Figuring Out Gas & Galaxies in Enzo (FOGGIE). I. Resolving Simulated Circumgalactic Absorption at 2 < z < 2.5

Abstract

We present simulations from the new "Figuring Out Gas & Galaxies in Enzo" (FOGGIE) project. In contrast to most extant simulations of galaxy formation, which concentrate computational resources on galactic disks and spheroids with fluid and particle elements of fixed mass, the FOGGIE simulations focus on extreme spatial and mass resolution in the circumgalactic medium (CGM) surrounding galaxies. Using the Enzo code and a new refinement scheme, FOGGIE reaches spatial resolutions of 381 comoving $h^{-1}$ pc and resolves extremely low masses ($\lesssim 1$--$100$ Msun out to 100 comoving $h^{-1}$ kpc from the central halo. At these resolutions, cloud and filament-like structures giving rise to simulated absorption are smaller, and better resolved, than the same structures simulated with standard density-dependent refinement. Most of the simulated absorption arises in identifiable and well-resolved structures with masses $\lesssim 10^4$ Msun, well below the mass resolution of typical zoom simulations. However, integrated quantities such as mass surface density and ionic covering fractions change at only the $\lesssim 30$% level as resolution is varied. This relatively small changes in projected quantities---even when the sizes and distribution of absorbing clouds change dramatically---indicate that commonly used observables provide only weak constraints on the physical structure of the underlying gas. Comparing the simulated absorption features to the KODIAQ (Keck Observatory Database of Ionized Absorption toward Quasars) survey of $z\sim 2$--$3.5$ Lyman limit systems, we show that high-resolution FOGGIE runs better resolve the internal kinematic structure of detected absorption, and better match the observed distribution of absorber properties. These results indicate that CGM resolution is key in properly testing simulations of galaxy evolution with circumgalactic observations.

ApJ, in press. New appendix with results from simulation with 78pc resolution CGM at z=2.5 now included. Appendix C with additional velocity phase diagrams has been omitted to fit within the arXiv space restraints

References in corpus (64)

• The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
• Planck 2013 results. XVI. Cosmological parameters
• The EAGLE project: Simulating the evolution and assembly of galaxies and their environments
• Introducing the Illustris Project: Simulating the coevolution of dark and visible matter in the Universe
• Galaxies on FIRE (Feedback In Realistic Environments): Stellar Feedback Explains Cosmologically Inefficient Star Formation
• A Multi-Code Analysis Toolkit for Astrophysical Simulation Data
• Radiative transfer in a clumpy universe: IV. New synthesis models of the cosmic UV/X-ray background
• FIRE-2 Simulations: Physics versus Numerics in Galaxy Formation
• The Circumgalactic Medium
• The Stellar IMF from Turbulent Fragmentation
• Enzo: An Adaptive Mesh Refinement Code for Astrophysics
• The COS-Halos Survey: Physical Conditions and Baryonic Mass in the Low-Redshift Circumgalactic Medium
• Mass, Metal, and Energy Feedback in Cosmological Simulations
• Gaseous Galaxy Halos
• Where Are the Baryons? II: Feedback Effects
• The COS-Halos Survey: Rationale, Design, and A Census of Circumgalactic Neutral Hydrogen
• Grackle: a Chemistry and Cooling Library for Astrophysics
• A Budget and Accounting of Metals at z~0: Results from the COS-Halos Survey
• Model-independent insights into the nature of the Lyman-alpha forest and the distribution of matter in the universe
• The COS-Halos Survey: Metallicities in the Low-Redshift Circumgalactic Medium
• Characterizing the Circumgalactic Medium of Nearby Galaxies with HST/COS and HST/STIS Absorption-Line Spectroscopy
• A Characteristic Scale for Cold Gas
• Cosmological simulations of the circumgalactic medium with 1 kpc resolution: enhanced HI column densities
• Bimodality of low-redshift circumgalactic O VI in non-equilibrium EAGLE zoom simulations
• The COS-Halos Survey: Origins of the Highly Ionized Circumgalactic Medium of Star-Forming Galaxies
• In-N-Out: the gas cycle from dwarfs to spiral galaxies
• Distances to Galactic high-velocity clouds. I. Cohen Stream, complex GCP, cloud g1
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• The survival of gas clouds in the Circumgalactic Medium of Milky Way-like galaxies
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• Hydrodynamical Coupling of Mass and Momentum in Multiphase Galactic Winds
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• Constraints on Hydrodynamical Subgrid Models from Quasar Absorption Line Studies of the Simulated Circumgalactic Medium
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• A clumpy and anisotropic galaxy halo at z=1 from gravitational-arc tomography
• On the OVI Abundance in the Circumgalactic Medium of Low-Redshift Galaxies
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