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Ergodicity of FIRE: star formation variations within and between simulated galaxies
Fraser M. Smith, Robert J. Thacker
We investigate the ergodicity of star formation in simulated galaxies from the FIRE-2 (Feedback In Realistic Environments) project. We restrict ergodicity considerations to being r…
Examining partial ergodicity as a predictor of star formation departures from the galactic main sequence in isolated galaxies
Fraser M. Smith, Robert J. Thacker
Lacking the ability to follow individual galaxies on cosmological timescales, our understanding of individual galaxy evolution is broadly inferred from population trends and behavi…
Comparing Simulations of AGN Feedback
Mark L. A. Richardson, Evan Scannapieco, Julien Devriendt +5
We perform adaptive mesh refinement (AMR) and smoothed particle hydrodynamics (SPH) cosmological zoom simulations of a region around a forming galaxy cluster, comparing the ability…
nIFTy Galaxy Cluster simulations IV: Quantifying the Influence of Baryons on Halo Properties
Weiguang Cui, Chris Power, Alexander Knebe +21
Building on the initial results of the nIFTy simulated galaxy cluster comparison, we compare and contrast the impact of baryonic physics with a single massive galaxy cluster, run w…
"Observing and Analyzing" Images From a Simulated High Redshift Universe
Robert J. Morgan, Rogier A. Windhorst, Evan Scannapieco +1
We investigate the high-redshift evolution of the restframe UV-luminosity function (LF) of galaxies via hydrodynamical cosmological simulations, coupled with an emulated observatio…
AGN Feedback models: Correlations with star formation and observational implications of time evolution
Robert J. Thacker, C. MacMackin, James Wurster +1
We examine the correlation between the star formation rate (SFR) and black hole accretion rate (BHAR) across a suite of different AGN feedback models, using the time evolution of a…
Cloud angular momentum and effective viscosity in global SPH simulations with feedback
David J. Williamson, Robert J. Thacker, James Wurster +1
We examine simulations of isolated galaxies to analyse the effects of localised feedback on the formation and evolution of molecular clouds. Feedback contributes to turbulence and…
High Velocity-dispersion Cold Gas in ULIRG Outflows. I: Direct Simulations
David J. Williamson, Robert J. Thacker, Evan Scannapieco +1
Observations have revealed cold gas with large velocity dispersions (~300 km/s) within the hot outflows of ultra-luminous infrared galaxies (ULIRGs). This gas may trace its origin…
The Halo Shape and Evolution of Polar Disc Galaxies
O. N. Snaith, B. K. Gibson, C. B. Brook +5
We examine the properties and evolution of a simulated polar disc galaxy. This galaxy is comprised of two orthogonal discs, one of which contains old stars (old stellar disc), and…
Metallicity Gradients in Disks: Do Galaxies Form Inside-Out?
K. Pilkington, C. G. Few, B. K. Gibson +13
We examine radial and vertical metallicity gradients using a suite of disk galaxy simulations, supplemented with two classic chemical evolution approaches. We determine the rate of…