{
  "id": "1610.02123",
  "version": "v1",
  "published": "2016-10-07T02:17:04.000Z",
  "updated": "2016-10-07T02:17:04.000Z",
  "title": "Numerical Simulation of Star Formation by the Bow Shock of the Centaurus A Jet",
  "authors": [
    "Carl L. Gardner",
    "Jeremiah R. Jones",
    "Evan Scannapieco",
    "Rogier A. Windhorst"
  ],
  "comment": "16 pages, 10 figures",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "Recent Hubble Space Telescope (HST) observations of the extragalactic radio source Centaurus A (Cen A) display a young stellar population around the southwest tip of the inner filament 8.5 kpc from the Cen A galactic center, with ages in the range of 1-3 Myr. Crockett et al. (2012) argue that the transverse bow shock of the Cen A jet triggered this star formation as it impacted dense molecular cores of clouds in the filament. To test this hypothesis, we perform three-dimensional numerical simulations of induced star formation by the jet bow shock in the inner filament of Cen A, using a positivity preserving WENO method to solve the equations of gas dynamics with radiative cooling. We find that star clusters form inside a bow-shocked molecular cloud when the maximum initial density of the cloud is > 40 H2 molecules/cm^3. In a typical molecular cloud of mass 10^6 M_sun and diameter 200 pc, approximately 20 star clusters of mass 10^3 M_sun are formed, matching the HST images.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-10-07T02:17:04.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "star formation",
      "molecular cloud",
      "extragalactic radio source centaurus",
      "star clusters form inside",
      "inner filament"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 16,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}