{
  "id": "1002.1864",
  "version": "v2",
  "published": "2010-02-09T19:18:25.000Z",
  "updated": "2010-03-16T15:52:38.000Z",
  "title": "The standard model of star formation applied to massive stars: accretion disks and envelopes in molecular lines",
  "authors": [
    "Eric Keto",
    "Qizhou Zhang"
  ],
  "comment": "Accepted MNRAS",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "We address the question of whether the formation of high-mass stars is similar to or differs from that of solar-mass stars through new molecular line observations and modeling of the accretion flow around the massive protostar IRAS20126+4104. We combine new observations of NH3(1,1) and (2,2) made at the Very Large Array, new observations of CHCN(13-12) made at the Submillimeter Array, previous VLA observations of NH(3,3), NH(4,4), and previous Plateau de Bure observations of C34S(2-1), C34S(5-4), and CHCN(12-11) to obtain a data set of molecular lines covering 15 to 419 K in excitation energy. We compare these observations against simulated molecular line spectra predicted from a model for high-mass star formation based on a scaled-up version of the standard disk-envelope paradigm developed for accretion flows around low-mass stars. We find that in accord with the standard paradigm, the observations require both a warm, dense, rapidly-rotating disk and a cold, diffuse infalling envelope. This study suggests that accretion processes around 10 M stars are similar to those of solar mass stars.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2010-03-16T15:52:38.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "star formation",
      "accretion disks",
      "standard model",
      "massive stars",
      "observations"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1111/j.1365-2966.2010.16672.x",
      "journal": "Monthly Notices of the Royal Astronomical Society",
      "year": 2010,
      "month": "Jul",
      "volume": 406,
      "number": 1,
      "pages": 102
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 845409,
      "adsabs": "2010MNRAS.406..102K"
    }
  }
}