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Solar Arcade Flarings as Magnetodynamic Process of Mass and Energy Shedding from Energized Magnetic Regions

  • Y. Uchida (a1), S. Hirose (a1), S. Cable (a1), S. Uemura (a1), K. Fujisaki (a1), M. Torii (a1) and S. Morita (a1)...

Abstract

Prototypes of magnetic actions in producing and shedding the X-ray-emitting high temperature plasmas in various astrophysical objects are witnessed in the spatially-resolved form on the Sun by the Solar X-ray Satellite “Yohkoh”. The most prominent of those are arcade flarings seen as powerful arcade flares in active regions with strong magnetic field. Larger scale fainter X-ray arcade formation observed at high latitudes, shedding a large amount of mass and energy as CME's (coronal mass ejections) also belongs to this category. Since some features found by the new observation by Yohkoh are incompatible with the so-called “classical model of arcade flarings”, we advance an alternative model based on the quadruple magnetic sources in the photosphere.

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Copyright

References

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Fujisaki, K., et al. 1997, submitted to Publ. Astron. Soc. Japan.
Hirose, S., et al., 1997, in preparation.
Martin, S., in Dynamics of Quiescent Prominences, (Springer Lecture Note on Physics) 363, pp. l44.
Sturrock, P.A., 1966, Nature , 221, 695.
Tsuneta, S., et al., 1992, Publ. Astron. Soc. Japan , 44, L6369.
Uchida, Y., 1980, in Skylab Workshop, Solar Flares , ed. Sturrock, P.A. (University of Colorado Press), p67, and p110.
Uchida, Y., 1996, Adv. Space Res. , 17, (4/5)1928
Uchida, Y., et al., 1997, submitted to Publ. Astron. Soc. Japan.

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