MHD Modeling of Coronal Large-Amplitude Waves Related to CME Lift-off

Pomoell, J., R. Vainio, and R. Kissmann, MHD Modeling of Coronal Large-Amplitude Waves Related to CME Lift-off, Sol. Phys., 253, 249-261 (2008) (ADS)

The cartoon

(click on the image for a larger version)

Why are flare γ-ray sources not cospatial with flare hard X-ray sources (one of RHESSI's big discoveries)? The explanation given here is in terms of DC electric fields. Maybe this explains why, although it always gives the Archivist butterflies in the stomach to think of an MHD model predicting anything to do with particles! The paper describes 2D simulations and gives interesting discussions of the shock behavior, including dimmings, detached global waves and so forth. Certainly, it is a beautiful cartoon, rendered in a color table reminiscent possibly of Scandinavia.

Date: 2008 November 25

Update: 2019 November 27