The supergranule velocity field

Details The supergranule velocity field The supergranule velocity field

Sep 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980soph...67..211g&link_type=abstract

Solar Physics, vol. 67, Sept. 1980, p. 211-228.

Physics

28

Solar Granulation, Solar Magnetic Field, Velocity Distribution, Velocity Measurement, Atomic Spectra, Dynamo Theory, Iron, Polarization Characteristics, Solar Physics, Vertical Motion

Scientific paper

An investigation of supergranule motions indicated horizontal velocities with peak values of 0.36 km/s as observed in Fe I 8688 A. The supergranule vertical velocities near the disk center in Fe I 8688 have rms values of 0.01 km/s or less, allowing for the five-minute oscillations, granule motions, and detector drift. Downward velocities below 0.1 km/s in regions of strong magnetic field measured with unpolarized light were attributed to the higher downflow inside the elements and are not associated with supergranule motions.

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