The Bulletin of The Korean Astronomical Society (천문학회보)
- Volume 37 Issue 2
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- Pages.127.2-127.2
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- 2012
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- 1226-2692(pISSN)
A Study to Derive Energetics of Coronal Magnetic Structures
- Kang, Jihye (School of Space Research, Kyung Hee University) ;
- Magara, Tetsuya (School of Space Research, Kyung Hee University) ;
- Inoue, Satoshi (School of Space Research, Kyung Hee University) ;
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Lee, Hwanhee
(School of Space Research, Kyung Hee University) ;
- An, Jun-Mo (School of Space Research, Kyung Hee University)
- Published : 2012.10.17
Abstract
Space weather prediction related to flares and CMEs is an important issue these days. It is, however, hard to estimate magnetic energy of invisible coronal magnetic structure. The virial theorem is one of the ways to determine the magnetic energy. In this study, we performed a series of MHD simulation of an emerging flux tube and apply the virial theorem to the simulation results and derive energetics of coronal structures. We then analyze real observational data on NOAA 11302 to derive the distributions of physical quantities, such as density, temperature, velocity and magnetic field. We also use knowledge form simulation analysis to estimate the magnetic energy of NOAA 11302.
Keywords