{
  "id": "astro-ph/0612638",
  "version": "v2",
  "published": "2006-12-21T13:14:34.000Z",
  "updated": "2007-04-03T13:31:30.000Z",
  "title": "Rotating Collapse of Stellar Iron Cores in General Relativity",
  "authors": [
    "Christian D. Ott",
    "Harald Dimmelmeier",
    "Andreas Marek",
    "Hans-Thomas Janka",
    "Burkhard Zink",
    "Ian Hawke",
    "Erik Schnetter"
  ],
  "comment": "19 pages, 6 figures, minor corrections and additions; accepted for publication in the Proceedings of the New Frontiers in Numerical Relativity Conference, AEI Golm, Germany, 2006",
  "journal": "Class.Quant.Grav.24:S139-S154,2007",
  "doi": "10.1088/0264-9381/24/12/S10",
  "categories": [
    "astro-ph",
    "gr-qc"
  ],
  "abstract": "We present results from the first 2+1 and 3+1 simulations of the collapse of rotating stellar iron cores in general relativity employing a finite-temperature equation of state and an approximate treatment of deleptonization during collapse. We compare full 3+1 and conformally-flat spacetime evolution methods and find that the conformally-flat treatment is sufficiently accurate for the core-collapse supernova problem. We focus on the gravitational wave (GW) emission from rotating collapse, core bounce, and early postbounce phases. Our results indicate that the GW signature of these phases is much more generic than previously estimated. In addition, we track the growth of a nonaxisymmetric instability of dominant m = 1 character in two of our models that leads to prolonged narrow-band GW emission at ~ 920-930 Hz over several tens of milliseconds.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2007-04-03T13:31:30.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "04.30.Db",
      "04.25.Dm",
      "97.60.Bw",
      "95.30.Sf"
    ],
    "keywords": [
      "general relativity",
      "rotating collapse",
      "conformally-flat spacetime evolution methods",
      "core-collapse supernova problem",
      "prolonged narrow-band gw emission"
    ],
    "tags": [
      "conference paper",
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 19,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 735362
    }
  }
}