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A test of the electromagnetic theory of the hydrogen vortices surrounding sun-spots

Hale, George E. (1925) A test of the electromagnetic theory of the hydrogen vortices surrounding sun-spots. Proceedings of the National Academy of Sciences of the United States of America, 11 (11). pp. 691-696. ISSN 0027-8424. http://resolver.caltech.edu/CaltechAUTHORS:HALpnas25

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Abstract

The extensive fields of force shown by the spectroheliograph in the hydrogen atmosphere surrounding sun-spots have been explained in two different ways: (1) as true hydrodynamical vortices, resembling great tornadoes, and (2) as electromagnetic phenomena, in which charged particles moving in the solar atmosphere are constrained by the magnetic fields in the spots to follow their lines of force. The principles involved in the electromagnetic theory have been applied to the explanation of the terrestrial aurora by Stormer, who has also developed this theory for the case of sun-spots.(1)


Item Type:Article
Additional Information:Copyright © 1925 by the National Academy of Sciences. Communicated October 1, 1925. I am indebted to Messrs. Nicholson and Ellerman and to Mrs. Humason for valuable assistance in connection with this paper.
Record Number:CaltechAUTHORS:HALpnas25
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:HALpnas25
Alternative URL:http://www.pnas.org/content/vol11/issue11/
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3952
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:20 Jul 2006
Last Modified:26 Dec 2012 08:57

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