An Analytic Model for Stellar Metallicity Gradient Residuals in Cold, Phase-Mixed Galactic Disks

arXiv:2606.14850 · astro-ph.GA · Submitted 2026-06-12 · Read on arXiv

astro-ph.GA

Submitted: 2026-06-12

Updated: 2026-09-02

Comments: Updated to version accepted by ApJL

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Metallicity — 47× in this paper · explained in 3 episodes
• Abundance — 4× in this paper · explained in 1 episode
• Degeneracy — 3× in this paper · explained in 3 episodes
• Velocity Dispersion — 3× in this paper · explained in 2 episodes
• Action Space — 1× in this paper · explained in 1 episode

Sources

• Tree-ring structure of Galactic bar resonance in N-body simulations
• Nexae in caverna: the secular evolution of disks via collectively excited, transient spiral structure
• Interstellar Medium-Driven Orbital Transport -- I. Radial Heating and Migration
• Milky Way Mapper decoded abundances -- II: From patterns to paths
• Orbital migration and heating history of the Galactic disc: a transition between the bimodal discs

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