{
  "id": "1604.00414",
  "version": "v1",
  "published": "2016-04-01T21:31:30.000Z",
  "updated": "2016-04-01T21:31:30.000Z",
  "title": "Detection of extragalactic CF+ toward PKS1830-211 -- Chemical differentiation in the absorbing gas",
  "authors": [
    "S. Muller",
    "K. Kawaguchi",
    "J. H. Black",
    "T. Amano"
  ],
  "comment": "Accepted for publication in A&A Letters",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "We report the first extragalactic detection of CF+, the fluoromethylidynium ion, in the z=0.89 absorber toward PKS1830-211. We estimate an abundance of ~3E-10 relative to H2 and that ~1% of fluorine is captured in CF+. The absorption line profile of CF+ is found to be markedly different from that of other species observed within the same tuning, and is notably anti-correlated with CH3OH. On the other hand, the CF+ profile resembles that of [C I]. Our results are consistent with expected fluorine chemistry and point to chemical differentiation in the column of absorbing gas.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-04-01T21:31:30.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "chemical differentiation",
      "absorbing gas",
      "first extragalactic detection",
      "fluoromethylidynium ion",
      "expected fluorine chemistry"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}