{
  "id": "2101.00189",
  "version": "v1",
  "published": "2021-01-01T08:00:28.000Z",
  "updated": "2021-01-01T08:00:28.000Z",
  "title": "Possible bump structure of cosmic ray electrons unveiled by AMS-02 data",
  "authors": [
    "Pei-pei Zhang",
    "Bing-qiang Qiao",
    "Wei Liu",
    "Shu-wang Cui",
    "Qiang Yuan",
    "Yi-qing Guo"
  ],
  "comment": "8 pages, 3 figures",
  "categories": [
    "astro-ph.HE"
  ],
  "abstract": "The precise measurement of the positron spectrum by AMS-02 reveals a sharp dropoff above $\\sim 284$ GeV. However, the AMS-02 electron spectrum shows a power-law from $\\sim 40$ GeV to $\\sim 1$ TeV without significant features. We propose that the difference of spectral features between electrons and positrons indicates the existence of a nearby source component of primary electrons. Taking into account the observational results of the positron excess, the spectral softenings of cosmic ray protons and helium nuclei, and the energy-dependences of the large-scale anisotropies of cosmic rays, we suggest that the scenario of supernova remnant origin of cosmic rays with non-negligible contribution from a nearby source can successfully account for most of the observations of cosmic rays below PeV energies. The Geminga pulsar and its past supernova remnant might be a proper candidate of the nearby source.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2021-01-01T08:00:28.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "cosmic ray electrons",
      "bump structure",
      "cosmic ray protons",
      "past supernova remnant",
      "supernova remnant origin"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 8,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}