Kelvin-Helmholtz vortices in Earth's magnetosphere

Numéro d’image : 12540212
Kelvin-Helmholtz vortices in Earth's magnetosphere
Kelvin-Helmholtz vortices in the Earth's magnetosphere, computer model. 3D cut-away view of Earth's magnetosphere, showing the interaction of the solar wind with Earth's magnetic field. The curly features on the boundary layer are the so-called 'Kelvin-Helmholtz' vortices discovered by Cluster II satellites. The vortices originate where two adjacent flows of electrically charged gas (plasma) travel with different speeds. In this case, one of the flows is the heated gas inside the magnetosphere, the other one is the solar wind (a stream of charged particles emitted by the Sun) just outside it. The white dashed arrow shows the trajectory followed by Cluster when the vortices where discovered in 2004.
Licence : Droits gérés
Crédit: Science Photo Library / Hasegawa et al / ESA
Taille de l’image : 6776 px × 5572 px
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