Statistics – Computation
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...210.9103b&link_type=abstract
American Astronomical Society Meeting 210, #91.03; Bulletin of the American Astronomical Society, Vol. 39, p.204
Statistics
Computation
Scientific paper
Many models aim to reproduce the non-linear force free fields in the solar corona; in this particular study, the magnetofrictional relaxation method is tested. This method produces non-linear force free fields based on line-of-sight magnetograms and ground-based Hα images to define the location of a filament, which is represented by a flux rope. The models are tested by comparing the results to TRACE and Hinode X-Ray Telescope (XRT) observations of highly sheared, non-potential loop structures in active regions. For each event, we (1) determine the amount of flux contained in the flux ropes needed to reproduce the observed loops, (2) estimate the current, torsion parameter α, and quasi-separatrix layer distributions, and (3) estimate the relative magnetic helicity and magnetic free energy in the computational domain. This work was supported by NASA LWS grant NNG05GK32G.
Bobra Monica
DeLuca Edward E.
van Ballegooijen Adriaan A.
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