Počet záznamů: 1

Spontaneous Current-layer Fragmentation and Cascading Reconnection in Solar Flares. II. Relation to Observations

  1. 1.
    0360845 - ASU-R 2012 RIV US eng J - Článek v odborném periodiku
    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
    Grant CEP: 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 ostatní:ESA(XE) MTRN-CT-2006-035484
    Výzkumný záměr: CEZ:AV0Z10030501
    Klíčová slova: acceleration of particles * magnetic reconnection * magnetohydrodynamics * solar flares
    Kód oboru RIV: BN - Astronomie a nebeská mechanika, astrofyzika
    Impakt faktor: 6.024, rok: 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.
    Trvalý link: http://hdl.handle.net/11104/0198301