- The hard X-rays in the April 18 event reveal fast electrons
entrained in an expanding CME structure.
- The electrons require in-situ acceleration over extended times.
- These particles are energetically important, because of the low
density at an altitude of 1-2 x 105 km;
are they particles also dynamically important?
- Trapping within the CME offers a mechanism for SEP injection time
delays as a result of driven reconnection in the middle corona.