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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…
Bayesian inferences of galaxy formation from the K-band luminosity and HI mass functions of galaxies: constraining star formation and feedback
Yu Lu, H. J. Mo, Zhankui Lu +2
We infer mechanisms of galaxy formation for a broad family of semi-analytic models (SAMs) constrained by the K-band luminosity function and HI mass function of local galaxies using…
Creation of Peanut-Shaped Bulges via the Slow Mode of Bar Growth
Michael S. Petersen, Martin D. Weinberg, Neal Katz
Recent theoretical work has implicated fast bar formation modes and subsequent evolution as the creation mechanism for the observed peanut-shaped bulges in some edge-on disk galaxi…
Tracing Inflows and Outflows with Absorption Lines in Circumgalactic Gas
Amanda Brady Ford, Romeel Davé, Benjamin D. Oppenheimer +4
We examine how HI and metal absorption lines within low-redshift galaxy halos trace the dynamical state of circumgalactic gas, using cosmological hydrodynamic simulations that incl…
A Budget and Accounting of Metals at z~0: Results from the COS-Halos Survey
Molly S. Peeples, Jessica K. Werk, Jason Tumlinson +4
We present a budget and accounting of metals in and around star-forming galaxies at . We combine empirically derived star formation histories with updated supernova and AG…
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…