Ouchi, Kimihiko Nakajima +8
We present a statistical study of velocities of Lya, interstellar (IS) absorption, and nebular lines and gas covering fraction for Lya emitters (LAEs) at z~2. We make a sample of 2…
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…