Comparative study examines kinematics of CMEs from flares and filaments, highlighting differences in shock association.
We report on a study of the kinematics of coronal mass ejections (CMEs) and their shocks depending on the type of solar source: active region flares and filament eruptions. Kinematics of the two group of events near the Sun and their evolution in the corona and inner heliosphere are studied. We compiled a list of CMEs with interplanetary counterparts that originated from close to the disk center. The study includes 45 disk center events of solar cycle 24 (2009–2019). Out of those, 30 events are flare-associated and 15 are filament-associated. Among the 30 flare-associated events, 8 are also associated with a shock. Among the 15 filament-associated events only one event is associated with a shock. We measure the CME flux rope (FR) speed along with the shock speed and the associated reconnection flux (RC). We found that the CME speed and the RC flux are about 30% more for shock-associated events compared without a shock. Similarly, the CME speed and the RC flux are about 50% more for flare-associated events compared to the filament-associated events.
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Sindhuja et al. (2024) studied this question.
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