[Loops] type II spicule paper

[Stuart D. Bale]

> Do you mean velocity filtration, where the corona is simply particles from the tail of the chromospheric distribution function?  That theory has been largely discredited.

I'm not sure I agree with this…  In any case, the solar wind electron distribution is strongly
controlled by the strahl/suprathermals (and the collisions between the core and protons).
I believe we see good evidence of the ambipolar electric field (at 1 AU, where it is quite weak).

cheers,
Stuart