Kinetic Alfvén waves and particle response associated with a shock-induced, global ULF perturbation of the terrestrial magnetosphere
- Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder Colorado USA
- Space Sciences Department, Aerospace Corporation, El Segundo California USA
- The Johns Hopkins University Applied Physics Laboratory, Laurel Maryland USA
- School of Physics and Astronomy, University of Minnesota, Minneapolis Minnesota USA
- Los Alamos National Laboratory, Los Alamos New Mexico USA
- Department of Physics and Astronomy, University of Iowa, Iowa City Iowa USA
On 2 October 2013, the arrival of an interplanetary shock compressed the Earth's magnetosphere and triggered a global ULF (ultra low frequency) oscillation. Furthermore, the Van Allen Probe B spacecraft observed this large-amplitude ULF wave in situ with both magnetic and electric field data. Broadband waves up to approximately 100 Hz were observed in conjunction with, and modulated by, this ULF wave. Detailed analysis of fields and particle data reveals that these broadband waves are Doppler-shifted kinetic Alfvén waves. This event then suggests that magnetospheric compression by interplanetary shocks can induce abrupt generation of kinetic Alfvén waves over large portions of the inner magnetosphere, potentially driving previously unconsidered wave-particle interactions throughout the inner magnetosphere during the initial response of the magnetosphere to shock impacts.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE; National Aeronautics and Space Administration (NASA)
- Grant/Contract Number:
- AC52-06NA25396; NAS5-01072
- OSTI ID:
- 1402591
- Report Number(s):
- LA-UR-15-27236; TRN: US1702872
- Journal Information:
- Geophysical Research Letters, Vol. 42, Issue 21; ISSN 0094-8276
- Publisher:
- American Geophysical UnionCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Interaction of ULF waves with different ion species: Pitch angle and phase space density implications: ULF WAVES INTERACING WITH DIFFERENT IONS
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journal | October 2016 |
A Census of Plasma Waves and Structures Associated With an Injection Front in the Inner Magnetosphere: BOUNDARY WAVE CASE STUDY
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journal | April 2018 |
Recent Advancements and Remaining Challenges Associated With Inner Magnetosphere Cross‐Energy/Population Interactions (IMCEPI)
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journal | February 2019 |
Resonant instabilities of kinetic Alfvén waves in the Earth's magnetosphere with superthermal electrons
|
journal | November 2019 |
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