Using observations from the Galileo/PWS and Wind/WAVES experiments we show that hectometric periodic enhancements related to the auroral regions take place in the Jovian magnetosphere. These phenomena are linked to the Jovian hectometric emissions which exhibit ‘‘HOM events’’ with a time duration of several days. Both spacecraft have recorded almost the same periodic enhancement despite the differences in distance to the planet and the coverage disparity in CML.
Our analysis of these hectometric enhancements shows similar features in longitude as the study of the ‘‘ejection’’ events recorded by the energetic particle detector (EPD) onboard Galileo. The enhancement in the occurrence of ‘‘ejection particles’’ or ‘‘HOM events’’ begins at two specific longitudes: 45 CML and 180 CML. A detailed examination of the fluctuations of the Jovian hectometric emission leads to a significant correlation between the HOM radiation and solar wind parameters.
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