Coronal Magnetic Eruptions: Observations, Models, and Techniques

Multi-spacecraft measurements of Coronal Mass Ejections (CMEs) have made advancements in understanding their complex magnetic configurations and structures in interplanetary space. Analysis techniques for single-spacecraft measurements were initially adapted, however, they fall short in fully leveraging the potential of multi-spacecraft data. Recent efforts have aimed to rectify this limitation by developing specialized analysis methods tailored explicitly for multi-spacecraft measurements. These advancements allow for a more comprehensive understanding of CMEs' structures, propagation, and aging.

Moreover, the existing models and theories used to interpret CME data often rely on assumptions that might oversimplify the complexities of these phenomena. To address this, newer models and numerical simulations are being developed to test and validate these assumptions, ensuring a more accurate representation of CME properties. In addition, mathematical tools capable of deriving the intricate topological properties inherent in CME structures in IP space need to be developed.

One crucial aspect highlighted in this presentation is the necessity for dedicated multi-spacecraft missions specifically designed to capture the variation scales of magnetic structures within CMEs. This emphasizes the importance of optimal spacecraft formations that can provide optimal measurements, that allows for a better understanding of the magnetic configuration and internal structures of CMEs.