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Recurrent flare/CME events from an emerging flux region

Nitta, Nariaki V.; Hudson, Hugh S.

We report on six recurrent ‘halo’ coronal mass ejections (CMEs) that occurred (in November 2000) during a 60-hour period in clear association with major flares in an active region on the solar disk. The region was undergoing dynamic restructuring due to flux emergence. The flares were not long-decay events (LDEs) in terms of soft X-ray light curve…

A semi-kinetic model of wave-ion interaction in the solar corona

Marsch, E.; Vocks, C.

A semi-kinetic model of the ions in the solar corona is presented, which includes the effects of wave-particle interactions and Coulomb collisions. At the coronal base a spectrum of Alfvén waves is assumed. The spatiotemporal evolution of the spectrum in a 2-D computational domain is determined, taking the absorption of the waves by the particles …