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Small-Scale Magnetic Structures and Supergranulation Flows

Published online by Cambridge University Press:  12 April 2016

Zhang Yi ,
Eberhart Jensen  and
Oddbjørn Engvold
Zhang Yi
Affiliation:
Institute of Theoretical Astrophysics, University of Oslo Oslo, Norway
Eberhart Jensen
Affiliation:
Institute of Theoretical Astrophysics, University of Oslo Oslo, Norway
Oddbjørn Engvold
Affiliation:
Institute of Theoretical Astrophysics, University of Oslo Oslo, Norway

Abstract

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Relations between horizontal flow and filigree structure obtained from high-resolution observations (~1/4) are discussed. The magnetic flux elements move with the horizontal flow in the supergranulation network, and as downdrafts are approached both magnetic flux and intensity gradually decrease. Reasons for this disappearance are discussed. If the photosphere actually is a turbulent magneto-plasma, as suggested by the good coupling between the magnetic flux elements and the flow field, the integrated magnetic flux in the background field will exceed the flux in the discrete kilogauss structures.

Type
Session 4. Friendly Debate: The Relation of Quiet Sun to Active Regions
Information
International Astronomical Union Colloquium , Volume 141: The Magnetic and Velocity Fields of Solar Active Regions , 1993 , pp. 232 - 236
Copyright
Copyright © Astronomical Society of the Pacific 1993

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