{
  "id": "0906.0899",
  "version": "v1",
  "published": "2009-06-04T12:48:12.000Z",
  "updated": "2009-06-04T12:48:12.000Z",
  "title": "Departures from LTE for neutral Li in late-type stars",
  "authors": [
    "K. Lind",
    "M. Asplund",
    "P. S. Barklem"
  ],
  "comment": "4 pages, 3 figures, accepted by A&A",
  "categories": [
    "astro-ph.SR"
  ],
  "abstract": "We perform non-LTE calculations of lithium in late-type stars for a wide range of stellar parameters, including quantum mechanical cross-sections for collisions with neutral hydrogen and the negative hydrogen ion. Non-LTE abundance corrections for the lithium resonance line at 670.7nm and the subordinate line at 610.3nm, are calculated using 1D MARCS model atmospheres spanning a grid Teff=[4000,8000]K, log(g)=[1.0,5.0], and [Fe/H]=[0.0,-3.0], for lithium abundances in the range A(Li)=[-0.3,4.2]. The competing effects of ultraviolet over-ionization and photon losses in the resonance line govern the behaviour of the non-LTE effects with stellar parameters and lithium abundance. The size and sign of the non-LTE abundance corrections vary significantly over the grid for the 670.7nm line, but are typically positive and below 0.15dex for the 610.3nm, line. The new collisional data play a significant role in determining the abundance corrections.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2009-06-04T12:48:12.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "late-type stars",
      "neutral li",
      "non-lte abundance corrections",
      "marcs model atmospheres spanning",
      "abundance corrections vary"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1051/0004-6361/200912221",
      "journal": "Astronomy and Astrophysics",
      "year": 2009,
      "month": "Aug",
      "volume": 503,
      "number": 2,
      "pages": 541
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 822256,
      "adsabs": "2009A&A...503..541L"
    }
  }
}