Macroturbulence and microturbulence in the solar photosphere

Details Macroturbulence and microturbulence in the solar photosphere Macroturbulence and microturbulence in the solar photosphere

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985kfnt....1...50s&link_type=abstract

Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 1, Mar.-Apr. 1985, p. 50-52. In Russian.

Computer Science

2

Atmospheric Turbulence, Photosphere, Solar Atmosphere, Abundance, Fraunhofer Lines

Scientific paper

The distribution of large-scale motion velocities in the solar photosphere was obtained by comparing the observed widths and central depths of 200 Fe I lines with calculated values. The Fe I lines were all observed at the center and limb of the solar disk. It is found that: (1) large-scale motions in the solar photosphere are anisotropic; (2) the radial component of macroturbulent velocity decreased from 2.0 to 1.3 km/s in the height interval of 200-450 km; and (3) the tangential component decreased from 2.3 to 1.0 km/s. Microturbulent velocity was found to depend on height, confirming previous results.

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