Physics
Scientific paper
Jan 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982soph...75..205e&link_type=abstract
Solar Physics, vol. 75, Jan. 1982, p. 205-227. Research supported by the Deutsche Forschungsgemeinschaft.
Physics
9
Extreme Ultraviolet Radiation, Magnetic Field Configurations, Photosphere, Solar Corona, Solar Magnetic Field, Computer Techniques, Data Reduction, Green'S Functions, Magnetometers, Spectroheliographs
Scientific paper
A method is proposed for calculating the coronal magnetic fields of far extending loops using the photospheric magnetic field. The photospheric longitudinal components of the magnetic field measured on a certain day are used to derive the normal components, taking into account the curvature of the solar surface. The magnetic fields are assumed to be potential or force-free fields. The method is applied to magnetic fields observed on September 5 and September 7, 1973; XUV pictures from the NRL spectroheliograph on Skylab taken on these dates are compared to the projected small- and large-scale magnetic field lines. In cases where good agreement is not obtained for the potential fields, force-free fields are calculated and fitted to the observed structures.
Balz P.
Elwert Gerhard
Mueller Knut
Thuer L.
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