Sizes of turbulence elements in the solar atmosphere

Astronomy and Astrophysics – Astronomy

Scientific paper

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Atmospheric Turbulence, Solar Atmosphere, Solar Spectra, Absorption Spectra, Fraunhofer Lines, Iron, Photosphere, Vortices

Scientific paper

The sizes of turbulent vortices at different heights in the solar atmosphere are determined. It is assumed that the sizes of turbulent vortices are distributed in accordance with a Poisson law while their velocities obey a Gaussian law. The number of turbulence elements occurring along a length having an optical depth of unity in the continuum, the root-mean-square velocity, and the correlation length are found from well-known spectral relationships and a described calculation procedure. It is found that the average size of turbulent vortices in the solar atmosphere decreases with height from 670 to 440 km, while their root-mean-square velocity is constant and equal to 1.7 km/s.

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