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Whistler wave generation by anisotropic tail electrons during asymmetric magnetic reconnection in space and laboratory

Journal Article · · Geophysical Research Letters
DOI:https://doi.org/10.1029/2018GL079278· OSTI ID:1465996
 [1];  [1];  [1];  [2];  [3];  [4];  [1];  [1];  [1];  [1];  [2];  [2]
  1. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
  2. NASA Goddard Space Flight Center, Greenbelt, MD (United States)
  3. Columbia Univ., New York, NY (United States). Dept. of Physics
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
+ Show Author Affiliations
Whistler wave generation near the magnetospheric separatrix during reconnection at the dayside magnetopause is studied with data from the Magnetospheric Multiscale (MMS) mission. The dispersion relation of the whistler mode is measured for the first time near the reconnection region in space, which shows that whistler waves propagate nearly parallel to the magnetic field line. A linear analysis indicates that the whistler waves are generated by temperature anisotropy in the electron tail population. This is caused by loss of electrons with a high velocity parallel to the magnetic field to the exhaust region. Here, there is a positive correlation between activities of whistler waves and the lower–hybrid drift instability (LHDI) both in laboratory and space, indicating the enhanced transport by LHDI may be responsible for the loss of electrons with a high parallel velocity.
Research Organization:
Los Alamos National Laboratory (LANL); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
Sponsoring Organization:
National Aeronautic and Space Administration (NASA); National Science Foundation (NSF); USDOE
Grant/Contract Number:
AC02-09CH11466; AC52-06NA25396; FG02-00ER54585; SC0016278
OSTI ID:
1465996
Alternate ID(s):
OSTI ID: 1467278
OSTI ID: 1467734
Report Number(s):
LA-UR--18-20161; LA-UR-18-20161
Journal Information:
Geophysical Research Letters, Journal Name: Geophysical Research Letters Journal Issue: 16 Vol. 45; ISSN 0094-8276
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (6)

Interplay between Kelvin–Helmholtz and lower-hybrid drift instabilities journal November 2019
Whistler Waves Driven by Field‐Aligned Streaming Electrons in the Near‐Earth Magnetotail Reconnection journal May 2019
High‐Frequency Wave Generation in Magnetotail Reconnection: Nonlinear Harmonics of Upper Hybrid Waves journal July 2019
Whistler wave generation by electron temperature anisotropy during magnetic reconnection at the magnetopause journal May 2019
Observation of weakly damped modes using high resolution measurement of turbulence in a dipole confined plasma journal January 2020
Whistler wave generation by anisotropic tail electrons during asymmetric magnetic reconnection in space and laboratory dataset January 2018

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Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
Dispersion relation
Heliospheric and Magnetospheric Physics
Lower-hybrid drift instability
Magnetic reconnection
Temperature anisotropy
Whistler wave