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Test-Particle Simulations of Linear and Nonlinear Interactions Between a 2-D Whistler-Mode Wave Packet and Radiation Belt Electrons 

da Silva, C. L.; Denton, R. E.; Hudson, M. K.; Millan, R. M.; Liu, K.; Bortnik, J. (2020-05-27)
Using test-particle simulations, we describe (in 2-D) the interaction of an ensemble of electrons with a discrete whistler-mode wave packet, which propagates with a moderate wave-normal angle with respect to the background ...

Three-dimensional global hybrid simulation of dayside dynamics associated with the quasi-parallel bow shock 

Lin, Y.; Wang, XY; 0000-0001-8003-9252; 0000-0001-5533-5981 (2020-06-18)
A three-dimensional global-scale hybrid simulation is carried out, for the first time, for dynamics of the dayside bow shock-magnetosphere system associated with the quasi-parallel bow shock. A case with IMF along the ...

Three-dimensional hybrid simulation of magnetosheath reconnection under northward and southward interplanetary magnetic field 

Pang, Y.; Lin, Y.; Deng, X. H.; Wang, X. Y.; Tan, B.; 0000-0001-8003-9252; 0000-0001-5533-5981 (2020-06-16)
A three-dimensional (3-D) global hybrid simulation is carried out for the generation and structure of magnetic reconnection in the magnetosheath because of the interaction of an interplanetary tangential discontinuity (TD) ...

Three-dimensional MHD simulations of interplanetary rotational discontinuities impacting the Earth's bow shock and magnetosheath 

Cable, S.; Lin, Y.; 0000-0001-8003-9252 (2020-06-30)
The first ever fully three-dimensional magnetohydrodynamic (MHD) simulations of the detailed effects of MHD discontinuities on the magnetosheath have been performed. The simulation results predict that the interaction ...

Trapped and precipitating protons in the inner magnetosphere as seen by IMAGE 

Perez, JD; Zhang, XX; Brandt, PC; Mitchell, DG; Jahn, JM; Pollock, CJ; Mende, SB (2020-06-18)
[1] Images from the IMAGE satellite of precipitating protons (SU12/FUV) and trapped protons at 8.5 (MENA) and 33 keV (HENA) are compared during three periods: ( 1) 12 August 2000 from 1000 UT to 1145 UT just after the peak ...

TWINS stereoscopic imaging of multiple peaks in the ring current 

Perez, J. D.; Goldstein, J.; McComas, D. J.; Valek, P.; Buzulukova, N.; Fok, M. -C.; Singer, H. J. (2020-06-05)
Global, ion equatorial flux distributions and energy spectra are presented from stereoscopic Two Wide-Angle Imaging Neutral-Atom Spectrometers (TWINS) 1 and TWINS 2 energetic neutral atom (ENA) images for two time periods, ...

Two-Dimensional gcPIC Simulation of Rising-Tone Chorus Waves in a Dipole Magnetic Field 

Lu, Quanming; Ke, Yangguang; Wang, Xueyi; Liu, Kaijun; Gao, Xinliang; Chens, Lunjin; Wang, Shui (2020-05-26)
Rising-tone chorus waves have already been successfully produced in a mirror magnetic field with the use of one- and two-dimensional particle-in-cell (PIC) simulations. However, in reality, the background magnetic field ...

Two-dimensional global hybrid simulation of pressure evolution and waves in the magnetosheath 

Lin, Y; Denton, RE; Lee, LC; Chao, JK; 0000-0001-8003-9252 (2020-06-30)
A two-dimensional hybrid simulation is carried out for the global structure of the magnetosheath. Quasi-perpendicular magnetosonic/fast mode waves with large-amplitude in-phase oscillations of the magnetic field and the ...

Two-dimensional hybrid simulation of the dayside reconnection layer and associated ion transport 

Xie, H.; Lin, Y.; 0000-0001-8003-9252 (2020-06-30)
The structure of the reconnection layer at the dayside magnetopause is studied by using a two-dimensional (2-D) hybrid code. The simulation domain is a rectangle in the at plane around an X line at the magnetopause. In our ...

Two-Dimensional Particle-in-Cell Simulation of Magnetosonic Wave Excitation in a Dipole Magnetic Field 

Chen, Lunjin; Sun, Jicheng; Lu, Quanming; Wang, Xueyi; Gao, Xinliang; Wang, Dedong; Wang, Shui (2020-05-27)
The excitation of magnetosonic waves in the meridian plane of a rescaled dipole magnetic field is investigated, for the first time, using a general curvilinear particle-in-cell simulation. Our simulation demonstrates that ...

Understanding the growth rate patterns of ion Bernstein instabilities driven by ring-like proton velocity distributions 

Min, Kyungguk; Liu, Kaijun; 0000-0002-2095-8529; 0000-0001-5882-1328 (2020-06-03)
Fast magnetosonic waves in Earth's inner magnetosphere, which have as their source ion Bernstein instabilities, are driven by hot proton velocity distributions (f(p)) with partial derivative f(p)(v(perpendicular to))/partial ...

VHF and UHF Electromagnetic Radiation Produced by Streamers in Lightning 

Shi, Feng; Dwyer, Joseph R.; Ihaddadene, Kevin M.A.; Liu, Ningyu; https://orcid.org/0000-0003-3406-9383 (2020-03-10)
In this letter, we report simulation results of streamer propagation and collision that produce electromagnetic radiation in the very high frequency (VHF) and ultra high frequency (UHF) bands. The streamers are initiated ...

Whistler anisotropy instabilities as the source of banded chorus: Van Allen Probes observations and particle-in-cell simulations 

Fu, Xiangrong; Liu, Kaijun; Min, Kyungguk; Winske, Dan; 0000-0001-5882-1328; 0000-0002-2095-8529 (2020-06-05)
Magnetospheric banded chorus is enhanced whistler waves with frequencies (r)<(e), where (e) is the electron cyclotron frequency, and a characteristic spectral gap at (r)similar or equal to(e)/2. This paper uses spacecraft ...