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Title: Drift Instabilities in Thin Current Sheets Using a Two–Fluid Model With Pressure Tensor Effects

Journal Article · · Journal of Geophysical Research. Space Physics
DOI:https://doi.org/10.1029/2018ja026313· OSTI ID:1558787
ORCiD logo [1];  [2]; ORCiD logo [3];  [4]
  1. Princeton Univ., Princeton, NJ (United States); Univ. of Maryland, College Park, MD (United States)
  2. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
  3. Univ. of Maryland, College Park, MD (United States)
  4. Princeton Univ., Princeton, NJ (United States); Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)

Abstract The integration of kinetic effects in fluid models is important for global simulations of the Earth's magnetosphere. We use a two‐fluid 10‐moment model, which includes the pressure tensor and has been used to study reconnection, to study the drift kink and lower hybrid drift instabilities. Using a nonlocal linear eigenmode analysis, we find that for the kink mode, the 10‐moment model shows good agreement with kinetic calculations with the same closure model used in reconnection simulations, while the electromagnetic and electrostatic lower hybrid instabilities require modeling the effects of the ion resonance using a Landau fluid closure. Comparisons with kinetic simulations and the implications of the results for global magnetospheric simulations are discussed.

Research Organization:
Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)
Sponsoring Organization:
USDOE
Contributing Organization:
80NSSC17K0428
Grant/Contract Number:
AC02-09CH11466
OSTI ID:
1558787
Alternate ID(s):
OSTI ID: 1515558
Journal Information:
Journal of Geophysical Research. Space Physics, Vol. 124, Issue 5; ISSN 2169-9380
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

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Cited By (2)

On the Fourier Contribution of Strong Current Sheets to the High‐Frequency Magnetic Power SpectralDensity of the Solar Wind journal February 2020
An extended MHD study of the 16 October 2015 MMS diffusion region crossing text January 2019

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