Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...278..279c&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 278, no. 1, p. 279-287
Astronomy and Astrophysics
Astrophysics
6
Ambiguity, Elimination, Magnetohydrodynamics, Photosphere, Polarity, Solar Magnetic Field, Boundary Conditions, Divergence, Spline Functions
Scientific paper
The existing methods for the removal of the 180 degree ambiguity in the sign of the observed transverse photospheric magnetic field present some inherent-computational and/or intrinsic limitations. In this work we propose and demonstrate suitable procedures for the identification and elimination of the residual 180 degree ambiguity in the sign of Bperpendicular observed fields, that is of the ambiguity which is not removed by the various methods in use. These procedures are tested on the case of force-free magnetic field configurations for which exact analytical solutions to compare with exist.
Cuperman Sami
Li Jiying
Semel Meir
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