{
  "id": "1608.02847",
  "version": "v1",
  "published": "2016-08-09T15:58:14.000Z",
  "updated": "2016-08-09T15:58:14.000Z",
  "title": "High-energy monitoring of NGC 4593 with XMM-Newton and NuSTAR. X-ray spectral analysis",
  "authors": [
    "F. Ursini",
    "P. -O. Petrucci",
    "G. Matt",
    "S. Bianchi",
    "M. Cappi",
    "B. De Marco",
    "A. De Rosa",
    "J. Malzac",
    "A. Marinucci",
    "G. Ponti",
    "A. Tortosa"
  ],
  "comment": "12 pages, 9 figures, 5 tables. Accepted for publication in MNRAS",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "We present results from a joint Xmm-Newton/NuSTAR monitoring of the Seyfert 1 NGC 4593, consisting of 5x20 ks simultaneous observations spaced by two days, performed in January 2015. The source is variable, both in flux and spectral shape, on time-scales down to a few ks and with a clear softer-when-brighter behaviour. In agreement with past observations, we find the presence of a warm absorber well described by a two-phase ionized outflow. The source exhibits a cold, narrow and constant Fe K alpha line at 6.4 keV, and a broad component is also detected. The broad-band (0.3-79 keV) spectrum is well described by a primary power law with Gamma=1.6-1.8 and an exponential cut-off varying from 90(+40,-20) keV to >700 keV, two distinct reflection components, and a variable soft excess correlated with the primary power law. This campaign shows that probing the variability of Seyfert 1 galaxies on different time-scales is of prime importance to investigate the high-energy emission of AGNs.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-08-09T15:58:14.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "x-ray spectral analysis",
      "high-energy monitoring",
      "primary power law",
      "xmm-newton",
      "clear softer-when-brighter behaviour"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 12,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}