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College of Sciences and Mathematics

Recent Submissions

Generation of anomalous flows near the bow shock by its interaction with interplanetary discontinuities 
Lin, Yu; 0000-0001-8003-9252 (2020-06-30)
Two-dimensional hybrid simulations using a curvilinear coordinate system are carried out to study the interaction of the Earth's bow shock (BS) with an interplanetary directional discontinuity. In particular, plasma flow ...
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 ...
Solitary potential structures associated with ion and electron beams near 1 R-E altitude 
Bounds, SR; Pfaff, Rf; Knowlton, SF; Mozer, FS; Temerin, MA; Kletzing, CA (2020-06-30)
Small-scale solitary electric potential structures are commonly observed on auroral field lines with the Polar Electric Field Instrument (EFI). This study focuses on observations of solitary structures in the southern ...
Magnetic field rotation and transition width in rotational discontinuities and Alfven wave trains 
Lin, Y.; Lee, LC.; 0000-0001-8003-9252 (2020-06-30)
A hybrid simulation is carried out to study the evolution of magnetic field rotations in rotational discontinuities (RDs) and large-amplitude Alfven wave trains (AWTs) whose initial field rotation angle \Delta Phi\ > 180 ...
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 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 ...
Lattice thermal conductivity of MgO at conditions of Earth's interior 
Tang, Xiaoli; Dong, Jianjun (2020-06-29)
Thermal conductivity of the Earth’s lower mantle greatly impacts the mantle convection style and affects the heat conduction from the core to the mantle. Direct laboratory measurement of thermal conductivity of mantle ...
Global hybrid simulation of the dayside reconnection layer and associated field-aligned currents 
Lin, Y.; 0000-0001-8003-9252 (2020-06-26)
A two-dimensional global hybrid simulation is carried out to study the structure of the magnetopause boundary layer in the noon-midnight meridian plane associated with the dayside reconnection. In the simulation the bow ...
Outflow from the ionosphere in the vicinity of the cusp 
Valek, PW; Perez, JD; Jahn, JM; Pollock, CJ; Wuest, MP; Friedel, RHW; Moore, TE; Peterson, WK (2020-06-26)
Low-energy ion outflows from the ionosphere are known to be an important source of plasma for the magnetosphere. The objective of this study is to describe the spatial relationships between low-energy ionospheric outflows ...
Generation of near-Earth reconnection by divergent flows in the plasma sheet 
Lin, Y.; Swift, DW; 0000-0001-8003-9252 (2020-06-25)
A global two-dimensional hybrid simulation is carried out to study the evolution of the near-Earth plasma sheet. It is shown that reconnection X lines and plasmoids can be generated by diverging flows in the plasma sheet. ...
DAVIS: A direct algorithm for velocity-map imaging system 
Harrison, G. R.; Vaughan, J. C.; Hidle, B.; Laurent, G. M.; https://orcid.org/0000-0002-3700-7412 (2020-06-25)
In this work, we report a direct (non-iterative) algorithm to reconstruct the three-dimensional (3D) momentum-space picture of any charged particles collected with a velocity-map imaging system from the two-dimensional ...
DAVIS: A direct algorithm for velocity-map imaging system 
Harrison, G. R.; Vaughan, J. C.; Hidle, B.; Laurent, G. M.; https://orcid.org/0000-0002-3700-7412 (2020-06-25)
In this work, we report a direct (non-iterative) algorithm to reconstruct the three-dimensional (3D) momentum-space picture of any charged particles collected with a velocity-map imaging system from the two-dimensional ...
Accurate virial coefficients of gaseous krypton from state-of-the-art ab initio potential and polarizability of the krypton dimer 
Song, Bo; Waldrop, Jonathan M.; Wang, Xiaopo; Patkowski, Konrad; https://orcid.org/0000-0002-4468-207X (2020-06-25)
We have developed a new krypton-krypton interaction-induced isotropic dipole polarizability curve based on high-level ab initio methods. The determination was carried out using the coupled-cluster singles and doubles plus ...
First-order symmetry-adapted perturbation theory for multiplet splittings 
Patkowski, Konrad; Zuchowski, Piotr S.; Smith, Daniel G. A.; https://orcid.org/0000-0002-4468-207X (2020-06-25)
We present a symmetry-adapted perturbation theory (SAPT) for the interaction of two high-spin open-shell molecules (described by their restricted open-shell Hartree-Fock determinants) resulting in low-spin states of the ...
Communication: Water activation and splitting by single metal-atom anions 
Liu, Gaoxiang; Miliordos, Evangelos; Ciborowski, Sandra M.; Tschurl, Martin; Boesl, Ulrich; Heiz, Ulrich; Zhang, Xinxing; Xantheas, Sotiris S.; Bowen, Kit; https://orcid.org/0000-0003-3471-7133 (2020-06-25)
We report experimental and computational results pertaining to the activation and splitting of single water molecules by single atomic platinum anions. The anion photoelectron spectra of [Pt(H2O)](-), formed under different ...
Dependence of the multipole moments, static polarizabilities, and static hyperpolarizabilities of the hydrogen molecule on the H-H separation in the ground singlet state 
Miliordos, Evangelos; Hunt, Katharine L. C.; https://orcid.org/0000-0003-3471-7133 (2020-06-25)
In this work, we provide values for the quadrupole moment Theta, the hexadecapole moment Phi, the dipole polarizability alpha, the quadrupole polarizability C, the dipole-octopole polarizability E, the second dipole ...
Reactive transport of trace elements and isotopes in the Eutaw coastal plain aquifer, Alabama 
Lee, Ming-Kuo; Griffin, James; Saunders, James; Wang, Yang; Jean, Jiin-Shuh (2020-06-18)
[1] We integrate groundwater geochemistry, mineralogy, and numerical modeling techniques to study the reactive transport of heavy metals and isotopes in the Eutaw coastal plain aquifer, Alabama. Geochemical data show that ...
Radiation pressure measurements on micron-size individual dust grains 
Abbas, MM; Thomas, E.; 0000-0002-7747-0284 (2020-06-18)
Measurements of electromagnetic radiation pressure have been made on individual silica (SiO2) particles levitated in an electrodynamic balance. These measurements were made by inserting single charged particles of known ...
Global-scale simulation of foreshock structures at the quasi-parallel bow shock 
Lin, Yu; 0000-0001-8003-9252 (2020-06-18)
A two-dimensional, global-scale hybrid simulation is carried out to study the kinetic structure of the quasi-parallel bow shock. In the simulation the bow shock forms by the interaction of the supersonic solar wind and the ...
Dynamics of ring current ions as obtained from IMAGE HENA and MENA ENA images 
Perez, JD; Zhang, XX; Brandt, PCS; Mitchell, DG; Jahn, JM; Pollock, CJ (2020-06-18)
Ion distributions from three storms in the year 2000 have been obtained from HENA and MENA ENA images at 27-39 keV and 5-12 keV, respectively. The observed motion of the ring current is compared with calculations of expected ...

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