2026
article
OpenAlex
Kevin A. Shipman, Patrick L. Colestock, Gian Luca Delzanno, Mark A. Gilmore et autres
In this paper we investigate how a magnetospheric plasma sheath effects the impedance of a spaceborne very low frequency (VLF) dipole. It has been suggested that a VLF antenna can be used to generate whistler waves to remediate magnetically trapped high-energy electrons …
us
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Accès ouvert
2024
article
OpenAlex
Patrick L. Colestock
Abstract Not Provided
us
(code pays fourni par la source)
Accès ouvert
2023
article
OpenAlex
J. C. Holmes, Gian Luca Delzanno, Patrick L. Colestock, K. Yakymenko
Abstract 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 models of wave‐particle interaction such as energetic electron scattering, it is useful to map the discrete rays …
us
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2022
conference-paper
OpenAlex
Kevin A. Shipman, Patrick L. Colestock, Daniil Svyatsky, M. Gilmore et autres
A powerful coronal mass ejection or a high-altitude nuclear explosion (HANE) can produce an artificial radiation belt containing high-energy electrons (~1MeV) in the earth’s upper atmosphere that would populate its magnetosphere. Some of these high-energy electrons become trapped along the Earth’s magnetic …
us
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2021
conference-abstract
OpenAlex
J. C. Holmes, Gian Luca Delzanno, Christopher A. Jeffery, Patrick L. Colestock
Whistler mode waves in the Earth's inner magnetosphere playa key role in local energy transfer between particle populations and in larger scale processes such as scattering of trapped energetic electrons into the atmospheric loss cone. A body of recent research has focused …
us
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Accès ouvert
2020
article
OpenAlex
B.E. Carlsten, Patrick L. Colestock, Gregory Scott Cunningham, Gian Luca Delzanno et autres
Ganguli and Crabtree have written a comment about a recent article by the authors listed above on radiation-belt remediation. They have objected to our evaluation of the Naval Research Laboratory's chemical release concept which states that this concept may be impractical due …
us
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Accès ouvert
2020
report
OpenAlex
Nikolai Yampolsky, Kevin A. Shipman, Patrick L. Colestock, Quinn R. Marksteiner et autres
The presentation goes through assumptions made for the study, sections on plasma dispersion, whistler modes for RBR, excitation of plane waves with antenna, dipole vs loop antenna, verification of results, excitation of whistler waves with electron beams, assumptions for the model, distribution …
us
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2019
article
OpenAlex
B.E. Carlsten, Patrick L. Colestock, Gregory Scott Cunningham, Gian Luca Delzanno et autres
Energetic electrons can be trapped in Earth’s magnetic field, forming the radiation belts (also known as the Van Allen Belts). These electrons, which can originate from the solar wind or a high-altitude nuclear explosion (HANE), have the potential to damage satellites in …
us
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2019
conference-abstract
OpenAlex
Kevin A. Shipman, Patrick L. Colestock, Quinn R. Marksteiner, Gian Luca Delzanno et autres
2018
conference-abstract
OpenAlex
Kevin A. Shipman, Patrick L. Colestock, B.E. Carlsten, M. Gilmore
2014
article
OpenAlex
Jean‐François Ripoll, J. Zinn, Christopher A. Jeffery, Patrick L. Colestock
Abstract In this paper, we first study the dynamics of hot shocks in air in cylindrical geometry coupled to multiband radiation transport and detailed air chemistry. The wide energy and length scale ranges which are covered herein includes and exceeds the ones …
us, fr
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2014
article
OpenAlex
Jean‐François Ripoll, J. Zinn, Patrick L. Colestock, Christopher A. Jeffery
Abstract In this paper, we develop a model of electrical discharge in air for the simulation of some of the electrical processes involved in lightning discharges, as in lightning return strokes and dart leaders. The discharge is initiated by a vertical electrical …
us, fr
(code pays fourni par la source)