RECONSTRUCTION OF THE THREE-DIMENSIONAL CORONAL MAGNETIC FIELD |
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Authors: | Jiao Litao McClymont A. N. MikiĆ Z. |
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Affiliation: | (1) Institute for Astronomy, University of Hawaii, Honolulu, HI, 96822, U.S.A.;(2) Science Applications International Corporation, 10260 Campus Point Drive, San Diego, CA, 92121-1578, U.S.A. |
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Abstract: | Studies of solar flares indicate that the mechanism of flares is magnetic in character and that the coronal magnetic field is a key to understanding solar high-energy phenomena. In our ongoing research we are conducting a systematic study of a large database of observations which includes both coronal structure (from the Soft X-ray Telescope on the Yohkoh spacecraft) and photospheric vector magnetic fields (from the Haleakala Stokes Polarimeter at Mees Solar Observatory). We compare the three-dimensional nonlinear force-free coronal magnetic field, computed from photospheric boundary data, to images of coronal structure. In this paper we outline our techniques and present results for active region AR 7220/7222. We show that the computed force-free coronal magnetic field agrees well with Yohkoh X-ray coronal loops, and we discuss the properties of the coronal magnetic field and the soft X-ray loops. |
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