Multi-wavelength observations and magnetohydrodynamics modeling of coronal mass ejections (MMMCMEs).

Coronal Mass Ejections (CMEs) are huge expulsions of ionised gas, called plasma, from the atmosphere of the Sun into the interplanetary (IP) medium. At times, they propagate toward the Earth, eventually resulting in hazardous space weather conditions. Therefore, being able to forecast both the CME initiations and their trajectories is of crucial relevance for all space-born and ground-based systems that are affected by the space weather. Space observations of the Sun are available since the 70s and give us extraordinary views of our closest star. Apart from amazing images, space observations can be used to quantitatively investigate the initiation and the propagation of these solar storms. Based on these observations several CME initiation models have been developed. However, despite the enormous amount of both observational and theoretical efforts, many aspects are not yet fully understood and the same event can often be explained with more than one model. Therefore, further joint observational and theoretical analysis are still necessary. In this project, coupling multi-wavelength and multi-spacecraft observations of the Sun with numerical magnetohydrodynamics simulations, we aim to improve our understanding of such fascinating phenomenon and to clarify the underlying common mechanisms responsible for solar eruptions. This understanding will eventually improve our capability of delivering accurate space weather forecasts.