{
  "id": "2106.04867",
  "version": "v1",
  "published": "2021-06-09T07:46:44.000Z",
  "updated": "2021-06-09T07:46:44.000Z",
  "title": "The Lithium Abundances from the Large Sky Area Multi-object Fiber Spectroscopic Telescope Medium-resolution Survey. I. The Method",
  "authors": [
    "Qi Gao",
    "Jian-Rong Shi",
    "Hong-Liang Yan",
    "Chun-Qian Li",
    "Tian-Yi Chen",
    "Jing- Hua Zhang",
    "Shuai Liu",
    "Tai-Sheng Yan",
    "Xiao-Jin Xie",
    "Ming-Yi Ding",
    "Yong Zhang",
    "Yong-Hui Hou"
  ],
  "comment": "16 pages, 11 figures",
  "categories": [
    "astro-ph.SR",
    "astro-ph.GA"
  ],
  "abstract": "Standard stellar evolution model predicts a severe depletion of lithium (Li) abundance during the first dredge-up process (FDU). Yet a small fraction of giant stars are still found to preserve a considerable amount of Li in their atmospheres after FDU. Those giants are usually identified as Li-rich by a widely used criterion, A(Li) $ > 1.5$\\,{\\it dex}. A large number of works dedicated to search for and investigate this minority of the giant family, and the amount of Li-rich giants has been largely expanded, especially in the era of big data. In this paper, we present a catalog of Li-rich giants found from the Large Sky Area Multi-Object Fiber Spectroscopic Telescope (LAMOST) survey with Li abundances derived from a template matching method developed for LAMOST low-resolution spectra. The catalog contains $10,535$ Li-rich giants with Li abundances from $\\sim 1.5$\\,{\\it dex} to $\\sim 4.9$\\,{\\it dex}. We also confirm that the ratio of Li-rich phenomenon among giant stars is about one percent, or for a more expression, $1.29\\%$ from our statistically important sample. This is the largest Li-rich giant sample ever reported to date, which significantly exceeds amount of all the reported Li-rich giants combined. The catalog will help the community to better understand the Li-rich phenomenon in giant stars.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2021-06-09T07:46:44.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "large sky area multi-object fiber",
      "area multi-object fiber spectroscopic telescope",
      "sky area multi-object fiber spectroscopic",
      "multi-object fiber spectroscopic telescope medium-resolution",
      "fiber spectroscopic telescope medium-resolution survey"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 16,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}