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Published July 15, 1922 | public
Journal Article Open

Invisible sun-spots

Abstract

The vortex hypothesis, proposed in 1908, assumes that a sun-spot resembles a vast tornado in which electrified particles, due to ionization in the solar atmosphere, are rapidly whirled. The invariable presence of a magnetic field, caused by the revolving charges, confirms this view,(1) which is also supported by various other results of observation with the spectrograph and spectroheliograph.

Additional Information

Copyright © 1922 by the National Academy of Sciences. Communicated, May 26, 1922.

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August 21, 2023
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