{
  "id": "1407.6284",
  "version": "v1",
  "published": "2014-07-23T16:22:52.000Z",
  "updated": "2014-07-23T16:22:52.000Z",
  "title": "Stellar tidal disruption candidates found by cross-correlating the ROSAT Bright Source Catalogue and XMM-Newton observations",
  "authors": [
    "Ildar Khabibullin",
    "Sergey Sazonov"
  ],
  "comment": "Accepted for publication in MNRAS; 13 pages, 9 figures, 4 tables",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "We performed a systematic search for stellar tidal disruption events (TDE) by looking for X-ray sources that were detected during the ROSAT All Sky Survey and faded by more than an order of magnitude over the next two decades according to XMM-Newton serendipitous observations. Besides a number of highly variable persistent X-ray sources (like active galactic nuclei and cataclysmic variables), we found three sources that are broadly consistent with the TDE scenario: 1RXS J114727.1+494302, 1RXS J130547.2+641252, and 1RXS J235424.5-102053. A TDE association is also acceptable for the fourth source, 1RXS J112312.7+012858, but an AGN origin cannot be ruled out either. This statistics implies a TDE rate of $ \\sim 3\\times 10^{-5} $ yr$ ^{-1} $ per galaxy in the Universe within $z\\sim 0.18$, which is broadly consistent with the estimates of the TDE rate in the more local Universe obtained previously.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-07-23T16:22:52.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "rosat bright source catalogue",
      "stellar tidal disruption candidates",
      "xmm-newton observations",
      "variable persistent x-ray sources"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1093/mnras/stu1491",
      "journal": "Monthly Notices of the Royal Astronomical Society",
      "year": 2014,
      "month": "Oct",
      "volume": 444,
      "number": 2,
      "pages": 1041
    },
    "note": {
      "typesetting": "TeX",
      "pages": 13,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1307392,
      "adsabs": "2014MNRAS.444.1041K"
    }
  }
}