Astronomy and Astrophysics – Astronomy
Scientific paper
May 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009spd....40.0901t&link_type=abstract
American Astronomical Society, SPD meeting #40, #9.01; Bulletin of the American Astronomical Society, Vol. 41, p.817
Astronomy and Astrophysics
Astronomy
Scientific paper
The Minimum Current Corona (MCC) model provides a way to estimate stored coronal energy using the number of field lines connecting regions of positive and negative photospheric flux. This information is quantified by the net flux connecting pairs of opposing regions in a connectivity matrix. Changes in the coronal magnetic field, due processes such as magnetic reconnection, manifest themselves as changes in the connectivity matrix. However, the connectivity matrix will also change when sources emerge or submerge through the photosphere, as often happens in active regions. We have developed an algorithm to estimate the changes in flux due to emergence and submergence of magnetic flux sources. These estimated changes must be removed in order to quantify storage and release of magnetic energy in the corona.
The work was supported NASA LWS.
Longcope Dana
Tarr Lucas
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