Waiting time statistics in solar flares

P Giuliani, V Carbone, P Veltri, G Boffetta and A Vulpiani

Physica A: Statistical Mechanics and its Applications, 2000, vol. 280, issue 1, 75-80

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.

Keywords: Solar flares; MHD turbulence; Self-organized criticality (search for similar items in EconPapers)
Date: 2000
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:280:y:2000:i:1:p:75-80

DOI: 10.1016/S0378-4371(99)00620-2

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