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We present a multiwavelength study of the 2005 September 13 eruption fromNOAA 10808 that produced total four flares and two fast coronal mass ejections(CMEs) within 1.5 hours. Our primary attention is paid to the fact that theseeruptions occurred in close succession in time, and that all of them werelocated along an S-shaped magnetic polarity inversion line (PIL) of the activeregion. In our analysis, (1) the disturbance created by the first flarepropagated southward along the PIL to cause a major filament eruption that ledto the first CME and the associated second flare underneath. (2) The first CMEpartially removed the overlying magnetic fields over the northern Delta spot toallow the third flare and the second CME. (3) The ribbon separation during thefourth flare would indicate reclosing of the overlying field lines opened bythe second CME. It is thus concluded that this series of flares and CMEs areinterrelated to each other via magnetic reconnections between the expandingmagnetic structure and the nearby magnetic fields. These results complementprevious works made on this event with the suggested causal relationship amongthe successive eruptions.

Successive Solar Flares and Coronal Mass Ejections on 2005 September 13 from Noaa Ar 10808