Statistics – Computation
Scientific paper
Feb 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990azh....67...65k&link_type=abstract
Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 67, Jan.-Feb. 1990, p. 65-75. In Russian.
Statistics
Computation
3
Computational Astrophysics, Magnetic Field Configurations, Solar Magnetic Field, Astronomical Spectroscopy, Chromosphere, Photosphere
Scientific paper
The solution to the inverse problem of active region magnetic field structure using fibril orientation is examined, focusing on the case where the field of the direction of the vector tau has singular points. In this case, the integrating factor for the field line equation in the z = 0 plane cannot be solved using the method of Kulikova et al. (1989). However, model representations of the field produce a solution which is accurate up to a factor common to the total distribution of the case. Nodes, foci, and saddle points are observed in the chromosphere. It is suggested that these singular points play an important role in constructing the large-scale structure of the magnetic field. Also, it is shown that the small-scale field is associated with surface currents. Good agreement is found between calculations and measurements of the longitudinal field on the photosphere of the active region HR 16862-16864.
Filippov B. P.
Kulikova G. N.
Molodenskij M. M.
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