Dynamics of thin flux tubes in sunspot penumbrae

Details Dynamics of thin flux tubes in sunspot penumbrae Dynamics of thin flux tubes in sunspot penumbrae

Feb 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003padeu..13..101j&link_type=abstract

In: Contributions to NATO Advanced Research Workshop Turbulence, Waves, and Instabilities in the Solar Plasma; Hungary, 16-20 Se

Astronomy and Astrophysics

Astronomy

1

Scientific paper

A model for the fine structure of a sunspot penumbra can be constructed in a form of an ensemble of magnetic flux tubes moving in their own background. As a first step the evolution of a single flux tube in a penumbra of the magnetostatic sunspot model is studied numerically. Properties of such solutions are briefly recalled and some of new results are presented with a qualitative discussion of dynamic features of emerging tubes as compared with the observed behaviour of bright penumbral grains. Limitations of the model and problems related to a quantitative comparison with observations are also commented.

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