{
  "id": "1705.09260",
  "version": "v1",
  "published": "2017-05-25T17:01:19.000Z",
  "updated": "2017-05-25T17:01:19.000Z",
  "title": "The NuSTAR View of the Seyfert 2 Galaxy NGC 4388",
  "authors": [
    "N. Kamraj",
    "E. Rivers",
    "F. A. Harrison",
    "M. Brightman",
    "M. Balokovic"
  ],
  "comment": "5 pages, 2 figures. Accepted for publication in ApJ",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "We present analysis of NuSTAR X-ray observations in the 3-79 keV energy band of the Seyfert 2 galaxy NGC 4388, taken in 2013. The broadband sensitivity of NuSTAR, covering the Fe K$\\alpha$ line and Compton reflection hump, enables tight constraints to be placed on reflection features in AGN X-ray spectra, thereby providing insight into the geometry of the circumnuclear material. In this observation, we found the X-ray spectrum of NGC 4388 to be well described by a moderately absorbed power law with non-relativistic reflection. We fit the spectrum with phenomenological reflection models and a physical torus model, and find the source to be absorbed by Compton-thin material (N$_{H} = (6.5\\pm0.8)\\times10^{23}$ cm$^{-2}$) with a very weak Compton reflection hump (R $<$ 0.09) and an exceptionally large Fe K$\\alpha$ line (EW $= 368^{+56}_{-53}$ eV) for a source with weak or no reflection. Calculations using a thin-shell approximation for the expected Fe K$\\alpha$ EW indicate that an Fe K$\\alpha$ line originating from Compton-thin material presents a possible explanation.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2017-05-25T17:01:19.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "galaxy ngc",
      "nustar view",
      "weak compton reflection hump",
      "compton-thin material",
      "x-ray spectrum"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}