On the microturbulence in the solar photosphere

Details On the microturbulence in the solar photosphere On the microturbulence in the solar photosphere

May 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979soph...62...89k&link_type=abstract

Solar Physics, vol. 62, May 1979, p. 89-92.

Physics

1

Atmospheric Turbulence, Fraunhofer Lines, Photosphere, Solar Atmosphere, Solar Spectra, Atmospheric Models, Convective Flow, Damping, Solar Physics, Spectrometers, Wave Propagation

Scientific paper

The velocity of microturbulent motions in the solar photosphere at the level of formation of weak Fraunhofer lines (height of about 150 km) is found to be 0.1 + or - 0.2 km/s. The observations have been performed with the double-pass spectrometer at Kiev. Apart from thermal motions and damping effects, convective and wave motions are taken into account when calculating the broadening of absorption lines.

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