Particle dynamics in the Earth's radiation belts: Review of current research and open questions

JF Ripoll, SG Claudepierre… - Journal of …, 2020 - Wiley Online Library
The past decade transformed our observational understanding of energetic particle
processes in near‐Earth space. An unprecedented suite of observational systems was in …

Differentiating between the leading processes for electron radiation belt acceleration

S Lejosne, HJ Allison, LW Blum, AY Drozdov… - Frontiers in astronomy …, 2022 - frontiersin.org
Many spacecraft fly within or through a natural and variable particle accelerator powered by
the coupling between the magnetosphere and the solar wind: the Earth's radiation belts …

Empirically estimated electron lifetimes in the Earth's radiation belts: Comparison with theory

SG Claudepierre, Q Ma, J Bortnik… - Geophysical …, 2020 - Wiley Online Library
We compute quasilinear diffusion rates due to pitch angle scattering by various mechanisms
in the Earth's electron radiation belts. The calculated theoretical lifetimes are compared with …

Statistics and empirical models of the plasmasphere boundaries from the Van Allen Probes for radiation belt physics

JF Ripoll, SA Thaller, DP Hartley… - Geophysical …, 2022 - Wiley Online Library
We deduce the electron plasma density from the NASA Van Allen Probes Electric Field and
Waves and Electric and Magnetic Field Instrument Suite and Integrated Science …

The electric and magnetic fields instrument suite and integrated science (EMFISIS): Science, data, and usage best practices

CA Kletzing, J Bortnik, G Hospodarsky, WS Kurth… - Space science …, 2023 - Springer
We provide a post-mission assessment of the science and data from the Electric and
Magnetic Field Instrument Suite and Integrated Science (EMFISIS) investigation on the …

A new population of ultra‐relativistic electrons in the outer radiation zone

YY Shprits, HJ Allison, D Wang… - Journal of …, 2022 - Wiley Online Library
Abstract Van Allen Probes measurements revealed the presence of the most unusual
structures in the ultra‐relativistic radiation belts. Detailed modeling, analysis of pitch angle …

Using Van Allen Probes and Arase observations to develop an empirical plasma density model in the inner zone

DP Hartley, GS Cunningham, JF Ripoll… - Journal of …, 2023 - Wiley Online Library
A new empirical density model is developed for the inner zone between 1< L< 3 using
plasma densities inferred from the upper hybrid resonance on Arase, and hiss‐inferred …

Observations and simulations of dropout events and flux decays in October 2013: Comparing MEO equatorial with LEO polar orbit

V Pierrard, JF Ripoll, G Cunningham… - Journal of …, 2021 - Wiley Online Library
Abstract We compare ESA PROBA‐V observations of electron flux at LEO with those from
the NASA Van Allen Probes mostly at MEO for October 2013. Dropouts are visible at all …

Ensemble modeling of radiation belt electron acceleration by chorus waves: Dependence on key input parameters

M Hua, J Bortnik, AC Kellerman, E Camporeale… - Space …, 2023 - Wiley Online Library
We perform ensemble simulations of radiation belt electron acceleration using the quasi‐
linear approach during the storm on 9 October 2012, where chorus waves dominated …

Comparing electron precipitation fluxes calculated from pitch angle diffusion coefficients to LEO satellite observations

JA Reidy, RB Horne, SA Glauert… - Journal of …, 2021 - Wiley Online Library
Particle precipitation is a loss mechanism from the radiation belts whereby particles trapped
by the Earth's magnetic field are scattered into the loss cone due to wave‐particle …