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Statistical Properties of Magnetic Separators in Model Active Regions

Published online by Cambridge University Press:  25 May 2016

B. T. Welsch  and
D. W. Longcope
B. T. Welsch
Affiliation:
Department of Physics, Montana State University - Bozeman, Bozeman, MT 59717 − 3840, U.S.A.
D. W. Longcope
Affiliation:
Department of Physics, Montana State University - Bozeman, Bozeman, MT 59717 − 3840, U.S.A.

Abstract

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“Transient brightenings” (or “microflares”) regularly deposit 1027 ergs of energy in the solar corona, and account for perhaps 20% of the active corona's power (Shimizu 1995). We assume these events correspond to episodes of magnetic reconnection along magnetic separators in the solar corona. Using the techniques of magnetic charge topology, we model active region fields as arising from normally distributed collections of “magnetic charges”, point-like sources/sinks of flux (or field lines). Here, we present statistically determined separator (X-ray loop) lengths, derived from first principles. We are in the process of statistical calculations of heating rates due to reconnection events along many separators.

Type
Part II: Posters
Information
Symposium - International Astronomical Union , Volume 195: Highly Energetic Physical Processes and Mechanisms , 2000 , pp. 443 - 444
Copyright
Copyright © Astronomical Society of the Pacific 2000 

References

Longcope, D. W. 1996, Solar Phys., 169, 91.Google Scholar
Shimizu, T. 1995, PASJ, 47, 251.Google Scholar
Welsch, B. T., & Longcope, D. W. 1999, ApJ, 522, 1117.Google Scholar