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Invisible sun-spots

Hale, George E. (1922) Invisible sun-spots. Proceedings of the National Academy of Sciences of the United States of America, 8 (7). pp. 168-170. ISSN 0027-8424.

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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.

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Additional Information:Copyright © 1922 by the National Academy of Sciences. Communicated, May 26, 1922.
Issue or Number:7
Record Number:CaltechAUTHORS:HALpnas22
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3960
Deposited By: Tony Diaz
Deposited On:20 Jul 2006
Last Modified:02 Oct 2019 23:08

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