Unsolved problem:
some citations:
EIT WAVES ARE |
DIMMINGS CAN BE |
‘Fast magneto-acoustic linear wave’ | ‘slow dimmings’ |
‘piston driven shock’, ’blast wave’ | ‘natural dimmings’ |
‘quasi-circular expanding structure’ | 'coronal dimmings' |
‘plasma compression on separatrix’ | 'chromospheric dimmings' |
‘snow-plow effect during time-varying reconnection’ | 'assymetrical dimmings' |
’nonlinear fast mode...why too slow?’’ | 'fast dimmings' |
‘loop opening’ | ‘stationary dimmming’ |
’expanding footpoints’ | ‘canalized dimmings’ |
‘waves emitted on the separatrix’ | ''dimmings without EIT waves' |
‘stationary fronts’ | 'secondary dimmings' |
‘Transient coronal holes' | 'angularly-restricted dimmings' |
etc... | etc... |
See (Biesecker, D., et al, APJ, 569, 1009, 2002 ) for the first classification of EIT waves by B. Thompson observed in 1997-1998, depending on their probability and magnitude.
See (Hudson S. & Webb D., 1997 AGU Monograph) for the first dimming classification into IV types seen in different wavelengths.
NEMO |
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