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The origin of the diverse morphologies and kinematics of Milky Way-mass galaxies in the FIRE-2 simulations
Shea Garrison-Kimmel, Philip F. Hopkins, Andrew Wetzel +11
We use hydrodynamic cosmological zoom-in simulations from the FIRE project to explore the morphologies and kinematics of fifteen Milky Way (MW)-mass galaxies. Our sample ranges fro…
Reconciling observed and simulated stellar halo masses
Robyn E. Sanderson, Shea Garrison-Kimmel, Andrew Wetzel +6
We use cosmological hydrodynamical simulations of Milky-Way-mass galaxies from the FIRE project to evaluate various strategies for estimating the mass of a galaxy's stellar halo fr…
Modeling the Impact of Baryons on Subhalo Populations with Machine Learning
Ethan O. Nadler, Yao-Yuan Mao, Risa H. Wechsler +2
We identify subhalos in dark matter-only (DMO) zoom-in simulations that are likely to be disrupted due to baryonic effects by using a random forest classifier trained on two hydrod…
Simulating galaxies in the reionization era with FIRE-2: morphologies and sizes
Xiangcheng Ma, Philip F. Hopkins, Michael Boylan-Kolchin +7
We study the morphologies and sizes of galaxies at z>5 using high-resolution cosmological zoom-in simulations from the Feedback In Realistic Environments project. The galaxies show…
Simulating galaxies in the reionization era with FIRE-2: galaxy scaling relations, stellar mass functions, and luminosity functions
Xiangcheng Ma, Philip F. Hopkins, Shea Garrison-Kimmel +6
We present a suite of cosmological zoom-in simulations at z>5 from the Feedback In Realistic Environments project, spanning a halo mass range M_halo~10^8-10^12 M_sun at z=5. We pre…
Gas kinematics, morphology, and angular momentum in the FIRE simulations
Kareem El-Badry, Eliot Quataert, Andrew Wetzel +8
We study the z=0 gas kinematics, morphology, and angular momentum content of isolated galaxies in a suite of cosmological zoom-in simulations from the FIRE project spanning $M_{\st…
Formation of Globular Cluster Candidates in Merging Proto-galaxies at High Redshift: A View from the FIRE Cosmological Simulations
Ji-hoon Kim, Xiangcheng Ma, Michael Y. Grudić +7
Using a state-of-the-art cosmological simulation of merging proto-galaxies at high redshift from the FIRE project, with explicit treatments of star formation and stellar feedback i…
FIRE-2 Simulations: Physics versus Numerics in Galaxy Formation
Philip F Hopkins, Andrew Wetzel, Dusan Keres +25
The Feedback In Realistic Environments (FIRE) project explores feedback in cosmological galaxy formation simulations. Previous FIRE simulations used an identical source code (FIRE-…
Not so lumpy after all: modeling the depletion of dark matter subhalos by Milky Way-like galaxies
Shea Garrison-Kimmel, Andrew R. Wetzel, James S. Bullock +8
Among the most important goals in cosmology is detecting and quantifying small () dark matter (DM) subhalos. Current probes around the…