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Title: Relativistic Electron Increase During Chorus Wave Activities on the 6–8 March 2016 Geomagnetic Storm

There was a geomagnetic storm on 6–8 March 2016, in which Van Allen Probes A and B separated by ~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. In this paper, 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. Finally, the measured time scale of the electron increase is inferred to be consistent with this nonlinear theory.
Authors:
ORCiD logo [1] ; ORCiD logo [1] ; ORCiD logo [1] ; ORCiD logo [1] ; ORCiD logo [1] ; ORCiD logo [1] ; ORCiD logo [2] ; ORCiD logo [3] ; ORCiD logo [4] ; ORCiD logo [5] ; ORCiD logo [5] ; ORCiD logo [3] ; ORCiD logo [6] ; ORCiD logo [7]
  1. Univ. of New Hampshire, Durham, NH (United States). Space Science Center
  2. Univ. of Iowa, Iowa City, IA (United States). Dept. of Physics and Astronomy
  3. Univ. of Colorado, Boulder, CO (United States). Lab. for Atmospheric and Space Physics
  4. Aerospace Corporation, El Segundo, CA (United States). Space Sciences Dept.
  5. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  6. Swedish Inst. of Space Physics, Uppsala (Sweden)
  7. Royal Inst. of Technology, Stockholm (Sweden)
Publication Date:
Report Number(s):
LA-UR-17-29193
Journal ID: ISSN 2169-9380
Grant/Contract Number:
AC52-06NA25396; NAS5-01072; 921647; NNG04EB99C; 16H04057
Type:
Accepted Manuscript
Journal Name:
Journal of Geophysical Research. Space Physics
Additional Journal Information:
Journal Volume: 122; Journal Issue: 11; Journal ID: ISSN 2169-9380
Publisher:
American Geophysical Union
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of New Hampshire, Durham, NH (United States); Univ. of Iowa, Iowa City, IA (United States); Univ. of Colorado, Boulder, CO (United States)
Sponsoring Org:
USDOE; National Aeronautic and Space Administration (NASA); Ministry of Education, Culture, Sports, Science and Technology (MEXT) (Japan)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; relativistic electrons; chorus waves; geomagnetic storm
OSTI Identifier:
1467372

Matsui, H., Torbert, R. B., Spence, H. E., Argall, M. R., Alm, L., Farrugia, C. J., Kurth, W. S., Baker, D. N., Blake, J. B., Funsten, H. O., Reeves, G. D., Ergun, R. E., Khotyaintsev, Yu. V., and Lindqvist, P. -A.. Relativistic Electron Increase During Chorus Wave Activities on the 6–8 March 2016 Geomagnetic Storm. United States: N. p., Web. doi:10.1002/2017JA024540.
Matsui, H., Torbert, R. B., Spence, H. E., Argall, M. R., Alm, L., Farrugia, C. J., Kurth, W. S., Baker, D. N., Blake, J. B., Funsten, H. O., Reeves, G. D., Ergun, R. E., Khotyaintsev, Yu. V., & Lindqvist, P. -A.. Relativistic Electron Increase During Chorus Wave Activities on the 6–8 March 2016 Geomagnetic Storm. United States. doi:10.1002/2017JA024540.
Matsui, H., Torbert, R. B., Spence, H. E., Argall, M. R., Alm, L., Farrugia, C. J., Kurth, W. S., Baker, D. N., Blake, J. B., Funsten, H. O., Reeves, G. D., Ergun, R. E., Khotyaintsev, Yu. V., and Lindqvist, P. -A.. 2017. "Relativistic Electron Increase During Chorus Wave Activities on the 6–8 March 2016 Geomagnetic Storm". United States. doi:10.1002/2017JA024540. https://www.osti.gov/servlets/purl/1467372.
@article{osti_1467372,
title = {Relativistic Electron Increase During Chorus Wave Activities on the 6–8 March 2016 Geomagnetic Storm},
author = {Matsui, H. and Torbert, R. B. and Spence, H. E. and Argall, M. R. and Alm, L. and Farrugia, C. J. and Kurth, W. S. and Baker, D. N. and Blake, J. B. and Funsten, H. O. and Reeves, G. D. and Ergun, R. E. and Khotyaintsev, Yu. V. and Lindqvist, P. -A.},
abstractNote = {There was a geomagnetic storm on 6–8 March 2016, in which Van Allen Probes A and B separated by ~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. In this paper, 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. Finally, the measured time scale of the electron increase is inferred to be consistent with this nonlinear theory.},
doi = {10.1002/2017JA024540},
journal = {Journal of Geophysical Research. Space Physics},
number = 11,
volume = 122,
place = {United States},
year = {2017},
month = {10}
}