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pro vyhledávání: '"Leake James E."'
We develop a general description of how information propagates through a magnetohydrodynamic (MHD) system based on the method of characteristics and use that to formulate numerical boundary conditions (BCs) that are intrinsically consistent with the
Externí odkaz:
http://arxiv.org/abs/2311.02281
The thickness of current sheets is extremely important, especially as it relates to the onset of fast magnetic reconnection. Onset determines how much magnetic free energy can build up in a field before it is explosively released. This has implicatio
Externí odkaz:
http://arxiv.org/abs/2307.13825
Publikováno v:
Journal of Space Weather and Space Climate, Vol 7, p A17 (2017)
Solar flares and coronal mass ejections (CMEs) are among the most energetic events in the solar system, impacting the near-Earth environment. Flare productivity is empirically known to be correlated with the size and complexity of active regions. Sev
Externí odkaz:
https://doaj.org/article/7eda23303cbc4856a3b7ae5c8d22eba5
Results from 2.5D and 3D studies of the onset and development of the tearing instability are presented, using high fidelity resistive MHD simulations. A limited parameter study of the strength of the reconnecting field (or shear angle) was performed.
Externí odkaz:
http://arxiv.org/abs/2202.04761
Magnetic flux ropes (MFRs) rising buoyantly through the Sun's convection zone are thought to be subject to viscous forces preventing them from rising coherently. Numerous studies have suggested that MFRs require a minimum twist in order to remain coh
Externí odkaz:
http://arxiv.org/abs/2101.01020
Akademický článek
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Autor:
Linton, Mark G., Antiochos, Spiro K., Barnes, Graham, Fan, Yuhong, Liu, Yang, Lynch, Benjamin J., Afanasyev, Andrey N., Arge, C. Nick, Burkepile, Joan, Cheung, Mark C.M., Dahlin, Joel T., DeRosa, Marc L., de Toma, Giuliana, DeVore, C. Richard, Fisher, George H., Henney, Carl J., Jones, Shaela I., Karpen, Judith T., Kazachenko, Maria D., Leake, James E., Török, Tibor, Welsch, Brian T.
Publikováno v:
In Advances in Space Research June 2023
Relative magnetic helicity is a gauge invariant quantity suitable for the study of the magnetic helicity content of heliospheric plasmas. Relative magnetic helicity can be decomposed uniquely into two gauge invariant quantities, the magnetic helicity
Externí odkaz:
http://arxiv.org/abs/1809.03765
Alfv\'enic waves have been proposed as an important energy transport mechanism in coronal loops, capable of delivering energy to both the corona and chromosphere and giving rise to many observed features, of flaring and quiescent regions. In previous
Externí odkaz:
http://arxiv.org/abs/1712.06171
The physical conditions that determine whether or not solar active regions (ARs) produce strong flares and coronal mass ejections (CMEs) are not yet well understood. Here we investigate the association between electric-current neutralization, magneti
Externí odkaz:
http://arxiv.org/abs/1708.04411