{
  "id": "1412.8361",
  "version": "v1",
  "published": "2014-12-29T15:02:20.000Z",
  "updated": "2014-12-29T15:02:20.000Z",
  "title": "Star-forming galaxies as the origin of the IceCube PeV neutrinos",
  "authors": [
    "Xiao-Chuan Chang",
    "Ruo-Yu Liu",
    "Xiang-Yu Wang"
  ],
  "comment": "8 pages, 6 figures",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "Star-forming galaxies, due to their high star-formation rates and hence large number of supernova remnants therein, are huge reservoirs of cosmic rays (CRs). These CRs collide with the gas in the galaxy and produce high-energy neutrinos through $pp$ collisions. In this paper, we calculate the neutrino production efficiency in star-forming galaxies by considering realistic galaxy properties, such as the gas density and galactic wind properties in star-forming galaxies. To calculate the accumulated neutrino flux, we use the infrared luminosity functions of star-forming galaxies obtained by Herschel PEP/HerMES survey recently. The intensity of CRs producing PeV neutrinos in star-forming galaxies is normalized with the observed CR flux at EeV, assuming that supernovae remnants or hypernova remnants in star-forming galaxies can accelerate protons to EeV energies. Our calculations show that the accumulated neutrino emission produced by CRs in star-forming galaxies can account for the flux and spectrum of the sub-PeV/PeV neutrinos under reasonable assumption about the CR confinement time in these galaxies.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-12-29T15:02:20.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "star-forming galaxies",
      "icecube pev neutrinos",
      "considering realistic galaxy properties",
      "cr confinement time",
      "produce high-energy neutrinos"
    ],
    "publication": {
      "doi": "10.1088/0004-637X/805/2/95",
      "journal": "The Astrophysical Journal",
      "year": 2015,
      "month": "Jun",
      "volume": 805,
      "number": 2,
      "pages": 95
    },
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1335638,
      "adsabs": "2015ApJ...805...95C"
    }
  }
}