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Poleward migration of the magnetic neutral line and the reversal of the polar fields on the Sun

โœ Scribed by V. I. Makarov; K. R. Sivaraman

Publisher
Springer
Year
1983
Tongue
English
Weight
316 KB
Volume
85
Category
Article
ISSN
0038-0938

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โœฆ Synopsis

Poleward migration of the magnetic neutral line on the Sun has been computed for the period 1904-1940 using synoptic charts based on Hot observations and the epochs of sign reversal of the solar magnetic field at latitudes 50 ~ to 90 ~ have been determined for this period. During the cycles 16 and 14, a threefold sign reversal took place in the northern and southern hemispheres, respectively. During all the cycles studied both the solar poles were of one polarity for a period ranging from 0.6 to 1.6 years. The poleward drift velocity of the neutral line varies from 4.2 to 8.2 m s-1. The apparent relation between the velocity of the filament bands when three bands are present with the bursts of solar activity is discussed.

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