The reversal of the solar polar magnetic fields. I - The surface transport of magnetic flux

Details The reversal of the solar polar magnetic fields. I - The surface transport of magnetic flux The reversal of the solar polar magnetic fields. I - The surface transport of magnetic flux

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990soph..127....1w&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 127, May 1990, p. 1-9.

Physics

25

Coronal Loops, Magnetic Field Inversions, Magnetic Flux, Polar Regions, Solar Magnetic Field, Cancellation, Magnetic Field Reconnection, Magnetoactivity

Scientific paper

Some theoretical difficulties confronting the current model of the polar magnetic reversal by cancellation with the flux remnants of decaying active regions are discussed. It is shown that the flux transport equation does not adequately describe the essential physical consequences of the transport of large-scale fields, linked to deep subsurface toroids, over distances comparable with the solar radius. The possibility that subsurface reconnections may release these fields to form U-loops is discussed but it is shown that, in this event, the loops will quickly rise to the surface. Mechanisms whereby the flux may escape through the surface are considered.

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