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《ACTA ASTRONOMICA SINICA》 1994-01
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THE INFLUENCE OF HORIZONTAL MOTION OF PHOTOSPHERIC MATTER ON FILAMENT ACTlVATION AND SOLAR FLARE

Yin Chun-lin (Purple Mountain Astronomical Observatory, Academia Sinica, Nanjing 210008) Wu Gui-ping (Physics Teaching and Research Section, Nanjing Railway Medicine College Nanjing 210009) Xu Ao-ao (Department of Astronomy, NanjinK University, Nanjing 21  
Using numerical calculation the influence on the filament current and the background magnetic field in the active regions by two fundamental models of horizontal motion-shearing motion and convergence motion─in photosphere is discussed. And their physical relationships with filament activation and solar flare areanalyzed as well. The results obtained are as follows: (1) The horizontal motion of photospheric matter plays an important role in filament activation and solar flare drive. (2) The filament activation, as one of the precursors of flare is determained basically by the current increase and evolution of background magnetic field. The complexity of these processes leads to variety of physical mechanism and morphology of flares.
【Fund】: 国家自然科学基金
【CateGory Index】: P182.52
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