Physics
Scientific paper
Nov 1974
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974soph...39..107t&link_type=abstract
Solar Physics, vol. 39, Nov. 1974, p. 107-119.
Physics
16
Magnetic Field Configurations, Solar Flares, Solar Magnetic Field, Solar Prominences, Astronomical Models, Current Distribution, Magnetic Flux, Particle Acceleration, Periodic Variations, Solar Activity, Solar Corona, Solar Limb
Scientific paper
Study of the longitudinal magnetic field in a number of active limb prominences showing fields in excess of 30 G. The objects fall into three groups: surges, caps, and active-region prominences. There appears to be an upper limit of 150 to 200 G for the field strength in prominences. A model of surges is presented in which a presurge axisymmetric magnetic field is established by a line current in the corona. Particle acceleration in surges is observed, which indicates that V x B is not equal to zero in these objects during periods comparable to the Alfven transit time. The strong fields observed in caps seem to run between parts of active regions in accordance with Hale's law of sunspot group polarities.
Malville Mckim J.
Tandberg-Hanssen Einar
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