{
  "id": "1006.0662",
  "version": "v1",
  "published": "2010-06-03T14:25:32.000Z",
  "updated": "2010-06-03T14:25:32.000Z",
  "title": "Three-Dimensional Structure of the Central Region of NGC7027: A Quest for Trails of High-Velocity Jets",
  "authors": [
    "Jun-ichi Nakashima",
    "Sun Kwok",
    "Yong Zhang",
    "Nico Koning"
  ],
  "comment": "26 pages, 13 figures; accepted for publication in AJ; Full resolution version available at http://web.hku.hk/~junichi/paper/",
  "categories": [
    "astro-ph.SR"
  ],
  "abstract": "We report on the results of a radio interferometric observation of NGC7027 in the CO J=2-1 and 13CO J=2-1 lines. The results are analyzed with morpho-kinematic models developed from the software tool Shape. Our goal is to reveal the morpho-kinematic properties of the central region of the nebula, and to explore the nature of unseen high-velocity jets that may have created the characteristic structure of the central region consisting of molecular and ionized components. A simple ellipsoidal shell model explains the intensity distribution around the systemic velocity, but the high velocity features deviate from the ellipsoidal model. Through the Shape automatic reconstruction model, we found a possible trail of a jet only in one direction, but no other possible holes were created by the passage of a jet.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2010-06-03T14:25:32.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "central region",
      "high-velocity jets",
      "three-dimensional structure",
      "simple ellipsoidal shell model explains",
      "shape automatic reconstruction model"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1088/0004-6256/140/2/490",
      "journal": "The Astronomical Journal",
      "year": 2010,
      "month": "Aug",
      "volume": 140,
      "number": 2,
      "pages": 490
    },
    "note": {
      "typesetting": "TeX",
      "pages": 26,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 856955,
      "adsabs": "2010AJ....140..490N"
    }
  }
}