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What helicity can tell us about solar magnetic fields

  • Alexei A. PevtsovEmail author
Article

Abstract

Concept of magnetic/current helicity was introduced to solar physics about 15 years ago. Earlier studies led to discovery of such fundamental properties as hemispheric helicity rule, and role of helicity in magnetic reconnection and solar eruptions. Later, the concept was successfully applied in studies of different solar processes from solar dynamo to flare and CME phenomena. Although no silver bullet, helicity has proven to be a very useful “tool” in answering many still-puzzling questions about origin and evolution of solar magnetic fields. I present an overview of some helicity studies and briefly analyze their findings.

Key words

Sun magnetic fields helicity 

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Copyright information

© Indian Academy of Sciences 2008

Authors and Affiliations

  1. 1.National Solar ObservatorySunspotUSA

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