{
  "id": "1004.1118",
  "version": "v2",
  "published": "2010-04-07T15:59:49.000Z",
  "updated": "2010-05-05T15:07:01.000Z",
  "title": "Antimatter spectra from a time-dependent modeling of supernova remnants",
  "authors": [
    "M. Kachelriess",
    "S. Ostapchenko",
    "R. Tomas"
  ],
  "comment": "4 pages, 4 eps figures; v2: results for time-dependent magnetic field added",
  "journal": "J.Phys.Conf.Ser.259:012092,2010",
  "doi": "10.1088/1742-6596/259/1/012092",
  "categories": [
    "astro-ph.HE",
    "hep-ph"
  ],
  "abstract": "We calculate the energy spectra of cosmic rays (CR) and their secondaries produced in a supernova remnant (SNR), taking into account the time-dependence of the SNR shock. We model the trajectories of charged particles as a random walk with a prescribed diffusioncoefficient, accelerating the particles at each shock crossing. Secondary production by CRs colliding with gas is included as a Monte Carlo process. We find that SNRs produce less antimatter than suggested previously: The positron/electron ratio and the antiproton/proton ratio are a few percent and few $\\times 10^{-5}$, respectively. Both ratios do not rise with energy.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2010-05-05T15:07:01.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "98.70.Sa"
    ],
    "keywords": [
      "supernova remnant",
      "antimatter spectra",
      "time-dependent modeling",
      "monte carlo process",
      "energy spectra"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "Journal of Physics Conference Series",
      "year": 2010,
      "month": "Nov",
      "volume": 259,
      "number": 1,
      "pages": "012092"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 851087,
      "adsabs": "2010JPhCS.259a2092K"
    }
  }
}