IAFE   05512
INSTITUTO DE ASTRONOMIA Y FISICA DEL ESPACIO
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Manifestation of coronal mass ejections near Earth: A review
Autor/es:
DASSO SERGIO; DEMOULIN PASCAL; MASIAS-MEZA JIMMY; JANVIER MIHO; LANABERE VANINA; RODRIGUEZ LUCIANO
Lugar:
Pasadena, California
Reunión:
Congreso; 42nd COSPAR Scientific Assembly; 2018
Institución organizadora:
Committee on Space Research (COSPAR)
Resumen:
Coronal Mass Ejections (CMEs) are launched from the Sun, as a result of magnetic instabilities, carrying away a huge amount of magnetic flux and helicity. Interplanetary CMEs (ICMEs) are their manifestations observed further away in the heliosphere. ICMEs contain different plasma and magnetic field properties, compared with those of the ambient solar wind. From the large number of observed ICMEs in the past years, we significantly increased our knowledge on several of their properties such as: their global 3D shape, the identification of the composing sub-structures, the amount of magnetohydrodynamical quantities transported, as well as how the plasma and magnetic field are typically distributed inside them. In the present talk we will present a general review of these aspects of ICMEs. In particular we will focus on the total amount of magnetic flux and helicity ejected by CMEs from the Sun along a solar cycle, and on plasma and magnetic properties of their shock/sheath/flux-rope/wake. These results can help to understand their interaction with the ambient solar wind and with planetary magnetic environments. They are particularly crucial for a better understanding of the Sun-Earth coupling.