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Chromospheric explosions and satellite sunspots∗

Published online by Cambridge University Press:  14 August 2015

David M. Rust
David M. Rust*
Affiliation:
Mount Wilson and Palomar Observatories, Pasadena, Calif., U.S.A.

Abstract

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Observations of the longitudinal component of the photospheric magnetic fields near sunspots imply that surges and Ellerman bombs occur at neutral points in the magnetic fields (i.e. |B|=0) in the chromosphere. The neutral points appear above satellite sunspots, which are defined as polarity reversals (in B||) near the edges of large-spot penumbrae. A series of magnetograph observations shows a point of satellite polarity vanishing during a period of almost continuous surge activity. The lost magnetic energy is comparable to the energy release evidenced by the surge.

Type
Part I: General Development of an Active Region
Information
Symposium - International Astronomical Union , Volume 35: Structure and Development of Solar Active Regions , 1968 , pp. 77 - 84
Copyright
Copyright © Reidel 1968 

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