Abundance gradients in the galactic disk

@article{Cui2003AbundanceGI,
  title={Abundance gradients in the galactic disk},
  author={Chenzhou Cui and Yuqing Chen and Gang Zhao and Yongheng Zhao},
  journal={arXiv: Astrophysics of Galaxies},
  year={2003},
  volume={46}
}
The relationship between abundances and orbital parameters for 235 F- and G-type intermediate- and low- mass stars in the Galaxy is analyzed. We found that there are abundance gradients in the thin disk in both radial and vertical directions (-0.116 dex/kpc and -0.309 dex/kpc respectively). The gradients appear to be flatter as the Galaxy evolves. No gradient is found in the thick disk based on 18 thick disk stars. These results indicate that the ELS model is mainly suitable for the evolution… Expand
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