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Analysis of the Helical Kink Stability of Differently Twisted Magnetic Flux Ropes
Magnetic flux ropes (MFRs) are usually considered to be the magnetic structure that dominates the transport of helicity from the Sun into the heliosphere. They entrain a confined plasma within a helically organized magnetic structure and are able to cause geomagnetic activity. The formation, evolution, and twist distribution of MFRs are issues subject to strong debate. Although different twist profiles have been suggested so far, none of them has been thoroughly explored yet. The aim of this work is to present a theoretic ...
Florido-Llinas, M.; Nieves-Chinchilla, T.; Linton, M.;
YEAR: 2020 DOI: 10.1007/s11207-020-01687-z
coronal mass ejections; Flux ropes; Kink instability; magnetic fields; parker solar probe; Solar Probe Plus; Twist distribution
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Near-Sun observations of an F-corona decrease and K-corona fine structure
Remote observations of the solar photospheric light scattered by electrons (the K-corona) and dust (the F-corona or zodiacal light) have been made from the ground during eclipses and from space at distances as small as 0.3 astronomical units to the Sun. Previous observations of dust scattering have not confirmed the existence of the theoretically predicted dust-free zone near the Sun. The transient nature of the corona has been well characterized for large events, but questions still remain (for example, about the initiat ...
Howard, R.; Vourlidas, A.; Bothmer, V.; Colaninno, R.; DeForest, C.; Gallagher, B.; Hall, J.; Hess, P.; Higginson, A.; Korendyke, C.; Kouloumvakos, A.; Lamy, P.; Liewer, P.; Linker, J.; Linton, M.; Penteado, P.; Plunkett, S.; Poirier, N.; Raouafi, N.; Rich, N.; Rochus, P.; Rouillard, A.; Socker, D.; Stenborg, G.; Thernisien, A.; Viall, N.;
YEAR: 2019 DOI: 10.1038/s41586-019-1807-x
Parker Data Used; parker solar probe; Solar Probe Plus
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