{
  "id": "1312.7440",
  "version": "v2",
  "published": "2013-12-28T14:39:19.000Z",
  "updated": "2014-04-03T08:38:11.000Z",
  "title": "Photo-Disintegration of Heavy Nuclei at the Core of Cen A",
  "authors": [
    "Esha Kundu",
    "Nayantara Gupta"
  ],
  "comment": "Version to appear in JCAP",
  "doi": "10.1088/1475-7516/2014/04/030",
  "categories": [
    "astro-ph.HE",
    "hep-ph"
  ],
  "abstract": "Fermi LAT has detected gamma ray emissions from the core of Cen A. More recently, a new component in the gamma ray spectrum from the core has been reported in the energy range of 4 GeV to tens of GeV. We show that the new component and the HESS detected spectrum of gamma rays from the core at higher energy have possibly a common origin in photo-disintegration of heavy nuclei. Assuming the cosmic rays are mostly Fe nuclei inside the core and their spectrum has a low energy cut-off at 52 TeV in the wind frame moving with a Doppler factor 0.25 with respect to the observer on earth, the cosmic ray luminosity required to explain the observed gamma ray flux above 1 GeV is found to be $1.5\\times 10^{43}$ erg/sec.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2014-04-03T08:38:11.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "heavy nuclei",
      "photo-disintegration",
      "detected gamma ray emissions",
      "cosmic ray luminosity",
      "gamma ray spectrum"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "IOP",
      "journal": "Journal of Cosmology and Astro-Particle Physics",
      "year": 2014,
      "month": "Apr",
      "volume": 2014,
      "number": 4,
      "pages": "030"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1275566,
      "adsabs": "2014JCAP...04..030K"
    }
  }
}