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Nonlinear force-free extrapolation: numerical methods and applications View all abstracts by submitter

Stephane Regnier   Submitted: 2007-01-15 03:31

To model 3D coronal magnetic fields, we use different assumptions: the potential field, the linear force-free field and the nonlinear force-free field. The latter assumption requires the knowledge of the three components of the magnetic field at the bottom boundary (photosphere or chromosphere). The recent development of new spectro-polarimetric instruments allows a more accurate and more systematic measurement of the three components of the magnetic field. Before we can make use of the full potential of these instruments, we need to review our knowledge on nonlinear force-free modelling and the solar physics that can be done with those computations. We will summarise the different numerical methods used to determine the coronal magnetic field, and we will review the physical processes and properties derived from the computed magnetic configurations (e.g., magnetic reconnection, energy storage, source of energetic particles).

Authors: Stephane Regnier
Projects: None

Publication Status: To appear in Mem. S. A. It.
Last Modified: 2007-01-15 10:21
Go to main E-Print page  A minimal model of parallel electric field generation in a transversely inhomogeneous plasma  Transition Region Emission and Energy Input to Thermal Plasma During the Impulsive Phase of Solar Flares  Edit Entry  Download Preprint  Delete Entry 

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