# Metallicity Gradients in Simulated Disk Galaxies

Source: [Metallicity Gradients in Simulated Disk Galaxies](<https://www.sota2.com/research/paper/68fa2b1a1e209131ce843cd8>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T13:59:16.558Z

Authors: K. Pilkington, B.K. Gibson

Published: 2012-01-31T01:48:26.000Z

## Abstract

The stellar metallicity and abundance ratio gradients from the fiducial late-type galaxy simulation of Stinson et al. (2010) are presented. Over 1-3 scalelengths, gradients are shown to flatten with time, consistent with empirical evidence at high- and low-redshifts. Kinematic effects, including radial migration, though, flatten these intrinsicly steep gradients such that by redshift z=0, the measured gradients of these (now) old stars are flatter than their young counterparts, in contradiction to what is observed locally. Conversely, the stellar \[O/Fe\] gradient is (to first order) robust against migration, remaining fairly flat for both young and old populations today.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1201.6417>)

[PDF](<https://arxiv.org/pdf/1201.6417.pdf>)