{
  "id": "0903.1302",
  "version": "v1",
  "published": "2009-03-06T21:46:36.000Z",
  "updated": "2009-03-06T21:46:36.000Z",
  "title": "Identifications of Five INTEGRAL Sources via Optical Spectroscopy",
  "authors": [
    "Suzanne C. Butler",
    "John A. Tomsick",
    "Sylvain Chaty",
    "Juan A. Zurita Heras",
    "Jerome Rodriguez",
    "Roland Walter",
    "Philip Kaaret",
    "Emrah Kalemci",
    "Mehtap Özbey"
  ],
  "comment": "8 pages, 5 figures, accepted for publication by ApJ",
  "journal": "Astrophys.J.698:502-508,2009",
  "doi": "10.1088/0004-637X/698/1/502",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "The International Gamma-Ray Astrophysics Laboratory (INTEGRAL) is discovering hundreds of new hard X-ray sources, many of which remain unidentified. We report on optical spectroscopy of five such sources for which X-ray observations at lower energies (~0.5-10 keV) and higher angular resolutions than INTEGRAL have allowed for unique optical counterparts to be located. We find that IGR J16426+6536 and IGR J22292+6647 are Type 1 Seyfert active galactic nuclei (with IGR J16426+6536 further classified as a Seyfert 1.5) which have redshifts of z=0.323 and z=0.113, respectively. IGR J18308-1232 is identified as a cataclysmic variable (CV), and we confirm a previous identification of IGR J19267+1325 as a magnetic CV. IGR J18214-1318 is identified as an obscured high mass X-ray binary (HMXB), which are systems thought to have a compact object embedded in the stellar wind of a massive star. We combine Chandra fluxes with distances based on the optical observations to calculate X-ray luminosities of the HMXB and CVs, finding L_(0.3-10 keV)=5e36 erg s^-1 for IGR J18214-1318, L_(0.3-10 keV)=1.3e32 erg s^-1 for IGR J18308-1232, and L_(0.3-10 keV)=6.7e32 erg s^-1 for IGR J19267+1325.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2009-03-06T21:46:36.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "optical spectroscopy",
      "integral sources",
      "identification",
      "international gamma-ray astrophysics laboratory",
      "obscured high mass x-ray binary"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "The Astrophysical Journal",
      "year": 2009,
      "month": "Jun",
      "volume": 698,
      "number": 1,
      "pages": 502
    },
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 814940,
      "adsabs": "2009ApJ...698..502B"
    }
  }
}