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Spontaneous Current-layer Fragmentation and Cascading Reconnection in Solar Flares. II. Relation to Observations
- 1.0360845 - ASÚ 2012 RIV US eng J - Journal Article
Bárta, M. - Büchner, J. - Karlický, Marian - Kotrč, Pavel
Spontaneous Current-layer Fragmentation and Cascading Reconnection in Solar Flares. II. Relation to Observations.
Astrophysical Journal. Roč. 730, č. 1 (2011), 47/1-47/6. ISSN 0004-637X. E-ISSN 1538-4357
R&D Projects: GA ČR GAP209/10/1680; GA ČR GA205/09/1705; GA ČR GAP209/10/1706; GA AV ČR IAA300030701; GA ČR(CZ) GA205/09/1469
Grant - others:ESA(XE) MTRN-CT-2006-035484
Institutional research plan: CEZ:AV0Z10030501
Keywords : acceleration of particles * magnetic reconnection * magnetohydrodynamics * solar flares
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics
Impact factor: 6.024, year: 2011
MHD simulation spanning over five scale magnitudes demonstrated multiple levels of the energy cascade in magnetic reconnection: Subsequent tearings in small scale current sheets formed between separating plasmoids. It revealed also further type of fragmentation - it was shown that current layer formed between two merging plasmoids is subjected to plasmoid instability when its aspect ratio reaches the threshold. Hence, also plasmoid coalescence contributes to energy cascade towards small scales.
Permanent Link: http://hdl.handle.net/11104/0198301
Number of the records: 1