{
  "id": "1905.03656",
  "version": "v1",
  "published": "2019-05-09T14:27:41.000Z",
  "updated": "2019-05-09T14:27:41.000Z",
  "title": "Constraint on the maximum mass of neutron stars using GW170817 event",
  "authors": [
    "Masaru Shibata",
    "Enping Zhou",
    "Kenta Kiuchi",
    "Sho Fujibayashi"
  ],
  "comment": "14 pages, 5 figures. Submitted",
  "categories": [
    "astro-ph.HE",
    "gr-qc",
    "nucl-th"
  ],
  "abstract": "We revisit the constraint on the maximum mass of cold spherical neutron stars coming from the observational results of GW170817. We develop a new framework for the analysis, which is more strict than previous ones, by employing both energy and angular momentum conservation laws as well as solid results of numerical-relativity simulations and of neutron stars in equilibrium. The new analysis shows that the maximum mass of cold spherical neutron stars can be only weakly constrained as $M_{\\rm max} \\alt 2.3M_\\odot$. Our present result gives the following caution for interpreting the future observational results: Oversimplified analyses and/or inappropriate assumptions lead to an inaccurate constraint on the maximum mass of neutron stars.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2019-05-09T14:27:41.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "maximum mass",
      "gw170817 event",
      "cold spherical neutron stars",
      "constraint",
      "spherical neutron stars coming"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}