{
  "id": "1606.07147",
  "version": "v1",
  "published": "2016-06-23T01:01:51.000Z",
  "updated": "2016-06-23T01:01:51.000Z",
  "title": "Gravitational waves from supermassive stars collapsing to a supermassive black hole",
  "authors": [
    "Masaru Shibata",
    "Yuichiro Sekiguchi",
    "Haruki Uchida",
    "Hideyuki Umeda"
  ],
  "comment": "5 pages, 3 figures, PRD accepted",
  "categories": [
    "astro-ph.HE",
    "gr-qc"
  ],
  "abstract": "We derive the gravitational waveform from the collapse of a rapidly rotating supermassive star (SMS) core leading directly to a seed of a supermassive black hole (SMBH) in axisymmetric numerical-relativity simulations. We find that the peak strain amplitude of gravitational waves emitted during the black-hole formation is $\\approx 5 \\times 10^{-21}$ at the frequency $f \\approx 5$\\,mHz for an event at the cosmological redshift $z=3$, if the collapsing SMS core is in the hydrogen-burning phase. Such gravitational waves will be detectable by space laser interferometric detectors like eLISA with signal-to-noise ratio $\\approx 10$, if the sensitivity is as high as LISA for $f=1$--10\\,mHz. The detection of the gravitational-wave signal will provide a potential opportunity for testing the direct-collapse scenario for the formation of a seed of SMBHs.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-06-23T01:01:51.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "supermassive black hole",
      "gravitational waves",
      "supermassive stars collapsing",
      "space laser interferometric detectors",
      "axisymmetric numerical-relativity simulations"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}