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A Strong Blend in the Morning: Studying the Circumgalactic Medium Before Cosmic Noon with Strong, Blended Lyman- Forest Systems
Sean Morrison, Debopam Som, Matthew M. Pieri +2
We study of the properties of a new class of circumgalactic medium absorbers identified in the Lyman- forest: "Strong, Blended Lyman-" (or SBLA) absorption systems. We study…
The cross-correlation of galaxies in absorption with the Lyman forest
Ignasi Pérez-Ràfols, Matthew M. Pieri, Michael Blomqvist +3
We present the first clustering measurement of Strong Blended Lyman (SBLA) absorption systems by measuring their cross-correlation with the Lyman forest. SBLAs are a new po…
Probing Large-scale UV Background Inhomogeneity Associated with Quasars using Metal Absorption
Sean Morrison, Matthew M. Pieri, Debopam Som +1
We study large-scale UV background inhomogeneity in three-dimensions associated with the observed quasar populations at high redshift. We do this by measuring metal absorption thro…
Hubble Space Telescope Observations of Sub-Damped Lyman-alpha Absorbers at z < 0.5, and Implications for Galaxy Chemical Evolution
Debopam Som, Varsha P. Kulkarni, Joseph Meiring +5
We report observations of four sub-damped Lyman-alpha (sub-DLA) quasar absorbers at z<0.5 obtained with the Hubble Space Telescope Cosmic Origins Spectrograph. We measure the avail…
Element Abundances at High-redshift: Magellan MIKE Observations of sub-Damped Lyman-alpha Absorbers at 1.7 < z <2.4
Debopam Som, Varsha P. Kulkarni, Joseph Meiring +4
We present chemical abundance measurements from high-resolution observations of 5 sub-damped Lyman-alpha absorbers at 1.7 < z < 2.4 observed with the Magellan Inamori Kyocera Echel…
A Super-Damped Lyman-alpha QSO Absorber at z=2.2
Varsha P. Kulkarni, Joseph Meiring, Debopam Som +4
We report the discovery of a "super-damped" Lyman-alpha absorber at toward QSO Q1135-0010 in the Sloan Digital Sky Survey, and follow-up VLT UVES spectroscopy. Voi…