{
  "id": "1910.07311",
  "version": "v1",
  "published": "2019-10-16T12:35:59.000Z",
  "updated": "2019-10-16T12:35:59.000Z",
  "title": "Toward a robust inference method for the likelihood of low-luminosity gamma-ray bursts to be progenitors of ultrahigh-energy cosmic rays correlating with starburst galaxies",
  "authors": [
    "Luis A. Anchordoqui",
    "Claire Mechmann",
    "Jorge F. Soriano"
  ],
  "comment": "5 pages revtex, 1 figure",
  "categories": [
    "astro-ph.HE",
    "hep-ph"
  ],
  "abstract": "Very recently, the Pierre Auger Collaboration reported a $4.5\\sigma$ correlation between the arrival directions of the highest energy cosmic rays and nearby starburst galaxies. The cosmic rays producing the anisotropy signal have been proposed to originate in low-luminosity gamma-ray bursts (llGRBs). On the basis of the well-justified assumption that at redshift $z<0.3$ the host metallicity is a good indicator of the llGRB production rate, we show that the association of llGRBs and the starbursts correlating with Auger data is excluded at the 95% confidence level.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2019-10-16T12:35:59.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "low-luminosity gamma-ray bursts",
      "ultrahigh-energy cosmic rays correlating",
      "robust inference method",
      "starburst galaxies",
      "likelihood"
    ],
    "note": {
      "typesetting": "RevTeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}