{
  "id": "1604.03445",
  "version": "v1",
  "published": "2016-04-12T15:37:22.000Z",
  "updated": "2016-04-12T15:37:22.000Z",
  "title": "General Relativistic Magnetohydrodynamic Simulations of Binary Neutron Star Mergers with the APR4 Equation of State",
  "authors": [
    "Andrea Endrizzi",
    "Riccardo Ciolfi",
    "Bruno Giacomazzo",
    "Wolfgang Kastaun",
    "Takumu Kawamura"
  ],
  "comment": "31 pages, 21 figures, submitted to Classical and Quantum Gravity",
  "categories": [
    "astro-ph.HE",
    "gr-qc"
  ],
  "abstract": "We present new results of fully general relativistic magnetohydrodynamic (GRMHD) simulations of binary neutron star (BNS) mergers performed with the Whisky code. All the models use a piecewise polytropic approximation of the APR4 equation of state (EOS) for cold matter, together with a \"hybrid\" part to incorporate thermal effects during the evolution. We consider both equal and unequal-mass models, with total masses such that either a supramassive NS or a black hole (BH) is formed after merger. Each model is evolved with and without a magnetic field initially confined to the stellar interior. We present the different gravitational wave (GW) signals as well as a detailed description of the matter dynamics (magnetic field evolution, ejected mass, post-merger remnant/disk properties). Our simulations provide new insights into BNS mergers, the associated GW emission and the possible connection with the engine of short gamma-ray bursts (both in the \"standard\" and in the \"time-reversal\" scenarios) and other electromagnetic counterparts.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-04-12T15:37:22.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "general relativistic magnetohydrodynamic simulations",
      "binary neutron star mergers",
      "apr4 equation",
      "magnetic field"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 31,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}