{
  "id": "2012.02608",
  "version": "v1",
  "published": "2020-12-04T14:11:21.000Z",
  "updated": "2020-12-04T14:11:21.000Z",
  "title": "Perturbing the accretion flow onto a supermassive black hole by a passing star",
  "authors": [
    "Petra Suková",
    "Michal Zajaček",
    "Vojtěch Witzany",
    "Vladimír Karas"
  ],
  "comment": "18 pages, 8 figures, 2 tables, to appear in the Proceedings of RAGtime 20-22",
  "categories": [
    "astro-ph.HE",
    "astro-ph.GA"
  ],
  "abstract": "The close neighbourhood of a supermassive black hole contains not only accreting gas and dust, but also stellar-sized objects like stars, stellar-mass black holes, neutron stars, and dust-enshrouded objects that altogether form a dense nuclear star-cluster. These objects interact with the accreting medium and they perturb the otherwise quasi-stationary configuration of the accretion flow. We investigate how the passages of a star can influence the black hole gaseous environment with GRMHD 2D and 3D simulations. We focus on the changes in the accretion rate and the associated emergence of outflowing blobs of plasma.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2020-12-04T14:11:21.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "accretion flow",
      "passing star",
      "supermassive black hole contains",
      "black hole gaseous environment",
      "stellar-mass black holes"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 18,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}