Wind spacecraft observations of solar impulsive electron events associated with solar type III radio bursts

摘要

We present Wind spacecraft observations of solar impulsive electron events associated with locally generated Langmuir waves during solar type III radio bursts. The solar impulsive electrons had energies from ～600 eV to greater than 300 keV. Local Langmuir emissions associated with these fluxes generally coincided with the arrival of 2-12 keV electrons. A survey of 27 events over 1 yr shows that there were few occurrences of electron distributions (～96 s averaged) that were unstable to Langmuir waves and none that had a substantial growth rate(>3 X 10~-2 s~-1) or endured for more than 96 s.