12 citations · 21 across the 14 of their papers we have counts for
14 papers
Hot or Cold? Radial Redistribution of Stars in FIRE Simulations of Milky Way-Mass Galaxies and the Asymmetry of Inward versus Outward Migrators
Cecilia Steel, Andrew Wetzel, Rori Kang +3
Stars can radially redistribute (migrate) within galactic disks. The degree to which this occurs as dynamically `cold' (preserves orbital eccentricity) or `hot' (increases eccentri…
No Stream Left Unscathed: The imprint of a host galaxy
Arpit Arora, Peter S. Ferguson, Jacob Nibauer +11
Stellar streams from disrupted globular clusters are excellent probes of dark matter (DM) subhalos. Observed Milky Way streams display a remarkable diversity of features: spurs, ga…
Radial redistribution of stellar orbits in FIRE simulations of Milky-Way-mass galaxies
Matthew A. Bellardini, Fiona McCluskey, Andrew Wetzel +3
A central question in galactic dynamics and galactic archeology is: how much do the orbits of stars redistribute (migrate) after birth? We use the FIRE-2 cosmological zoom-in simul…
The origin of strong -element bimodalities in FIRE simulations of Milky Way-mass galaxies
Megan Barry, Andrew Wetzel, Sarah Loebman +2
One of the Milky Way's characteristic features is a strongly bimodal distribution of -process elements, such as Mg, at fixed [Fe/H] in stellar abundances. We examine patterns in…
Understanding the Origin and Dynamical Evolution of the Unique Open Star Cluster Berkeley 20 using FIRE Simulations
Alessa I. Wiggins, Jamie R. Quinn, Micah Oeur +11
Open clusters (OCs) act as key probes that can be leveraged to constrain the formation and evolution of the Milky Way (MW)'s disk, as each has a unique chemical fingerprint and wel…
Testing the Stellar Feedback-driven Breathing Mode in Low-mass Galaxies with Gas Kinematics
Yifei Luo, Joseph Wick, Alexie Leauthaud +7
Hydrodynamic simulations have proposed that stellar feedback and bursty star-formation can produce dark matter cores in low-mass galaxies. A key prediction is that feedback-driven…
Spiral Structure Properties, Dynamics, and Evolution in MW-mass Galaxy Simulations
J. R. Quinn, S. R. Loebman, K. J. Daniel +8
The structure of spiral galaxies is essential to understanding the dynamics and evolution of disk galaxies; however, the precise nature of spiral arms remains uncertain. Two challe…
Stellar Velocity Dispersion versus Age: Consistency across Observations and Simulations, with the Milky Way as an Outlier
Fiona McCluskey, Andrew Wetzel, Sarah Loebman +1
Within disk galaxies, the velocity dispersion, , of stars increases with age, , as measured in the Milky Way (MW) and nearby galaxies. This relation provides a key window int…
Effect of gas accretion on -element bimodality in Milky Way-mass galaxies in the FIRE-2 simulations
Hanna Parul, Jeremy Bailin, Sarah R. Loebman +3
We analyse the stellar distributions on the [Fe/H]-[Mg/Fe] plane for 11 Milky Way-mass galaxies from the FIRE-2 cosmological baryonic zoom-in simulations. Alpha-element bimodality,…
Inside-out versus Upside-down: The Origin and Evolution of Metallicity Radial Gradients in FIRE Simulations of Milky Way-mass Galaxies and the Essential Role of Gas Mixing
Russell L. Graf, Andrew Wetzel, Jeremy Bailin +1
Within the Milky Way (MW), younger stellar populations exhibit steeper (more negative) metallicity radial gradients; the origin of this trend remains debated. The FIRE-2 cosmologic…
Strong Chemical Tagging in FIRE: Intra and Inter-Cluster Chemical Homogeneity in Open Clusters in Milky Way-like Galaxy Simulations
Binod Bhattarai, Sarah R. Loebman, Melissa K. Ness +4
Open star clusters are the essential building blocks of the Galactic disk; "strong chemical tagging" - the premise that all star clusters can be reconstructed given chemistry infor…
Efficient and accurate force replay in cosmological-baryonic simulations
Arpit Arora, Robyn Sanderson, Christopher Regan +8
We construct time-evolving gravitational potential models for a Milky Way-mass galaxy from the FIRE-2 suite of cosmological-baryonic simulations using basis function expansions. Th…
The imprint of dark matter on the Galactic acceleration field
Arpit Arora, Robyn E. Sanderson, Sukanya Chakrabarti +6
Measurements of the accelerations of stars enabled by time-series extreme-precision spectroscopic observations, from pulsar timing, and from eclipsing binary stars in the Solar Nei…
Spatial Variations of Stellar Elemental Abundances in FIRE Simulations of Milky Way-Mass Galaxies: Patterns Today Mostly Reflect Those at Formation
Russell L. Graf, Andrew Wetzel, Matthew A. Bellardini +1
Spatial patterns of stellar elemental abundances encode rich information about a galaxy's formation history. We analyze the radial, vertical, and azimuthal variations of metals in…