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Flux Tube Shredding and its Infrared Signature

Published online by Cambridge University Press:  03 August 2017

M. Bünte ,
O. Steiner ,
S.K. Solanki  and
V.J. Pizzo
M. Bünte
Affiliation:
Institute of Astronomy, ETH Zentrum, CH–8092 Zürich, Switzerland
O. Steiner
Affiliation:
Kiepenheuer–Institut für Sonnenphysik, Schöneckstrasse 6, D–7800 Freiburg, FRG
S.K. Solanki
Affiliation:
Institute of Astronomy, ETH Zentrum, CH–8092 Zürich, Switzerland
V.J. Pizzo
Affiliation:
San Juan Capistrano Research Institute, San Juan Capistrano, CA, U.S.A.

Abstract

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The interchange instability of solar magnetic flux tubes and possible stabilization mechanisms are reviewed. Special attention is paid to the influence of magnetic tension forces and the internal atmosphere, both of which were neglected in earlier studies of this instability. It is found that whirl flows with velocities of only 2.2 km s–1 are strong enough to stabilize the flux tubes. However, their absence or the excitation of other instabilities might lead to a shredding of the tubes. The observability of such a scenario in the infrared is briefly discussed.

Keywords

infrared: starsMHDSun: magnetic fields
Type
Part 5: Magnetic Fields and Infrared Magnetometry
Information
Symposium - International Astronomical Union , Volume 154: Infrared Solar Physics , 1994 , pp. 459 - 463
Copyright
Copyright © Kluwer 1994 

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