{
  "id": "1203.1060",
  "version": "v1",
  "published": "2012-03-05T21:28:52.000Z",
  "updated": "2012-03-05T21:28:52.000Z",
  "title": "A universal scaling for short and long gamma-ray bursts: E_{X,iso}-E_{gamma,iso}-E_{pk}",
  "authors": [
    "M. G. Bernardini",
    "R. Margutti",
    "E. Zaninoni",
    "G. Chincarini"
  ],
  "comment": "7 pages, 4 figures, submitted to MNRAS",
  "categories": [
    "astro-ph.HE",
    "astro-ph.CO"
  ],
  "abstract": "The comprehensive statistical analysis of Swift X-ray light-curves, collecting data from six years of operation, revealed the existence of a universal scaling among the isotropic energy emitted in the rest frame 10-10^4 keV energy band during the prompt emission (E_{gamma,iso}), the peak of the prompt emission energy spectrum (E_{pk}), and the X-ray energy emitted in the 0.3-10 keV observed energy band (E_{X,iso}). In this paper we show that this three-parameter correlation is robust and does not depend on our definition of E_{X,iso}. It is shared by long, short, and low-energetic GRBs, differently from the well-known E_{gamma,iso}-E_{pk} correlation. We speculate that the ultimate physical property that regulates the GRB properties is the outflow Lorentz factor.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2012-03-05T21:28:52.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "long gamma-ray bursts",
      "universal scaling",
      "prompt emission energy spectrum",
      "kev energy band",
      "swift x-ray light-curves"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1111/j.1365-2966.2012.21487.x",
      "journal": "Monthly Notices of the Royal Astronomical Society",
      "year": 2012,
      "month": "Sep",
      "volume": 425,
      "number": 2,
      "pages": 1199
    },
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1092951,
      "adsabs": "2012MNRAS.425.1199B"
    }
  }
}