Interplanetary evolution of fast CMEs-shocks and type II burst emission

Physics – Plasma Physics

Scientific paper

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[7513] Solar Physics, Astrophysics, And Astronomy / Coronal Mass Ejections, [7534] Solar Physics, Astrophysics, And Astronomy / Radio Emissions, [7851] Space Plasma Physics / Shock Waves, [7924] Space Weather / Forecasting

Scientific paper

Fast CMEs driving interplanetary shocks are one of the most important space weather phenomena. We present an analytic model to study the evolution of these events in the interplanetary medium. The model shows that the CME/shock evolution is constituted by three phases: 1) driving, 2) decoupling; and 3) decaying. We compare the model's predictions with some study cases using coronograph, type II radio burst emissions and in-situ data. We found a good agreement between the model and the observational data. The model reproduces the shock-ICME evolution and the type II drift spectra.

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