{
  "id": "1108.0721",
  "version": "v1",
  "published": "2011-08-03T00:55:48.000Z",
  "updated": "2011-08-03T00:55:48.000Z",
  "title": "Abundance gradients in the galactic disk",
  "authors": [
    "Chenzhou Cui",
    "Yuqin Chen",
    "Gang Zhao",
    "Yongheng Zhao"
  ],
  "comment": "10 pages, 2 figures. Published in Science in China (Series G) vol 46(1), 2003",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "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 of the thin disk, while the SZ model is more suitable for the evolution of the thick disk. Additionally, these results indicate that in-fall and out-flow processes play important roles in the chemical evolution of the Galaxy.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2011-08-03T00:55:48.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "abundance gradients",
      "galactic disk",
      "out-flow processes play important roles",
      "thin disk",
      "thick disk stars"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1360/03ys9001",
      "journal": "Science in China A: Mathematics",
      "year": 2003,
      "volume": 46,
      "number": 1,
      "pages": 1
    },
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 922074,
      "adsabs": "2003ScChA..46....1C"
    }
  }
}