FIRE-2 simulations show that stellar radial redistribution scatter saturates at ~2 kpc for stars older than ~3 Gyr, with net orbital changes depending on age and current radius, broadly matching Milky Way observations.
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Local disk galaxies have thin vertical structures with median scale heights of 0.22 kpc and negligible flaring, consistent with the Milky Way thin disk and positively correlated with stellar mass down to 10^7 solar masses.
citing papers explorer
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Radial redistribution of stellar orbits in FIRE simulations of Milky-Way-mass galaxies
FIRE-2 simulations show that stellar radial redistribution scatter saturates at ~2 kpc for stars older than ~3 Gyr, with net orbital changes depending on age and current radius, broadly matching Milky Way observations.
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Vertical Structure of Local Disk Galaxies revealed by DESI Imaging Data
Local disk galaxies have thin vertical structures with median scale heights of 0.22 kpc and negligible flaring, consistent with the Milky Way thin disk and positively correlated with stellar mass down to 10^7 solar masses.