{
  "id": "1809.01664",
  "version": "v1",
  "published": "2018-09-05T18:00:02.000Z",
  "updated": "2018-09-05T18:00:02.000Z",
  "title": "Weighing the IMBH candidate CO-0.40-0.22* in the Galactic Centre",
  "authors": [
    "Alessandro Ballone",
    "Michela Mapelli",
    "Mario Pasquato"
  ],
  "comment": "9 pages, 4 figures. To be published on MNRAS",
  "categories": [
    "astro-ph.GA"
  ],
  "abstract": "The high velocity gradient observed in the compact cloud CO-0.40-0.22, at a projected distance of 60 pc from the centre of the Milky Way, has led its discoverers to identify the closeby mm continuum emitter, CO-0.40-0.22*, with an intermediate mass black hole (IMBH) candidate. We describe the interaction between CO-0.40-0.22 and the IMBH, by means of a simple analytical model and of hydrodynamical simulations. Through such calculation, we obtain a lower limit to the mass of CO-0.40-0.22* of few $10^4 \\times \\; M_{\\odot}$. This result tends to exclude the formation of such massive black hole in the proximity of the Galactic Centre. On the other hand, CO-0.40-0.22* might have been brought to such distances in cosmological timescales, if it was born in a dark matter halo or globular cluster around the Milky Way.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-09-05T18:00:02.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "galactic centre",
      "imbh candidate",
      "milky way",
      "intermediate mass black hole",
      "closeby mm continuum emitter"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}