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Virial shocks are suppressed in cosmic ray-dominated galaxy halos
Suoqing Ji, Dušan Kereš, T. K. Chan +5
We study the impact of cosmic rays (CRs) on the structure of virial shocks, using a large suite of high-resolution cosmological FIRE-2 simulations accounting for CR injection by su…
Probing the CGM of Low-redshift Dwarf Galaxies Using FIRE Simulations
Fei Li, Mubdi Rahman, Norman Murray +7
Observations of UV metal absorption lines have provided insight into the structure and composition of the circumgalactic medium (CGM) around galaxies. We compare these observations…
The IRX- relation of high-redshift galaxies
Lichen Liang, Robert Feldmann, Christopher C. Hayward +5
The relation between infrared excess (IRX) and UV spectral slope () is an empirical probe of dust properties of galaxies. The shape, scatter, and redshift evolution of…
Cosmological simulations of quasar fueling to sub-parsec scales using Lagrangian hyper-refinement
Daniel Anglés-Alcázar, Eliot Quataert, Philip Hopkins +7
We present cosmological hydrodynamic simulations of a quasar-mass halo ( at z=2) that for the first time resolve gas transport down…
Progenitor-mass-dependent yields amplify intrinsic scatter in dwarf-galaxy elemental abundance ratios
Dhruv A. Muley, Coral R. Wheeler, Philip F. Hopkins +3
In hydrodynamic simulations, prevailing subgrid chemical-evolution models often use a single, "IMF-averaged" supernova yield, ignoring variations in elemental abundance ratios (par…
Virialization of the inner CGM in the FIRE simulations and implications for galaxy discs, star formation and feedback
Jonathan Stern, Claude-André Faucher-Giguère, Drummond Fielding +13
We use the FIRE-2 cosmological simulations to study the formation of a quasi-static, virial-temperature gas phase in the circumgalactic medium (CGM) at redshifts 0<z<5, and how the…