Relativistic Electron Increase During Chorus Wave Activities on the 6-8 March 2016 Geomagnetic Storm

H. Matsui; R. B. Torbert; H. E. Spence; M. R. Argall; L. Alm; C. J. Farrugia; W. S. Kurth; D. N. Baker; J. B. Blake; H. O. Funsten; G. D. Reeves; R. E. Ergun; Yu. V. Khotyaintsev; P. -A. Lindqvist

doi:10.1002/2017JA024540

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Relativistic Electron Increase During Chorus Wave Activities on the 6-8 March 2016 Geomagnetic Storm

Journal article

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Relativistic Electron Increase During Chorus Wave Activities on the 6-8 March 2016 Geomagnetic Storm

H. Matsui, R. B. Torbert, H. E. Spence, M. R. Argall, L. Alm, C. J. Farrugia, W. S. Kurth, D. N. Baker, J. B. Blake, H. O. Funsten, …

Journal of geophysical research. Space physics, Vol.122(11), pp.11302-11319

11/2017

DOI: 10.1002/2017JA024540

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Abstract

There was a geomagnetic storm on 6-8 March 2016, in which Van Allen Probes A and B separated by similar to 2.5 h measured increase of relativistic electrons with energies approximately several hundred keV to 1 MeV. Simultaneously, chorus waves were measured by both Van Allen Probes and Magnetospheric Multiscale (MMS) mission. Some of the chorus elements were rising tones, possibly due to nonlinear effects. These measurements are compared with a nonlinear theory of chorus waves incorporating the inhomogeneity ratio and the field equation. From this theory, a chorus wave profile in time and one-dimensional space is simulated. Test particle calculations are then performed in order to examine the energization rate of electrons. Some electrons are accelerated, although more electrons are decelerated. The measured time scale of the electron increase is inferred to be consistent with this nonlinear theory.

Physical Sciences

Astronomy & Astrophysics

Science & Technology

Details

Title: Subtitle: Relativistic Electron Increase During Chorus Wave Activities on the 6-8 March 2016 Geomagnetic Storm
Creators: H. Matsui - University of New Hampshire
R. B. Torbert - University of New Hampshire at Manchester
H. E. Spence - University of New Hampshire
M. R. Argall - University of New Hampshire
L. Alm - University of New Hampshire at Manchester
C. J. Farrugia - University of New Hampshire
W. S. Kurth - University of Iowa
D. N. Baker - Laboratory for Atmospheric and Space Physics
J. B. Blake - The Aerospace Corporation
H. O. Funsten - Los Alamos National Laboratory
G. D. Reeves - Los Alamos National Laboratory
R. E. Ergun - University of Colorado Boulder
Yu. V. Khotyaintsev - Swedish Institute
P. -A. Lindqvist - KTH Royal Institute of Technology
Resource Type: Journal article
Publication Details: Journal of geophysical research. Space physics, Vol.122(11), pp.11302-11319
DOI: 10.1002/2017JA024540
ISSN: 2169-9380
eISSN: 2169-9402
Publisher: Amer Geophysical Union
Number of pages: 18
Grant note: 921647; NAS5-01072 / JHU/APL under NASA NNG04EB99C / NASA's MMS NAS5-01072 / Energetic Particle, Composition, and Thermal Plasma (RBSP-ECT) investigation under NASA 16H04057 / Ministry of Education, Culture, Sports, Science and Technology (MEXT); Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT)
Language: English
Date published: 11/2017
Academic Unit: Physics and Astronomy
Record Identifier: 9984455550802771

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