{
  "id": "2205.07423",
  "version": "v1",
  "published": "2022-05-16T02:19:12.000Z",
  "updated": "2022-05-16T02:19:12.000Z",
  "title": "Quasi-periodic Accelerations of Energetic Particles during a Solar Flare",
  "authors": [
    "Dong Li",
    "Wei Chen"
  ],
  "comment": "16 pages, 5 figures, accept for publication in ApJL. Comments are welcome",
  "categories": [
    "astro-ph.SR"
  ],
  "abstract": "We report the observation of non-stationary Quasi-Periodic Pulsations (QPPs) in high-energy particles during the impulsive phase of an X4.8 flare on 2002 July 23 (SOL2002-07-23T00:35). The X4.8 flare was simultaneously measured by the Reuven Ramaty High Energy Solar Spectroscopic Imager, Nobeyama Radio Polarimeters, and Nobeyama Radioheliograph. The quasi-period of about 50 s, determined by the wavelet transform, is detected in the Gamma-ray line emission. Using the same method, a quasi-period of about 90 s is found in Gamma-ray continuum, hard X-ray (HXR) and radio emissions during almost the same time. Our observations suggest that the flare QPPs should be associated with energetic ions and nonthermal electrons that quasi-periodically accelerated by the repetitive magnetic reconnection. The different quasi-periods between Gamma-ray line and continuum/HXR/radio emissions indicate an apparent difference in acceleration or propagation between energetic ions and nonthermal electrons of this solar flare.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2022-05-16T02:19:12.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "solar flare",
      "quasi-periodic accelerations",
      "energetic particles",
      "ramaty high energy solar spectroscopic",
      "reuven ramaty high energy solar"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 16,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}