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Sunspot changes following proton flares

Published online by Cambridge University Press:  14 August 2015

Constance Sawyer
Constance Sawyer*
Affiliation:
Institute for Telecommunication Sciences and Aeronomy, Environmental Science Services Administration, Boulder, Colo., U.S.A.

Abstract

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Although the area of some sunspot groups declines suddenly after a flare that produces energetic protons, other groups show a delayed or gradual decline, or continue to grow for several days after the flare. The mean area of sunspot groups that produced flares with polar-cap absorption declines gradually and continuously, beginning within a day after the flare.

Type
Part VII: Proton Flare Project (PFP)
Information
Symposium - International Astronomical Union , Volume 35: Structure and Development of Solar Active Regions , 1968 , pp. 543 - 550
Copyright
Copyright © Reidel 1968 

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