B. Helicity & CMEs
Relevance: Quest I, Campaign 2 – The effects of solar variability on
the solar atmosphere and heliosphere
The story
behind the headline:
•Twisted magnetic flux tubes emerge to form solar filaments
•Twist related to CMEs
•Twisted coronal structures (sigmoids) observed correlated
with
eruptions
•Earth-directed (halo) CMEs relate to disturbances at Earth
•Filament cavities è flux rope at 1 AU
•Filament cavities might arise from streamers è STEREO