{
  "id": "2212.10891",
  "version": "v1",
  "published": "2022-12-21T10:02:06.000Z",
  "updated": "2022-12-21T10:02:06.000Z",
  "title": "Numerical-relativity simulation for tidal disruption of white dwarfs by a supermassive black hole",
  "authors": [
    "Alan Tsz Lok Lam",
    "Masaru Shibata",
    "Kenta Kiuchi"
  ],
  "categories": [
    "astro-ph.HE",
    "gr-qc"
  ],
  "abstract": "We study tidal disruption of white dwarfs in elliptic orbits with the eccenticity of $\\sim 1/3$--$2/3$ by a non-spinning supermassive black hole of mass $M_{\\rm BH}=10^5M_\\odot$ in fully general relativistic simulations targeting the extreme mass-ratio inspiral leading eventually to tidal disruption. Numerical-relativity simulations are performed by employing a suitable formulation in which the weak self-gravity of white dwarfs is accurately solved. We reconfirm that tidal disruption occurs for white dwarfs of the typical mass of $\\sim 0.6M_\\odot$ and radius $\\approx 1.2 \\times 10^4$\\,km near the marginally bound orbit around a non-spinning black hole with $M_{\\rm BH}\\alt 4\\times 10^5M_\\odot$.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-12-21T10:02:06.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "white dwarfs",
      "supermassive black hole",
      "numerical-relativity simulation",
      "general relativistic simulations targeting",
      "mass-ratio inspiral leading"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}