Van Allen Probes observations of structured whistler mode activity and coincident electron Landau acceleration inside a remnant plasmaspheric plume
Abstract
Abstract We present observations from the Van Allen Probes spacecraft that identify a region of intense whistler mode activity within a large density enhancement outside of the plasmasphere. We speculate that this density enhancement is part of a remnant plasmaspheric plume, with the observed wave being driven by a weakly anisotropic electron injection that drifted into the plume and became nonlinearly unstable to whistler emission. Particle measurements indicate that a significant fraction of thermal (<100 eV) electrons within the plume were subject to Landau acceleration by these waves, an effect that is naturally explained by whistler emission within a gradient and high‐density ducting inside a density enhancement.
- Authors:
-
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Embry-Riddle Aeronautical Univ., Daytona Beach, FL (United States)
- Univ. of Iowa, Iowa City, IA (United States)
- Univ. of Minnesota, Minneapolis, MN (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1558218
- Alternate Identifier(s):
- OSTI ID: 1402330
- Report Number(s):
- LA-UR-19-20000
Journal ID: ISSN 2169-9380
- Grant/Contract Number:
- 89233218CNA000001
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Geophysical Research. Space Physics
- Additional Journal Information:
- Journal Volume: 122; Journal Issue: 3; Journal ID: ISSN 2169-9380
- Publisher:
- American Geophysical Union
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; Heliospheric and Magnetospheric Physics; whistler, VLF wave, plasmasphere, wave-particle interactions
Citation Formats
Woodroffe, J. R., Jordanova, V. K., Funsten, H. O., Streltsov, A. V., Bengtson, M. T., Kletzing, C. A., Wygant, J. R., Thaller, S. A., and Breneman, A. W. Van Allen Probes observations of structured whistler mode activity and coincident electron Landau acceleration inside a remnant plasmaspheric plume. United States: N. p., 2017.
Web. doi:10.1002/2015JA022219.
Woodroffe, J. R., Jordanova, V. K., Funsten, H. O., Streltsov, A. V., Bengtson, M. T., Kletzing, C. A., Wygant, J. R., Thaller, S. A., & Breneman, A. W. Van Allen Probes observations of structured whistler mode activity and coincident electron Landau acceleration inside a remnant plasmaspheric plume. United States. https://doi.org/10.1002/2015JA022219
Woodroffe, J. R., Jordanova, V. K., Funsten, H. O., Streltsov, A. V., Bengtson, M. T., Kletzing, C. A., Wygant, J. R., Thaller, S. A., and Breneman, A. W. Sat .
"Van Allen Probes observations of structured whistler mode activity and coincident electron Landau acceleration inside a remnant plasmaspheric plume". United States. https://doi.org/10.1002/2015JA022219. https://www.osti.gov/servlets/purl/1558218.
@article{osti_1558218,
title = {Van Allen Probes observations of structured whistler mode activity and coincident electron Landau acceleration inside a remnant plasmaspheric plume},
author = {Woodroffe, J. R. and Jordanova, V. K. and Funsten, H. O. and Streltsov, A. V. and Bengtson, M. T. and Kletzing, C. A. and Wygant, J. R. and Thaller, S. A. and Breneman, A. W.},
abstractNote = {Abstract We present observations from the Van Allen Probes spacecraft that identify a region of intense whistler mode activity within a large density enhancement outside of the plasmasphere. We speculate that this density enhancement is part of a remnant plasmaspheric plume, with the observed wave being driven by a weakly anisotropic electron injection that drifted into the plume and became nonlinearly unstable to whistler emission. Particle measurements indicate that a significant fraction of thermal (<100 eV) electrons within the plume were subject to Landau acceleration by these waves, an effect that is naturally explained by whistler emission within a gradient and high‐density ducting inside a density enhancement.},
doi = {10.1002/2015JA022219},
journal = {Journal of Geophysical Research. Space Physics},
number = 3,
volume = 122,
place = {United States},
year = {Sat Feb 25 00:00:00 EST 2017},
month = {Sat Feb 25 00:00:00 EST 2017}
}
Web of Science
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