{
  "id": "1608.06662",
  "version": "v1",
  "published": "2016-08-23T22:34:56.000Z",
  "updated": "2016-08-23T22:34:56.000Z",
  "title": "Search for gamma-ray emission from AE Aquarii with seven years of FERMI-LAT observations",
  "authors": [
    "Jian Li",
    "Diego F. Torres",
    "Nanda Rea",
    "Emma de Ona Wilhelmi",
    "Alessandro Papitto",
    "Xian Hou",
    "Christopher W. Mauche"
  ],
  "comment": "16 pages, 4 figures, 1 table, Accepted for publication in ApJ",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "AE Aquarii (AE Aqr) is a cataclysmic binary hosting one of the fastest rotating (P$_{\\rm spin}$ = 33.08 s) white dwarfs known. Based on seven years of Fermi Large Area Telescope (LAT) Pass 8 data, we report on a deep search for gamma-ray emission from AE Aqr. Using X-ray observations from ASCA, XMM-Newton, Chandra, Swift, Suzaku, and NuSTAR, spanning 20 years, we substantially extend and improve the spin ephemeris of AE Aqr. Using this ephemeris, we searched for gamma-ray pulsations at the spin period of the white dwarf. No gamma-ray pulsations were detected above 3 $\\sigma$ significance. Neither phase-averaged gamma-ray emission nor gamma-ray variability of AE Aquarii is detected by Fermi-LAT. We impose the most restrictive upper limit to the gamma-ray flux from AE Aqr to date: $1.3\\times 10^{-12}$ erg cm$^{-2}$ s$^{-1}$ in the 100 MeV-300 GeV energy range, providing constraints on models.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-08-23T22:34:56.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "ae aquarii",
      "gamma-ray emission",
      "ae aqr",
      "fermi-lat observations",
      "fermi large area telescope"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 16,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}