{
  "id": "1908.01508",
  "version": "v1",
  "published": "2019-08-05T08:15:59.000Z",
  "updated": "2019-08-05T08:15:59.000Z",
  "title": "Mass composition of cosmic rays above 0.1 EeV by the Yakutsk array data",
  "authors": [
    "Stanislav Knurenko",
    "Igor Petrov"
  ],
  "comment": "12 pages, 9 figures, 3 tables, Accepted for publication in Journal of Advances in Space Research",
  "doi": "10.1016/j.asr.2019.07.019",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "The paper presents the results of the longitudinal development of extensive air showers (X$_{max}$) of ultra-high energies and mass composition of cosmic rays. The measurements of X$_{max}$ are based on data from observations of the Cherenkov radiation at the Yakutsk array for the period 1974-2014. The cascade curves of individual showers and the depth of maximum X$_{max}$ were reconstructed over the energy range 10$^{16}$-5.7$\\cdot$10$^{19}$ eV. It is shown that the displacement rate of the parameter dX$_{max}$ / dE in the atmosphere is nonlinear and depends on the energy. Such a feature indicates a change in mass composition, which is confirmed by fluctuations of X$_{max}$ in this energy region. The composition of cosmic rays was determined by interpolation using the QGSJetII-04 model.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2019-08-05T08:15:59.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "mass composition",
      "cosmic rays",
      "yakutsk array data",
      "parameter dx",
      "displacement rate"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "Elsevier"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 12,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}