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Magnetic field line braiding in the solar atmosphere

Magnetic field line braiding in the solar atmosphere

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Original languageEnglish
Pages (from-to)77-81
Number of pages5
JournalProceedings of the International Astronomical Union
Volume12
Issue numberS327
Early online date12 Sep 2016
DOIs
StatePublished - Oct 2016

Abstract

Using a magnetic carpet as model for the near surface solar magnetic field we study its effects on the propagation of energy injectected by photospheric footpoint motions. Such a magnetic carpet structure is topologically highly non-trivial and with its magnetic nulls exhibits qualitatively different behavior than simpler magnetic fields. We show that the presence of magnetic fields connecting back to the photosphere inhibits the propagation of energy into higher layers of the solar atmosphere, like the solar corona. By applying certain types of footpoint motions the magnetic field topology is is greatly reduced through magnetic field reconnection which facilitates the propagation of energy and disturbances from the photosphere.

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