| Presenter: | Boris Ioshpa |
| Affiliation: | IZMIRAN |
| Title: | Fine structure stochastic properties of the solar magnetic field |
| Authors: | V. Chertoprud, B. Ioshpa, V. Obridko |
| Form: | poster |
| Abstract: | Fine structure ($\sim$10") stochastic properties of the magnetic field of the Sun are analyzed in the framwork of a two-dimensional model of the fractal Brownian process (mean square of the field magnitude difference in two points ranging by the distance $D$ is proportional to $D^{2H}$). Using digitized solar magnetograms with 2" resolution the standard deviation $s$ of the magnetic field and the power index $H$ corresponding to the different levels of $|B|$ were determined. It was established that the transition from the background magnetic field to the active region magnetic fields occurs in the field region 25--50 G. The dependence of the $H$ power index from the magnetic field magnitude is determined. The $H$ power index for the background magnetic field is essentially lesser than for the active region fields. The relation between the results obtained and some fundamental properties of the solar plasma behavior (turbulence, convection) is discussed. |
| Session: | 3. Nature of solar magnetic fields as revealed by polarimetry |
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