Quiet Sun Mini-CMEs Observed in STEREO

Details Quiet Sun Mini-CMEs Observed in STEREO Quiet Sun Mini-CMEs Observed in STEREO

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008espm...12.2.86i&link_type=abstract

"12th European Solar Physics Meeting, Freiburg, Germany, held September, 8-12, 2008. Online at http://espm.kis.uni-freiburg.de/,

Physics

Scientific paper

Mini-CMEs are eruptions of cool chromospheric material into the corona seen up to 50 Mm from the source. They are usually accompanied by flare-like brightenings at the onset site. The velocities are typically 20-30 km/s, but may be 5 times faster at onset.
STEREO 171 A observations of a region around a small equatorial coronal hole when it was crossing the disk center are studied over a period of 24 hours. Many events are seen. Events are generally characterized by dark clouds in the 171 images and strong brightening in the chromosphere. Selected events will be discussed with emphasis on the underlying photospheric magnetic field and photospheric flows.

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