Abstract
A strong correlation between intense, broad‐band 10‐105 Hz plasma waves and 1‐6 keV electrons and protons are observed on ISEE 1 and 2 at the low latitude dayside magnetopause. Wave and particle features have been characterized by taking averages over ten events. The 10‐10³ Hz magnetic waves and the 10‐105 Hz electric emissions can be represented by the power‐law spectra, Im = 10 f−3.9 nT2/Hz and Ie = 3 × 10−5 f−2.8 V²/m² Hz, respectively. The electron and proton fluxes and spectral shapes are nearly constant from event‐to‐event, and are characterized by j− = 3 × 105 E−1.8 cm−2sec−1ster−1keV−1 and j+ = 107 E−2.5 cm−2sec−1ster−1keV−1. Using typical magnetopause plasma and field values of 20 cm−3 and 50 nT, it is shown that the 1‐10 keV electrons and protons are scattered near the limit of strong pitch angle diffusion by the observed waves. A precipitation flux of ∼0.15 ergs/cm² sec is calculated, indicating a significant contribution to the dayside aurora.
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