MAGNETIC ROPE IN THE MARCH 20, 2000 PROMINENCE ERUPTION

摘要

An evolution of the March 20, 2000 prominence eruption observed in the Ha and 195A EIT was analyzed using the image processing technique. The helical structure of the eruptive prominence (magnetic rope) with a hot core was recognized and the electric current of 3.7 x 10~(10) A inside this rope was estimated. The hot core observation agrees with our recent spec-troscopic observations. It is interesting that the preeruptive filament was located above the X-type pho-tospheric magnetic field. During the eruption the magnetic field changes around this X-type configuration have been found.