Astronomy and Astrophysics – Astrophysics
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sh41a15w&link_type=abstract
American Geophysical Union, Spring Meeting 2001, abstract #SH41A-15
Astronomy and Astrophysics
Astrophysics
7500 Solar Physics, Astrophysics, And Astronomy, 7509 Corona, 7524 Magnetic Fields
Scientific paper
To predict observables in active regions -- loop lengths & orientations, soft X-ray (SXR) emission distributions, and heating rates -- from first principles, we investigate the interaction of a point source of magnetic flux, or ``test flux,'' and a model bipolar active region, composed of two oppositely-signed, Gaussian distributions of ``field flux.'' We vary the placement of the test flux, the separation of the field flux distributions, and the ratio of test flux to field flux. Employing statistical techniques, we calculate average separations between the test flux and field fluxes for each configuration, which we use to derive model-dependent loop orientations and lengths. We also determine the average power generated by magnetic reconnection between the test flux and field fluxes. We then combine these results to generate a model-dependent prediction of the spatial distribution of SXR emission. Finally, via whole-active-region averaging, we find heating rates of the order of magnitude of the coronal demand.
Longcope Dana Warfield
Welsch Brian Thomas
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