Observations of relativistic electron microbursts in association with VLF chorus

By K. R. Lorentzen, J. Bernard Blake, Umran S. Inan, J. Bortnik. 2001

260 citations recorded by the source corpus.

Subfields: Astronomy and Astrophysics, Geophysics

View Paper: https://www.semanticscholar.org/paper/9625d8db737c88e8acff461bc827c29f73028ef3

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Citations in the corpus

Particle Dynamics in the Earth's Radiation Belts: Review of Current Research and Open Questions (2020, background): “The inherently bursty nature of chorus waves also causes lower‐energy electron microbursts that are short‐ timescale (tens of milliseconds) intense precipitation events with energies of tens to hundreds of kiloelectron volts (Fennell et al., 2014; Lorentzen et al., 2001; Mozer et al., 2018).”
Testing loss mechanisms capable of rapidly depleting relativistic electron flux in the Earth's outer radiation belt (2004, background): “... atmosphere? Several mechanisms have been suggested which could explain the observed precipitation, including scattering due to increased field line curvature and interaction with waves such as electron cyclotron harmonic waves (ECH) [Horne and Thorne, 2000], electromagnetic ion cyclotron waves (”
Timescales for radiation belt electron acceleration and loss due to resonant wave‐particle interactions: 2. Evaluation for VLF chorus, ELF hiss, and electromagnetic ion cyclotron waves (2007, methodology): “[6] Whistler-mode chorus can also cause significant pitch angle scattering of electrons into the loss cone leading to precipitation losses from the outer radiation belt [Lorentzen et al., 2001; O’Brien et al., 2004; Summers et al., 2005; Thorne et al., 2005b].”
Resonant scattering of plasma sheet electrons leading to diffuse auroral precipitation: 2. Evaluation for whistler mode chorus waves (2011, background): “…mode chorus can also cause efficient pitch angle scattering of electrons into the loss cone leading to precipitation into the atmosphere and net losses of energetic electrons from the outer radiation belt [Lorentzen et al., 2001;O’Brien et al., 2004; Thorne et al., 2005b;Orlova and Shprits, 2010].”
Timescale for MeV electron microburst loss during geomagnetic storms (2005, background): “The inherently bursty nature of chorus [Tsurutani and Smith, 1977; Santolik et al., 2003] causes microbursts of precipitation, which can be measured on low-altitude satellites such as SAMPEX [Lorentzen et al., 2001; O’Brien et al., 2003, 2004].”
Energization of relativistic electrons in the presence of ULF power and mev microbursts: Evidence for dual ULF and VLF acceleration (2003, methodology): “It should be noted that the distribution of chorus depicted in Figure 4 agrees in L and local time with the distribution of MeV microbursts seen in previous studies [Lyons et al., 1999; Nakamura et al., 2000; Lorentzen et al., 2001a], as expected if the two are causally connected.”
Observation of two distinct, rapid loss mechanisms during the 20 November 2003 radiation belt dropout event (2006, background): “The observed precipitation microbursts are thought to be related to the transient structure of the chorus waves [Lorentzen et al., 2001].”
Global distribution of whistler‐mode chorus waves observed on the THEMIS spacecraft (2009, background): “Recently, whistler-mode chorus waves have received increased attention due to their important roles in both acceleration and loss of energetic radiation belt electrons [e.g., Horne and Thorne, 1998, 2003; Summers et al., 1998, 2002, 2007; Lorentzen et al., 2001; Meredith et al., 2002, 2003; O’Brie”
Origin of energetic electron precipitation >30 keV into the atmosphere (2010, background): “SAMPEX satellite observations show that relativistic microburst precipitation is important during geomagnetic storms [Blake et al., 1996; Lorentzen et al., 2001a, 2001b; O’Brien and McPherron, 2003; O’Brien et al., 2004; Thorne et al., 2005].”
Dependence of the quasi‐linear scattering rates on the wave normal distribution of chorus waves (2009, background): “As was suggested in previous studies [ Lorentzen et al., 2001; Thorne et al., 2005; Shprits et al., 2006a; Horne et al., 2005], the latitudinal distribution of waves, frequency distribution of waves, and background plasma density also play important roles in determining scattering rates.”
Global model of lower band and upper band chorus from multiple satellite observations (2012, background): “In contrast, storm-time chorus at high latitudes causes microburst precipitation and may lead to losses of radiation belt electrons on the timescale of the order of a day [Lorentzen et al., 2001; O’Brien et al., 2004; Thorne et al., 2005b].”
Theory and simulation of the generation of whistler‐mode chorus (2008, unknown): “Gyroresonant pitch-angle scattering of electrons by chorus can lead to significant precipitation into the atmosphere and net loss of energetic electrons from the outer radiation belt [ Lorentzen et al., 2001; O’Brien et al., 2004; Summers et al., 2005; Thorne et al., 2005].”
Quantification of relativistic electron microburst losses during the GEM storms (2004, background): “The cyclotron resonance between chorus and � 1 MeVelectrons near the magnetic equator is thought to result in net diffusion toward 90 degrees pitch-angle and higher energies, whereas beyond � 15 degrees off the equator the resonant interaction is thought to result in particles being scattered into t”
Earth's Van Allen Radiation Belts: From Discovery to the Van Allen Probes Era (2019, background): “Nonlinear interactions between the rising tone chorus and energetic electrons are suggested to lead to the electron microbursts observed by various LEO satellites (e.g., Breneman et al., 2017; Hikishima et al., 2010; Lorentzen et al., 2001; O'Brien et al., 2004; Shumko et al., 2018).”