{
  "id": "2108.08039",
  "version": "v1",
  "published": "2021-08-18T08:42:06.000Z",
  "updated": "2021-08-18T08:42:06.000Z",
  "title": "Investigating the true nature of three hard X-ray sources",
  "authors": [
    "Manuela Molina",
    "Angela Malizia",
    "Nicola Masetti",
    "Loredana Bassani",
    "Angela Bazzano",
    "Anthony J. Bird",
    "Mariateresa Fiocchi",
    "Eliana Palazzi",
    "Pietro Ubertini"
  ],
  "comment": "11 pages, 8 figures, accepted for publication on MNRAS",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "Many of the new high energy sources discovered both by INTEGRAL/IBIS and Swift/BAT have been characterised thanks to extensive, multi-band follow-up campaigns, but there are still objects whose nature remains to be asserted. In this paper we investigate the true nature of three high energy sources, IGR J12134-6015, IGR J16058-7253 and Swift J2037.2+4151, employing multiwavelength data from the NIR to the X-rays. Through Gaia and ESO-VLT measurements and through Swift/XRT X-ray spectral analysis, we re-evaluate the classification for IGR J12134-6015, arguing that the source is a Galactic object and in particular a Cataclysmic Variable. We were able to confirm, thanks to NuSTAR observations, that the hard X-ray emission detected by INTEGRAL/IBIS and Swift/BAT from IGR J16058-7253 is coming from two Seyfert 2 galaxies which are both counterparts for this source. Through optical and X-ray spectral analysis of Swift J2037.2+4151 we find that this source is likely part of the rare and peculiar class of Symbiotic X-ray binaries and displays flux and spectral variability as well as interesting spectral features, such as a blending of several emission lines around the iron line complex.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2021-08-18T08:42:06.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "hard x-ray sources",
      "true nature",
      "high energy sources",
      "swift/xrt x-ray spectral analysis",
      "symbiotic x-ray binaries"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}