The Physical Origin of Positive Metallicity Radial Gradients in High-redshift Galaxies: Insights from the FIRE-2 Cosmological Hydrodynamic Simulations

The Physical Origin of Positive Metallicity Radial Gradients in High-redshift Galaxies: Insights from the FIRE-2 Cosmological Hydrodynamic Simulations

Using the FIRE-2 cosmological zoom-in simulations, we investigate the temporal evolution of gas-phase metallicity radial gradients of Milky Way–mass progenitors in the redshift range of 0.4 < z < 3. We pay special attention to the occurrence of positive (i.e., inverted) metallicity gradients—w...

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Bibliographic Details
Main Authors: Xunda Sun, Xin Wang, Xiangcheng Ma, Kai Wang, Andrew Wetzel, Claude-André Faucher-Giguère, Philip F. Hopkins, Dušan Kereš, Russell L. Graf, Andrew Marszewski, Jonathan Stern, Guochao Sun, Lei Sun, Keyer Thyme
Format: Article
Language:English
Published: IOP Publishing 2025-01-01
Series:The Astrophysical Journal
Subjects:
Hydrodynamical simulations
Galaxy evolution
Galaxy formation
Interstellar medium
Metallicity
High-redshift galaxies
Online Access:https://doi.org/10.3847/1538-4357/addab5
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