{
  "id": "1006.0692",
  "version": "v2",
  "published": "2010-06-03T16:42:11.000Z",
  "updated": "2010-08-27T19:17:37.000Z",
  "title": "On the O/H, Mg/H, Si/H and Fe/H Gas and Dust Abundance Ratios in Galactic and Extragalactic H II Regions",
  "authors": [
    "Antonio Peimbert",
    "Manuel Peimbert"
  ],
  "comment": "22 pages, 6 figures, submitted to The Astrophysical Journal. Rewritten for clarity (following the recomendations by the ApJ referee)",
  "categories": [
    "astro-ph.GA",
    "astro-ph.CO"
  ],
  "abstract": "We derive the Mg/H ratio in the Orion nebula and in 30 Doradus. We also derive the O/H and the Fe/O ratios in the extremely metal poor galaxy SBS 0335-052. We estimate the dust depletions of Mg, Si, and Fe in Galactic and extragalactic H II regions. Based on these depletions we estimate the fraction of O atoms embedded in dust as a function of the O/H ratio. We find an increasing depletion of O with increasing O/H. The O depletion increases from about 0.08 dex, for the metal poorest H II regions known, to about 0.12 dex, for metal rich H II regions. This depletion has to be considered when comparing nebular with stellar abundances.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2010-08-27T19:17:37.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "dust abundance ratios",
      "fe/h gas",
      "extragalactic",
      "extremely metal poor galaxy sbs"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1088/0004-637X/724/1/791",
      "journal": "The Astrophysical Journal",
      "year": 2010,
      "month": "Nov",
      "volume": 724,
      "number": 1,
      "pages": 791
    },
    "note": {
      "typesetting": "TeX",
      "pages": 22,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 856942,
      "adsabs": "2010ApJ...724..791P"
    }
  }
}