A model for elemental coronal flux loops

Details A model for elemental coronal flux loops A model for elemental coronal flux loops

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003soph..216...27b&link_type=abstract

Solar Physics, v. 216, Issue 1, p. 27-40 (2003).

Physics

12

Scientific paper

The photosphere possesses many small, intense patches of magnetic flux. Each of these patches (or sources) is connected magnetically through the corona to several sources of opposite polarity. An elemental flux loop consists of all of the flux joining one such source to another. We find that each source is connected to twenty other sources, on average, and that the typical flux and diameter of elemental loops in the corona are 1016 Mx and 200 km; there are approximately 17 separators for each source. We also model a typical large-scale coronal loop consisting of many elemental loops and determine its complex internal topology. Each upright null lies at the end of about 22 separatrices, which tend to be clustered together in trunk-like structures, analogous to river-valleys in a geographical contour map. Prone nulls correspond to saddle points, while their spines are analogous to watersheds.

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