{
  "id": "1510.00940",
  "version": "v1",
  "published": "2015-10-04T15:08:21.000Z",
  "updated": "2015-10-04T15:08:21.000Z",
  "title": "Ten years of INTEGRAL observations of the hard X-ray emission from SGR 1900+14",
  "authors": [
    "L. Ducci",
    "S. Mereghetti",
    "D. Götz",
    "A. Santangelo"
  ],
  "comment": "Accepted for publication in Astronomy & Astrophysics. 4 pages",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "We exploited the high sensitivity of the INTEGRAL IBIS/ISGRI instrument to study the persistent hard X-ray emission of the soft gamma-ray repeater SGR 1900+14, based on ~11.6 Ms of archival data. The 22-150 keV INTEGRAL spectrum can be well fit by a power law with photon index 1.9 +/- 0.3 and flux F_x = (1.11 +/- 0.17)E-11 erg/cm^2/s (20-100 keV). A comparison with the 20-100 keV flux measured in 1997 with BeppoSAX, and possibly associated with SGR 1900+14, shows a luminosity decrease by a factor of ~5. The slope of the power law above 20 keV is consistent within the uncertainties with that of SGR 1806-20, the other persistent soft gamma-ray repeater for which a hard X-ray emission extending up to 150 keV has been reported.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-10-04T15:08:21.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "integral observations",
      "power law",
      "persistent soft gamma-ray repeater",
      "soft gamma-ray repeater sgr",
      "persistent hard x-ray emission"
    ],
    "publication": {
      "doi": "10.1051/0004-6361/201527029"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1396085
    }
  }
}