Observations and simulations of electron flux oscillations in response to broadband ULF wave

It has recently been demonstrated through simulations and observations that electron flux oscillations are produced in the magnetosphere in association with broadband Ultra Low Frequency (ULF) waves. These oscillations are observed in the form of drift-periodic flux fluctuations, but are not associated with drift echoes following storm- or substorm-related energetic particle injections. They are observed in particular during quiet times, and it has been shown that they could indicate ongoing radial transport processes caused by ULF waves. It has also been shown that the width of electron energy channels is a critical parameter affecting the observed amplitude of flux oscillations, with narrower energy channel widths enabling the observation of higher-amplitude flux oscillations; this potentially explains why such features were not observed regularly before the Van Allen Probes era, as previous spacecraft generally had lower energy resolution. The amplitude of electric and magnetic fluctuations in the ULF range are directly related to the amplitude of the resulting flux oscillations. We extend these initial results by investigating analytic functions that can associate the observed flux oscillations with electric and magnetic fluctuations and with Phase Space Density gradients, both of which are expected to also affect radial transport rates.