A Quantitative Method to Optimise Magnetic Field Line Fitting of Observed Coronal Loops

Details A Quantitative Method to Optimise Magnetic Field Line Fitting of Observed Coronal Loops A Quantitative Method to Optimise Magnetic Field Line Fitting of Observed Coronal Loops

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003soph..218...29c&link_type=abstract

Solar Physics, v. 218, Issue 1, p. 29-40 (2003).

Physics

19

Scientific paper

Many authors use magnetic-field models to extrapolate the field in the solar corona from magnetic data in the photosphere. The accuracy of such extrapolations is usually judged qualitatively by eye, where a less judgemental quantitative approach would be more desirable. In this paper, a robust method for obtaining the best fit between a theoretimagnetic field and intensity observations of coronal loops on the solar disk will be presented. The method will be applied to Yohkoh data using a linear force-free field as an illustration. Any other theoretimodel for the magnetic field can be used, provided there is enough freedom in the model to optimize the fit.

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