Abstract
The Rice University Suprathermal Ion Detector Experiment regularly observes ion events normally ranging from 250 eV q−1 to 1000 eV q−1 all through the lunar night. These ion events occur most often 2 to 3 days prior to the sunrise terminator. There is also a secondary activity peak 3 to 4 days after local sunset on the Moon. The events are normally of 4 hr or less in duration and the integral flux is 106 ions cm−2 s−1 ster−1. This article discusses the character of these events and presents the preliminary findings of a detailed study begun on this subject.
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Schneider, H.E., Freeman, J.W. Energetic lunar nighttime ion events. The Moon 14, 27–33 (1975). https://doi.org/10.1007/BF00562970
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DOI: https://doi.org/10.1007/BF00562970