{
  "id": "1307.7276",
  "version": "v3",
  "published": "2013-07-27T16:28:42.000Z",
  "updated": "2013-09-13T10:43:46.000Z",
  "title": "Expectations for extreme-mass-ratio bursts from the Galactic Centre",
  "authors": [
    "C. P. L. Berry",
    "J. R. Gair"
  ],
  "comment": "22 pages, 5 figures, 2 appendices. Minor changes to reflect published version",
  "journal": "MNRAS 435(4):3521-3540 (2013)",
  "doi": "10.1093/mnras/stt1543",
  "categories": [
    "astro-ph.HE",
    "gr-qc"
  ],
  "abstract": "When a compact object on a highly eccentric orbit about a much more massive body passes through periapsis it emits a short gravitational wave signal known as an extreme-mass-ratio burst (EMRB). We consider stellar mass objects orbiting the massive black hole (MBH) found in the Galactic Centre. EMRBs provide a novel means of extracting information about the MBH; an EMRB from the Galactic MBH could be highly informative regarding the MBH's mass and spin if the orbital periapsis is small enough. However, to be a useful astronomical tool EMRBs must be both informative and sufficiently common to be detectable with a space-based interferometer. We construct a simple model to predict the event rate for Galactic EMRBs. We estimate there could be on average ~2 bursts in a two year mission lifetime for LISA. Stellar mass black holes dominate the event rate. Creating a sample of 100 mission realisations, we calculate what we could learn about the MBH. On average, we expect to be able to determine the MBH mass to ~1% and the spin to ~0.1 using EMRBs.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2013-09-13T10:43:46.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "galactic centre",
      "extreme-mass-ratio burst",
      "stellar mass black holes dominate",
      "expectations",
      "event rate"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "Monthly Notices of the Royal Astronomical Society",
      "year": 2013,
      "month": "Nov",
      "volume": 435,
      "number": 4,
      "pages": 3521
    },
    "note": {
      "typesetting": "TeX",
      "pages": 22,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1244958,
      "adsabs": "2013MNRAS.435.3521B"
    }
  }
}