{
  "id": "1305.5975",
  "version": "v2",
  "published": "2013-05-26T00:11:03.000Z",
  "updated": "2013-09-23T19:08:24.000Z",
  "title": "Super-Massive Stars as a Source of Abundance Anomalies of Proton-Capture Elements in Globular Clusters",
  "authors": [
    "Pavel A. Denissenkov",
    "F. D. A. Hartwick"
  ],
  "comment": "5 pages, 3 figures, accepted for publication in MNRAS Letters",
  "categories": [
    "astro-ph.SR"
  ],
  "abstract": "We propose that the abundance anomalies of proton-capture elements in globular clusters, such as the C-N, Na-O, Mg-Al and Na-F anti-correlations, were produced by super-massive stars with M ~ 10,000 Msun. Such stars could form in the runaway collisions of massive stars that sank to the cluster center as a result of dynamical friction, or via the direct monolithic collapse of the low-metallicity gas cloud from which the cluster formed. To explain the observed abundance anomalies, we assume that the super-massive stars had lost significant parts of their initial masses when only a small mass fraction of hydrogen, Delta X ~ 0.15, was transformed into helium. We speculate that the required mass loss might be caused by the super-Eddington radiation continuum-driven stellar wind or by the diffusive mode of the Jeans instability.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2013-09-23T19:08:24.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "abundance anomalies",
      "super-massive stars",
      "proton-capture elements",
      "globular clusters",
      "super-eddington radiation continuum-driven stellar wind"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1093/mnrasl/slt133",
      "journal": "Monthly Notices of the Royal Astronomical Society",
      "year": 2014,
      "month": "Jan",
      "volume": 437,
      "number": 1
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1235491,
      "adsabs": "2014MNRAS.437L..21D"
    }
  }
}