{
  "id": "1110.4442",
  "version": "v1",
  "published": "2011-10-20T04:50:17.000Z",
  "updated": "2011-10-20T04:50:17.000Z",
  "title": "Effects of hyperons in binary neutron star mergers",
  "authors": [
    "Yuichiro Sekiguchi",
    "Kenta Kiuchi",
    "Koutarou Kyutoku",
    "Masaru Shibata"
  ],
  "comment": "5 pages, 5 figures, accepted for publication in PRL",
  "categories": [
    "astro-ph.HE",
    "gr-qc",
    "hep-ph",
    "nucl-th"
  ],
  "abstract": "Numerical simulations for the merger of binary neutron stars are performed in full general relativity incorporating both nucleonic and hyperonic finite-temperature equations of state (EOS) and neutrino cooling for the first time. It is found that even for the hyperonic EOS, a hypermassive neutron star is first formed after the merger for the typical total mass $\\approx$ 2.7M\\bigodot, and subsequently collapses to a black hole (BH). It is shown that hyperons play a substantial role in the post-merger dynamics, torus formation around the BH, and emission of gravitational waves (GWs). In particular, the existence of hyperons is imprinted in GWs. Therefore, GW observations will provide a potential opportunity to explore the composition of the neutron star matter.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2011-10-20T04:50:17.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "04.30.-w",
      "04.25.D-",
      "26.60.Kp",
      "97.60.Jd"
    ],
    "keywords": [
      "binary neutron star mergers",
      "neutron star matter",
      "hyperonic finite-temperature equations",
      "hypermassive neutron star",
      "full general relativity incorporating"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1103/PhysRevLett.107.211101",
      "journal": "Physical Review Letters",
      "year": 2011,
      "month": "Nov",
      "volume": 107,
      "number": 21,
      "pages": 211101
    },
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 940599,
      "adsabs": "2011PhRvL.107u1101S"
    }
  }
}