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- Princeton UniversityUS169 papers
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- Center for Astrophysics Harvard & SmithsonianUS22 papers
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- University of Science and Technology of ChinaCN21 papers
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8 papers · 2 filters
Ion sound instability driven by ion beam
O. Koshkarov, A. I. Smolyakov, I. D. Kaganovich +1
Ion sound instabilities driven by the ion flow in a system of a finite length are considered by analytical and numerical methods. The ion sound waves are modified by the presence o…
Instability-Enhanced Friction in the Presheath of Two-Ion-Species Plasmas
Scott D. Baalrud, Trevor Lafleur, William Fox +1
The speed at which ions enter a sheath is a fundamental property of a plasma that also provides a useful boundary condition in modeling. A recent theory proposed that this can be s…
Variational integration for ideal magnetohydrodynamics with built-in advection equations
Yao Zhou, Hong Qin, J. W. Burby +1
Newcomb's Lagrangian for ideal magnetohydrodynamics (MHD) in Lagrangian labeling is discretized using discrete exterior calculus. Variational integrators for ideal MHD are derived…
Equivalence of two independent calculations of the higher order guiding center Lagrangian
F. I. Parra, I. Calvo, J. W. Burby +2
The difference between the guiding center phase-space Lagrangians derived in [J.W. Burby, J. Squire, and H. Qin, Phys. Plasmas {\bf 20}, 072105 (2013)] and [F.I. Parra, and I. Calv…
Nonmodal growth of the magnetorotational instability
Jonathan Squire, Amitava Bhattacharjee
We analyze the linear growth of the magnetorotational instability (MRI) in the short time limit using nonmodal methods. Our findings are quite different to standard results, illust…
Multi-region relaxed magnetohydrodynamics with anisotropy and flow
Graham R. Dennis, Stuart R. Hudson, Robert L. Dewar +1
We present an extension of the multi-region relaxed magnetohydrodynamics (MRxMHD) equilibrium model that includes pressure anisotropy and general plasma flows. This anisotropic ext…