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Waiting time statistics in solar flares

Author

Listed:
  • Giuliani, P
  • Carbone, V
  • Veltri, P
  • Boffetta, G
  • Vulpiani, A

Abstract

Solar flares activity is investigated by looking at the statistics of the waiting times between hard X-ray bursts. It is found that the distribution has a power-law tail which indicates the existence of nontrivial dynamics with long-range correlations. A shell model for MHD turbulence is capable to reproduce the power-law distribution through an identification of the intermittent bursts of dissipation with solar flares. This result suggests that the nonlinear dynamics could play a role more relevant than the particular topology associated with the field configuration. Comparisons with results from models based on self-organized criticality are made.

Suggested Citation

  • Giuliani, P & Carbone, V & Veltri, P & Boffetta, G & Vulpiani, A, 2000. "Waiting time statistics in solar flares," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 280(1), pages 75-80.
    • Handle: RePEc:eee:phsmap:v:280:y:2000:i:1:p:75-80
    DOI: 10.1016/S0378-4371(99)00620-2
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