Characterization of localized turbulence in plasma extended systems

R.R. Rosa, A.S. Sharma and J.A. Valdivia

Physica A: Statistical Mechanics and its Applications, 1998, vol. 257, issue 1, 509-514

Abstract: We have analysed, for the first time, the high-resolution X-ray images of the solar corona, obtained by the Yohkoh Mission, as non-linear extended systems. To quantify the spatio-temporal complexity in this extended system, we use an asymmetric spatial fragmentation parameter computed from a matrix representing an image. Choosing different spatial scales on the same image, wave numbers are computed from the intensity contours and this yields fragmentation spectra. The dynamics and spectra of the fine structures of the contours can suggest the origin of the observed fragmentation to be a localized weak turbulence process occurring in an evolving coronal active region.

Date: 1998
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:257:y:1998:i:1:p:509-514

DOI: 10.1016/S0378-4371(98)00184-8

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