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How do galaxies get their gas
Not the way one might have thought. In hydrodynamic simulations of galaxy formation, some gas follows the traditionally envisioned route, shock heating to the halo virial temperature before cooling
THEORETICAL EVOLUTION OF OPTICAL STRONG LINES ACROSS COSMIC TIME
We use the chemical evolution predictions of cosmological hydrodynamic simulations with our latest theoretical stellar population synthesis, photoionization, and shock models to predict the strong
Galaxies in a simulated ΛCDM Universe – I. Cold mode and hot cores
We study the formation of galaxies in a large volume (50 h −1 Mpc, 2 × 288 3 particles) cosmological simulation, evolved using the entropy and energy-conserving smoothed particle hydrodynamics (SPH)
Theoretical Models of the Halo Occupation Distribution: Separating Central and Satellite Galaxies
The halo occupation distribution (HOD) describes the relation between galaxies and dark matter at the level of individual dark matter halos. The properties of galaxies residing at the centers of
A CENSUS OF OXYGEN IN STAR-FORMING GALAXIES: AN EMPIRICAL MODEL LINKING METALLICITIES, STAR FORMATION RATES, AND OUTFLOWS
In this contribution, we present the first census of oxygen in star-forming galaxies in the local universe. We examine three samples of galaxies with metallicities and star formation rates (SFRs) at
The COS-Halos Survey: Rationale, Design, and a Census of Circumgalactic Neutral Hydrogen
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 Cosmic Origins
The origin of the galaxy mass-metallicity relation and implications for galactic outflows
Using cosmological hydrodynamic simulations that dynamically incorporate enriched galactic outflows together with analytical modelling, we study the origin of the stellar mass-gas-phase metallicity
The Low-Redshift Lyα Forest in Cold Dark Matter Cosmologies
We study the physical origin of the low-redshift Lyα forest in hydrodynamic simulations of four cosmological models, all variants of the cold dark matter scenario. Our most important conclusions are
Deriving a multivariate αCO conversion function using the [C ii]/CO (1−0) ratio and its application to molecular gas scaling relations
We present Herschel PACS observations of the [C II] 158 μm emission line in a sample of 24 intermediate mass (9 < log M_*/M_⊙ < 10) and low metallicity (0.4 < Z/Z_⊙ < 1.0) galaxies from the xCOLD
Physical properties of spectroscopically confirmed galaxies at z ≥ 6. II. Morphology of the rest-frame UV continuum and Lyα emission
We present a detailed structural and morphological study of a large sample of spectroscopically confirmed galaxies at z ≥ 6 using deep Hubble Space Telescope (HST) near-IR broad-band images and
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