{
  "id": "0907.1874",
  "version": "v1",
  "published": "2009-07-10T17:28:13.000Z",
  "updated": "2009-07-10T17:28:13.000Z",
  "title": "Elementary Energy Release Events in Solar Flares",
  "authors": [
    "Siming Liu",
    "Lyndsay Fletcher"
  ],
  "comment": "12 pages, 2 figures, Accepted by ApJL",
  "journal": "Astrophys.J.701:L34-L38,2009",
  "doi": "10.1088/0004-637X/701/1/L34",
  "categories": [
    "astro-ph.SR",
    "astro-ph.HE"
  ],
  "abstract": "Most theoretical investigations of particle acceleration during solar flares cannot be applied to observations for detailed study of the time evolution. We propose a phenomenological model for turbulence evolution and stochastic particle acceleration that links observations to the energy release and particle acceleration through two coefficients characterizing particle interactions with turbulent electromagnetic fields. In the linear regime the particle distribution does not affect the turbulence energy cascade. It is shown that electron acceleration critically depends on the intensity of small-scale turbulence and an impulsive non-thermal component only appears near the peak of the gradually evolving turbulence intensity. The model naturally reproduces the soft-hard-soft pattern of hard X-ray pulses, and we attribute the observed change in flux and spectral index correlation from the rise to decay phase of some pulses to changes in the background plasma. Detailed modeling of well-observed individual events will probe the energy release processes.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2009-07-10T17:28:13.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "solar flares",
      "elementary energy",
      "electron acceleration critically depends",
      "stochastic particle acceleration",
      "coefficients characterizing particle interactions"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "The Astrophysical Journal",
      "year": 2009,
      "month": "Aug",
      "volume": 701,
      "number": 1
    },
    "note": {
      "typesetting": "TeX",
      "pages": 12,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 825437,
      "adsabs": "2009ApJ...701L..34L"
    }
  }
}