A review of instrument techniques to measure magnetospheric cold electrons and ions

A review of the instruments and techniques to directly measure the full distributions of the cold-ion and cold-electron populations in the magnetosphere is presented. Relatively few studies have focused on the cold plasma populations of the magnetosphere due to difficulties associated with obtaining...

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Main Authors: Carlos A. Maldonado, Pedro A. Resendiz Lira, Gian L. Delzanno, Brian A. Larsen, Daniel B. Reisenfeld, Victoria Coffey
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-01-01
Series:Frontiers in Astronomy and Space Sciences
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fspas.2022.1005845/full
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author Carlos A. Maldonado
Pedro A. Resendiz Lira
Gian L. Delzanno
Brian A. Larsen
Daniel B. Reisenfeld
Victoria Coffey
author_facet Carlos A. Maldonado
Pedro A. Resendiz Lira
Gian L. Delzanno
Brian A. Larsen
Daniel B. Reisenfeld
Victoria Coffey
author_sort Carlos A. Maldonado
collection DOAJ
description A review of the instruments and techniques to directly measure the full distributions of the cold-ion and cold-electron populations in the magnetosphere is presented. Relatively few studies have focused on the cold plasma populations of the magnetosphere due to difficulties associated with obtaining measurements. The cold particle populations are defined here as those with total energy approximately <100 eV which is an energy range for which measurements are difficult (regardless of species), but which often make up the bulk of the plasma density. These populations have known and suspected impacts on the structure and dynamics of the magnetosphere but to date have not yet been measured adequately. The lack of accurate measurements cold ion and electron populations through the magnetosphere makes closure of these science questions extremely difficult if not impossible. Reaching closure will require innovations in plasma spectrometers and associated techniques required to obtain high-fidelity measurements of the cold ion and electron populations in the magnetosphere. This paper seeks to review the instruments and techniques that have been used to date and present possible options for future missions.
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spelling doaj.art-8d6b6d42a3c548c48e0750d8e4e916512023-01-12T05:26:16ZengFrontiers Media S.A.Frontiers in Astronomy and Space Sciences2296-987X2023-01-01910.3389/fspas.2022.10058451005845A review of instrument techniques to measure magnetospheric cold electrons and ionsCarlos A. Maldonado0Pedro A. Resendiz Lira1Gian L. Delzanno2Brian A. Larsen3Daniel B. Reisenfeld4Victoria Coffey5Intelligence and Space Research Division, Los Alamos National Laboratory, Los Alamos, NM, United StatesTheoretical Division, Los Alamos National Laboratory, Los Alamos, NM, United StatesTheoretical Division, Los Alamos National Laboratory, Los Alamos, NM, United StatesIntelligence and Space Research Division, Los Alamos National Laboratory, Los Alamos, NM, United StatesIntelligence and Space Research Division, Los Alamos National Laboratory, Los Alamos, NM, United StatesMarshall Space Flight Center, Huntsville, AL, United StatesA review of the instruments and techniques to directly measure the full distributions of the cold-ion and cold-electron populations in the magnetosphere is presented. Relatively few studies have focused on the cold plasma populations of the magnetosphere due to difficulties associated with obtaining measurements. The cold particle populations are defined here as those with total energy approximately <100 eV which is an energy range for which measurements are difficult (regardless of species), but which often make up the bulk of the plasma density. These populations have known and suspected impacts on the structure and dynamics of the magnetosphere but to date have not yet been measured adequately. The lack of accurate measurements cold ion and electron populations through the magnetosphere makes closure of these science questions extremely difficult if not impossible. Reaching closure will require innovations in plasma spectrometers and associated techniques required to obtain high-fidelity measurements of the cold ion and electron populations in the magnetosphere. This paper seeks to review the instruments and techniques that have been used to date and present possible options for future missions.https://www.frontiersin.org/articles/10.3389/fspas.2022.1005845/fullcold plasmamagnetosphereionselectronsmagnetic reconnection
spellingShingle Carlos A. Maldonado
Pedro A. Resendiz Lira
Gian L. Delzanno
Brian A. Larsen
Daniel B. Reisenfeld
Victoria Coffey
A review of instrument techniques to measure magnetospheric cold electrons and ions
Frontiers in Astronomy and Space Sciences
cold plasma
magnetosphere
ions
electrons
magnetic reconnection
title A review of instrument techniques to measure magnetospheric cold electrons and ions
title_full A review of instrument techniques to measure magnetospheric cold electrons and ions
title_fullStr A review of instrument techniques to measure magnetospheric cold electrons and ions
title_full_unstemmed A review of instrument techniques to measure magnetospheric cold electrons and ions
title_short A review of instrument techniques to measure magnetospheric cold electrons and ions
title_sort review of instrument techniques to measure magnetospheric cold electrons and ions
topic cold plasma
magnetosphere
ions
electrons
magnetic reconnection
url https://www.frontiersin.org/articles/10.3389/fspas.2022.1005845/full
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