Physics
Scientific paper
Jun 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987kfnt....3q...3g&link_type=abstract
Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 3, May-June 1987, p. 3-6. In Russian.
Physics
1
Matter (Physics), Solar Magnetic Field, Sunspots, Velocity Distribution, Magnetic Signatures, Plasma Dynamics, Radial Velocity
Scientific paper
The relationship between the magnetic and velocity fields in sunspots at their early stages of development is studied using observational data obtained with the vector magnetograph of the Saian Observatory. When the maps of the longitudinal components of the magnetic and radial velocity fields are superimposed, the maximum velocity in the sunspot region corresponds mainly to the magnetic-field zero line. The dependence of the radial velocity on the slope of the magnetic field vector to the line of sight is investigated. The velocity and magnetic field vectors are reconstructed for the leading sunspot of the group SD 135/1984. The results indicate that two systems of motion exist; the material within the sunspot moves across the magnetic field lines while the sunspot umbra contains a region in which the material moves in the same direction as the magnetic field.
Grigor'ev Victor M.
Pevtsov Alexander
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