Search Results - "Delzanno, G. L"

Lower hybrid to whistler mode conversion on a density striation by Camporeale, E., Delzanno, G. L., Colestock, P.

“…When a wave packet composed of short wavelength lower hybrid modes traveling in an homogeneous plasma region encounters an inhomogeneity, it can resonantly…”
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An optimal robust equidistribution method for two-dimensional grid adaptation based on Monge–Kantorovich optimization by Delzanno, G.L., Chacón, L., Finn, J.M., Chung, Y., Lapenta, G.

“…A new cell-area equidistribution method for two-dimensional grid adaptation, based on Monge–Kantorovich optimization (or Monge–Kantorovich optimal transport),…”
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Multi-dimensional, fully-implicit, spectral method for the Vlasov–Maxwell equations with exact conservation laws in discrete form by Delzanno, G.L.

“…A spectral method for the numerical solution of the multi-dimensional Vlasov–Maxwell equations is presented. The plasma distribution function is expanded in…”
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Possible potentially threatening co‐orbiting material of asteroid 2000EE104 identified through interplanetary magnetic field disturbances by Lai, H. R, Russell, C. T, Wei, H. Y, Connors, M, Delzanno, G. L

“…Near‐Earth objects (NEOs) with diameters of <300 m are difficult to detect from the Earth with radar or optical telescopes unless and until they approach…”
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Attractive potential around a thermionically emitting microparticle by Delzanno, G L, Lapenta, G, Rosenberg, M

“…We present a simulation study of the charging of a dust grain immersed in a plasma, considering the effect of thermionic electron emission from the grain. It…”
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Modified Jeans instability for dust grains in a plasma by DELZANNO, G. L, LAPENTA, G

“…An investigation of the properties of linear stability is conducted for a system consisting of particles having mass m and charge q, interacting through the…”
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Modification of the Loss Cone for Energetic Particles in the Earth's Inner Magnetosphere by Borovsky, J. E., Yakymenko, K. N., Delzanno, G. L.

“…The behavior of energetic particles in the Earth's dipole and stretched magnetic‐field models is explored with a focus on the shift of the atmospheric loss…”
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High‐Frequency Plasma Waves and Pitch Angle Scattering Induced by Pulsed Electron Beams by Delzanno, G. L., Roytershteyn, V.

“…Cherenkov radiation from a pulse of charge propagating along the magnetic field in a magnetized plasma is analyzed using theory and fluid‐kinetic simulations…”
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Verifying Ray Tracing Amplitude Methods for Global Magnetospheric Modeling by Holmes, Justin C., Delzanno, G. L., Colestock, P. L., Yakymenko, K.

“…Ray tracing is a commonly used method for modeling the propagation of electromagnetic waves in Earth's magnetosphere. To apply ray tracing results to global…”
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On the velocity space discretization for the Vlasov–Poisson system: Comparison between implicit Hermite spectral and Particle-in-Cell methods by Camporeale, E., Delzanno, G.L., Bergen, B.K., Moulton, J.D.

“…We describe a spectral method for the numerical solution of the Vlasov–Poisson system where the velocity space is decomposed by means of an Hermite basis, and…”
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On particle movers in cylindrical geometry for Particle-In-Cell simulations by Delzanno, G.L., Camporeale, E.

“…Three movers for the orbit integration of charged particles in a given electromagnetic field are analyzed and compared in cylindrical geometry. The classic…”
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Dust Divertor for a Tokamak Fusion Reactor by Tang, X. Z., Delzanno, G. L.

“…Micron-size tungsten particulates find their equilibrium position in the magnetized plasma sheath in the normal direction of the divertor surface, but are…”
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Inverse Approach to Spacecraft Charging Simulations by Lira, P. A. Resendiz, Delzanno, G. L., Godinez, H. C., Henderson, M. G., Wohlberg, B., Svyatsky, D.

“…Spacecraft charging is a major topic of space-weather research since charging can lead to spacecraft anomalies, ranging from inconsequential to catastrophic…”
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Future beam experiments in the magnetosphere with plasma contactors: The electron collection and ion emission routes by Delzanno, G. L., Borovsky, J. E., Thomsen, M. F., Moulton, J. D.

“…Experiments where a high‐voltage electron beam emitted by a spacecraft in the low‐density magnetosphere is used to probe the magnetospheric configuration could…”
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Spacecraft‐Charging Mitigation of a High‐Power Electron Beam Emitted by a Magnetospheric Spacecraft: Simple Theoretical Model for the Transient of the Spacecraft Potential by Lucco Castello, F., Delzanno, G. L., Borovsky, J. E., Miars, G., Leon, O., Gilchrist, B. E.

“…A spacecraft‐charging mitigation scheme necessary for the operation of a high‐power electron beam in the low‐density magnetosphere is analyzed. The scheme is…”
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Future beam experiments in the magnetosphere with plasma contactors: How do we get the charge off the spacecraft? by Delzanno, G. L., Borovsky, J. E., Thomsen, M. F., Moulton, J. D., MacDonald, E. A.

“…The idea of using a high‐voltage electron beam with substantial current to actively probe magnetic field line connectivity in space has been discussed since…”
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On the numerical simulation of particle dynamics in the radiation belt: 1. Implicit and semi-implicit schemes by Camporeale, E., Delzanno, G. L., Zaharia, S., Koller, J.

“…The particle dynamics in the Earth's radiation belt is generally modeled by means of a two‐dimensional diffusion equation for the particle distribution…”
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On the numerical simulation of particle dynamics in the radiation belt: 2. Procedure based on the diagonalization of the diffusion tensor by Camporeale, E., Delzanno, G. L., Zaharia, S., Koller, J.

“…In this paper, we conclude the survey and comparison of different numerical methods used to solve the diffusion equation for particle dynamics in the Earth's…”
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Robust, multidimensional mesh-motion based on Monge–Kantorovich equidistribution by Chacón, L., Delzanno, G.L., Finn, J.M.

“…Mesh-motion (r-refinement) grid adaptivity schemes are attractive due to their potential to minimize the numerical error for a prescribed number of degrees of…”
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Modeling of the cold electron plasma density for radiation belt physics by Ripoll, J.-F., Pierrard, V., Cunningham, G. S., Chu, X., Sorathia, K. A., Hartley, D. P., Thaller, S. A., Merkin, V. G., Delzanno, G. L., De Pascuale, S., Ukhorskiy, A. Y.

“…This review focusses strictly on existing plasma density models, including ionospheric source models, empirical density models, physics-based and…”
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