82 citations · 558 across the 33 of their papers we have counts for
6 papers · 1 filter
Effects of Artificial Collisions, Filtering, and Nonlocal Closure Approaches on Hermite-based Vlasov-Poisson Simulations
Opal Issan, Oleksandr Chapurin, Oleksandr Koshkarov +1
Kinetic simulations of collisionless plasmas are computationally challenging due to phase space mixing and filamentation, resulting in fine-scale velocity structures. This study co…
Conservative Closures of the Vlasov-Poisson Equations Based on Symmetrically Weighted Hermite Spectral Expansion
Opal Issan, Oleksandr Koshkarov, Federico D. Halpern +2
We derive conservative closures of the Vlasov-Poisson equations discretized in velocity via the symmetrically weighted Hermite spectral expansion. The short note analyzes the conse…
Oblique Instability of Quasi-Parallel Whistler Waves in the Presence of Cold and Warm Electron Populations
Vadim Roytershteyn, Gian Luca Delzanno, Justin C. Holmes
Whistler waves propagating nearly parallel to the ambient magnetic field experience a nonlinear instability that generates oblique electrostatic waves, including whistlers near the…
AI in Space for Scientific Missions: Strategies for Minimizing Neural-Network Model Upload
Jonah Ekelund, Ricardo Vinuesa, Yuri Khotyaintsev +3
Artificial Intelligence (AI) has the potential to revolutionize space exploration by delegating several spacecraft decisions to an onboard AI instead of relying on ground control a…
Scale Separation Effects on Simulations of Plasma Turbulence
Jago Edyvean, Tulasi N. Parashar, Tom Simpson +7
Understanding plasma turbulence requires a synthesis of experiments, observations, theory, and simulations. In the case of kinetic plasmas such as the solar wind, the lack of colli…
On a spectral method for -particle bound excitation collisions in kilonovae
Ryan T. Wollaeger, Chris L. Fryer, Robert Chiodi +9
The interaction of -particles with the weakly ionized plasma background is an important mechanism for powering the kilonova transient signal from neutron star mergers. For this…