{
  "id": "2310.11492",
  "version": "v1",
  "published": "2023-10-17T18:00:02.000Z",
  "updated": "2023-10-17T18:00:02.000Z",
  "title": "On the natal kick of the black hole X-ray binary H 1705--250",
  "authors": [
    "Cordelia Dashwood Brown",
    "Poshak Gandhi",
    "Yue Zhao"
  ],
  "comment": "MNRAS in press",
  "categories": [
    "astro-ph.HE",
    "astro-ph.SR"
  ],
  "abstract": "When a compact object is formed, an impulse (kick) will be imparted to the system by the mass lost during the core-collapse supernova (SN). A number of other mechanisms may impart an additional kick on the system, although evidence for these natal kicks in black hole systems remains limited. Updated Gaia astrometry has recently identified a number of high peculiar velocity (in excess of Galactic motion) compact objects. Here, we focus on the black hole low-mass X-ray binary H 1705--250, which has a peculiar velocity $\\upsilon_{\\mathrm{pec}}\\,=\\,221^{+101}_{-108}\\,\\mathrm{km}\\,\\mathrm{s}^{-1}$. Using population synthesis to reconstruct its evolutionary history (assuming formation via isolated binary evolution within the Galactic plane), we constrain the properties of the progenitor and pre-SN orbit. The magnitude of a kick solely due to mass loss is found to be $\\sim\\,30\\,\\mathrm{km}\\,\\mathrm{s}^{-1}$, which cannot account for the high present-day peculiar motion. We therefore deduce that the black hole received an additional natal kick at formation, and place limits on its magnitude, finding it to be $\\sim\\,295\\,\\mathrm{km}\\,\\mathrm{s}^{-1}$ (minimum $90\\,\\mathrm{km}\\,\\mathrm{s}^{-1}$). This furthers the argument that these kicks are not limited to neutron stars.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2023-10-17T18:00:02.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "black hole x-ray binary",
      "natal kick",
      "hole systems remains",
      "black hole low-mass x-ray binary",
      "compact object"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}