A Dynamo Scenario|Observational Constraints on Dynamo Theory

Details A Dynamo Scenario|Observational Constraints on Dynamo Theory A Dynamo Scenario|Observational Constraints on Dynamo Theory

Dec 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996soph..169..265z&link_type=abstract

Solar Physics, Volume 169, Issue 2, pp.265-276

Physics

10

Scientific paper

In this paper, the term dynamo refers to the complex of physical mechanisms that cause solar magnetic activity in all its manifestations. Properties of that dynamo are inferred from observational indications to fit them into a scenario. Properties and models of the manifestations of strong magnetic field are briefly summarized, together with their formation during the emergence of ω-shaped loops from the toroidal flux system in the interface below the convection zone. The evolution of magnetic concentrations and the flux removal from the atmosphere, with indications for flux retraction, are considered. Then the weak (INF) fields are discussed, together with the role of upward floating LI- shaped loops in the removal of toroidal flux. Finally features of strong and weak fields are fitted into a scenario for a cyclic dynamo, in which the regeneration of the poloidal field of proper sign relies on the cancellation of magnetic flux in the surface transport interpreted as reconnection, followed by retraction of reconnected loops.

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