{
  "id": "1507.03892",
  "version": "v1",
  "published": "2015-07-14T15:29:08.000Z",
  "updated": "2015-07-14T15:29:08.000Z",
  "title": "Search for Gamma-ray Production in Supernovae Located in a Dense Circumstellar Medium with the Fermi-LAT",
  "authors": [
    "A. Franckowiak",
    "K. Murase",
    "E. O. Ofek"
  ],
  "comment": "8 pages, 6 figures; in Proceedings of the 34th International Cosmic Ray Conference (ICRC 2015), The Hague (The Netherlands)",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "Supernovae (SNe) exploding in a dense circumstellar medium (CSM) are predicted to accelerate cosmic rays in collisionless shocks and emit GeV gamma rays and TeV neutrinos on a time scale of several months. Here we summarize the results of the first systematic search for gamma-ray emission in Fermi-LAT data in the energy range from 100 MeV to 300 GeV from a large sample of SNe exploding in dense CSM. We search for a gamma-ray excess at the position of 147 SNe Type IIn in a one year time window after the optical peak time. In addition we combine the closest and optically brightest sources of our sample in a joint likelihood analysis in three different time windows (3, 6 and 12 months). No excess gamma-ray emission is found and limits on the gamma-ray luminosity and the ratio of gamma-ray to optical luminosity are presented.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2015-07-14T15:29:08.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "dense circumstellar medium",
      "gamma-ray production",
      "supernovae",
      "emit gev gamma rays",
      "time window"
    ],
    "tags": [
      "conference paper"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2015arXiv150703892F",
      "inspire": 1382758
    }
  }
}