Relativistic Electron Increase During Chorus Wave Activities on the 6–8 March 2016 Geomagnetic Storm
Journal Article
·
· Journal of Geophysical Research. Space Physics
- Univ. of New Hampshire, Durham, NH (United States). Space Science Center
- Univ. of Iowa, Iowa City, IA (United States). Dept. of Physics and Astronomy
- Univ. of Colorado, Boulder, CO (United States). Lab. for Atmospheric and Space Physics
- Aerospace Corporation, El Segundo, CA (United States). Space Sciences Dept.
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Swedish Inst. of Space Physics, Uppsala (Sweden)
- Royal Inst. of Technology, Stockholm (Sweden)
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.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of Colorado, Boulder, CO (United States); Univ. of Iowa, Iowa City, IA (United States); Univ. of New Hampshire, Durham, NH (United States)
- Sponsoring Organization:
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) (Japan); National Aeronautics and Space Administration (NASA) (United States); USDOE
- Grant/Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1467372
- Report Number(s):
- LA-UR--17-29193
- Journal Information:
- Journal of Geophysical Research. Space Physics, Journal Name: Journal of Geophysical Research. Space Physics Journal Issue: 11 Vol. 122; ISSN 2169-9380
- Publisher:
- American Geophysical UnionCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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