New results on the correlation between low-energy electrons and auroral hiss

摘要: Although simultaneous satellite results from VLF, LF, and MF receivers low-energy electron detectors have in the past few years demonstrated that electrons with energies of a hundred volts are source auroral hiss band day side cleft region, night zone has not been clearly identified. To deduce origin this hiss, we compared records VLF experiment (0.3–18 kHz) Ogo 4 spacecraft data obtained by same on precipitating at 0.7, 2.3, 7.3 keV. As general observation, these correlation is best 0.7 keV worst From detailed inspection concluded while range may enhance intensity side, below about predominant as well. The observation whenever observed, it tends to occur simultaneously over broad frequencies strongly suggests all generated essentially energy range, i.e., those 1 This conclusion supported study based 6 which revealed lack between LF hiss. We also excellent 0.7-keV maintained situations region very soft precipitation motion. In absence data, can thus be used studies relating location motions.