Recent insights on CME deflections at low heights
Fecha
2023Autor
Cremades, Hebe
Costa, Andrea
Cécere, Mariana
Metadatos
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It has been shown that the magnetic structures surrounding coronal mass
ejection (CME) events play a crucial role in their development and evolution
along the first few solar radii. In particular, active regions, coronal holes,
pseudostreamers, and helmet streamers are among the main coronal structures
involved in the deviation of the trajectory of CMEs from their radial direction.
Therefore, comprehensive observational studies along with their theoretical
interpretation, aided by numerical simulations of the early evolution of CMEs,
are the key ingredients to help determine their 3D trajectory in the interplanetary
medium to narrow down the error in the estimation of the time of arrival
of geoeffective events. In this mini-review, we compile the last decade of
theoretical, numerical, and observational research that has shed light on the
causes influencing the early deflection of CMEs away from their otherwise radial
trajectory.
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