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Title: Chorus Waves Modulation of Langmuir Waves in the Radiation Belts

Abstract

Using high-resolution waveforms measured by the Van Allen Probes, we report a novel observation in the radiation belts. Namely, we show that multiband, discrete, rising-tone whistler-mode chorus emissions exhibit a one-to-one correlation with Langmuir wave bursts. Moreover, the periodic Langmuir wave bursts are generally observed at the phase location where the chorus wave E|| component is oriented opposite to its propagation direction. The electron measurements show a beam in phase space density at the particle velocity that matches the parallel phase velocity of the chorus waves. Based on this evidence, we conclude that the chorus waves accelerate the suprathermal electrons via Landau resonance, and generate a localized electron beam in phase space density. Consequently, the Langmuir waves are excited locally and are modulated by the chorus wave phase. As a result, this microscale interaction between chorus waves and high frequency electrostatic waves provides a new insight into the nonlinear wave-particle interaction process.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1];  [1]; ORCiD logo [3]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [5]
+ Show Author Affiliations
  1. Univ. of California, Los Angeles, CA (United States)
  2. Boston Univ., Boston, MA (United States)
  3. Univ. of Iowa, Iowa City, IA (United States)
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  5. Univ. of New Hampshire, Durham, NH (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
National Aeronautic and Space Administration (NASA); USDOE
OSTI Identifier:
1410626
Report Number(s):
LA-UR-17-30490
Journal ID: ISSN 0094-8276; TRN: US1800143
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Geophysical Research Letters
Additional Journal Information:
Journal Volume: 44; Journal Issue: 23; Journal ID: ISSN 0094-8276
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; Heliospheric and Magnetospheric Physics

Citation Formats

Li, Jinxing, Bortnik, Jacob, An, Xin, Li, Wen, Thorne, Richard M., Zhou, Meng, Kurth, William S., Hospodarsky, George B., Funsten, Herbert O., and Spence, Harlan E. Chorus Waves Modulation of Langmuir Waves in the Radiation Belts. United States: N. p., 2017. Web. doi:10.1002/2017GL075877.
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Li, Jinxing, Bortnik, Jacob, An, Xin, Li, Wen, Thorne, Richard M., Zhou, Meng, Kurth, William S., Hospodarsky, George B., Funsten, Herbert O., & Spence, Harlan E. Chorus Waves Modulation of Langmuir Waves in the Radiation Belts. United States. doi:10.1002/2017GL075877.
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Li, Jinxing, Bortnik, Jacob, An, Xin, Li, Wen, Thorne, Richard M., Zhou, Meng, Kurth, William S., Hospodarsky, George B., Funsten, Herbert O., and Spence, Harlan E. Mon . "Chorus Waves Modulation of Langmuir Waves in the Radiation Belts". United States. doi:10.1002/2017GL075877. https://www.osti.gov/servlets/purl/1410626.
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@article{osti_1410626,
title = {Chorus Waves Modulation of Langmuir Waves in the Radiation Belts},
author = {Li, Jinxing and Bortnik, Jacob and An, Xin and Li, Wen and Thorne, Richard M. and Zhou, Meng and Kurth, William S. and Hospodarsky, George B. and Funsten, Herbert O. and Spence, Harlan E.},
abstractNote = {Using high-resolution waveforms measured by the Van Allen Probes, we report a novel observation in the radiation belts. Namely, we show that multiband, discrete, rising-tone whistler-mode chorus emissions exhibit a one-to-one correlation with Langmuir wave bursts. Moreover, the periodic Langmuir wave bursts are generally observed at the phase location where the chorus wave E|| component is oriented opposite to its propagation direction. The electron measurements show a beam in phase space density at the particle velocity that matches the parallel phase velocity of the chorus waves. Based on this evidence, we conclude that the chorus waves accelerate the suprathermal electrons via Landau resonance, and generate a localized electron beam in phase space density. Consequently, the Langmuir waves are excited locally and are modulated by the chorus wave phase. As a result, this microscale interaction between chorus waves and high frequency electrostatic waves provides a new insight into the nonlinear wave-particle interaction process.},
doi = {10.1002/2017GL075877},
journal = {Geophysical Research Letters},
number = 23,
volume = 44,
place = {United States},
year = {2017},
month = {11}
}
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DOI:  10.1002/2017GL075877
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    Works referencing / citing this record:

    Local Excitation of Whistler Mode Waves and Associated Langmuir Waves at Dayside Reconnection Regions
    journal, September 2018

    • Li, Jinxing; Bortnik, Jacob; An, Xin
    • Geophysical Research Letters, Vol. 45, Issue 17
    • DOI: 10.1029/2018gl078287

    Waves in Kinetic‐Scale Magnetic Dips: MMS Observations in the Magnetosheath
    journal, January 2019

    • Yao, S. T.; Shi, Q. Q.; Yao, Z. H.
    • Geophysical Research Letters, Vol. 46, Issue 2
    • DOI: 10.1029/2018gl080696

    High‐Frequency Thermal Fluctuations and Instabilities in the Radiation Belt Environment
    journal, November 2018

    • Hwang, Junga; Yoon, Peter H.
    • Journal of Geophysical Research: Space Physics, Vol. 123, Issue 11
    • DOI: 10.1029/2018ja025643

    Parallel Acceleration of Suprathermal Electrons Caused by Whistler‐Mode Hiss Waves
    journal, November 2019

    • Li, Jinxing; Ma, Qianli; Bortnik, Jacob
    • Geophysical Research Letters, Vol. 46, Issue 22
    • DOI: 10.1029/2019gl085562

    Two‐Dimensional gcPIC Simulation of Rising‐Tone Chorus Waves in a Dipole Magnetic Field
    journal, June 2019

    • Lu, Quanming; Ke, Yangguang; Wang, Xueyi
    • Journal of Geophysical Research: Space Physics, Vol. 124, Issue 6
    • DOI: 10.1029/2019ja026586
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