Coronal ``wave'': A signature of the mechanism making CMEs large-scale in the low corona?

Details Coronal ``wave'': A signature of the mechanism making CMEs large-scale in the low corona? Coronal ``wave'': A signature of the mechanism making CMEs large-scale in the low corona?

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007an....328..760a&link_type=abstract

Astronomische Nachrichten, Vol.328, Issue 8, p.760

Astronomy and Astrophysics

Astronomy

22

Sun: Corona, Sun: Coronal Mass Ejections (Cmes), Sun: Magnetic Fields, Sun: Uv Radiation

Scientific paper

We analyse one of the first coronal waves observed by STEREO/EUVI associated with a source region just behind the limb, NOAA 10940. We apply the coronal ``wave'' model proposed by Attrill et al. (2007) to explain the evolution of the observed bright fronts, thereby arguing that the bright fronts and dimmings are due to magnetic reconnections between the expanding CME core and surrounding magnetic structures. We offer a discussion showing that this model provides a mechanism via which CMEs, expanding from a small source region can naturally become large-scale in the low corona.

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