Image Details
Caption: Figure A2.
Multiepoch SDO/AIA 171 Å observations illustrating the sequence of 10 successive coronal mass ejection (CME) source-region eruptions (CME1–CME9) from NOAA Active Regions 13664 and 13668 during 2024 May 8–11. Each panel shows the low-coronal morphology at the onset of eruption, highlighting the evolving magnetic architecture, including bright postflare arcades, twisted coronal loops, and filament-channel structures associated with each CME. The timestamps at the top of each panel indicate the observation time (UT) at the initiation of the respective event. The blue solid lines mark the inferred primary orientation or propagation axis of the erupting magnetic structure, serving as a proxy for the projected direction and tilt of the pre-eruptive flux system. The sequence reveals progressive structural complexity and repeated destablization of the same active region, suggesting the buildup and release of magnetic energy through successive reconnection episodes.
© 2026. The Author(s). Published by the American Astronomical Society.