Publication: Local analysis of electrostatic modes in a two-fluid E × B plasma
dc.affiliation.dpto | UC3M. Departamento de Ingeniería Aeroespacial | es |
dc.affiliation.grupoinv | UC3M. Grupo de Investigación: Equipo de Propulsión Espacial y Plasmas (EP2) | es |
dc.contributor.author | Ramos, Jesús J. | |
dc.contributor.author | Bello-Benítez, Enrique | |
dc.contributor.author | Ahedo Galilea, Eduardo Antonio | |
dc.contributor.funder | Comunidad de Madrid | es |
dc.contributor.funder | Ministerio de Ciencia e Innovación (España) | es |
dc.date.accessioned | 2021-06-30T11:42:34Z | |
dc.date.available | 2022-05-26T23:00:04Z | |
dc.date.issued | 2021-05-26 | |
dc.description.abstract | A local study of linear electrostatic modes, applicable to the dynamics perpendicular to the magnetic field in a plasma with crossed electric and magnetic fields, is presented. The analysis is based on a two-fluid model that takes into account the finite-electron-gyroradius effects through a rigorous gyroviscosity tensor and includes a dissipative friction force in the electron momentum equation. A comprehensive dispersion relation, valid for arbitrary electron temperature, is derived, which describes properly all the relevant waves for wavelengths longer than the electron Larmor radius. For a homogeneous and dissipationless plasma, such a fluid dispersion relation agrees with the long-wavelength limit of the kinetic electron–cyclotron-drift instability dispersion relation that extends the results to arbitrary short wavelengths. The general fluid dispersion relation covers different parametric regimes that depend on the relative ion-to-electron drift velocity and on the presence of equilibrium inhomogeneities and/or dissipation. Depending on such conditions, its roots yield as follows: two-stream instabilities, driven solely by the relative drift between species; drift-gradient instabilities, driven by the combination of the relative drift and equilibrium gradients; and drift-dissipative instabilities, driven by the combination of the relative drift and friction. Instability thresholds are determined and some distinctive unstable modes are described analytically. | en |
dc.description.sponsorship | This research was funded mainly by the Comunidad de Madrid (Spain), under PROMETEO-CM project, with Grant No. Y2018/NMT-4750. Enrique Bello-Benítez is supported by Spain's Ministerio de Ciencia, Innovación y Universidades, under Grant No. FPU18/03686. Jesús Ramos and Eduardo Ahedo acknowledge support by the ESPEOS project, funded by the Agencia Estatal de Investigación (Spain's National Research and Development Plan), under Grant No. PID2019-108034 RB-I00/AEI/10.13039/501100011033. | en |
dc.format.extent | 12 | |
dc.identifier.bibliographicCitation | Ramos, J. J., Bello-Benítez, E., & Ahedo, E. (2021). Local analysis of electrostatic modes in a two-fluid E × B plasma. Physics of Plasmas, 28(5), 052115 | |
dc.identifier.doi | https://doi.org/10.1063/5.0039341 | |
dc.identifier.issn | 1070-664X | |
dc.identifier.publicationfirstpage | 1 | |
dc.identifier.publicationissue | 5 (052115) | |
dc.identifier.publicationlastpage | 12 | |
dc.identifier.publicationtitle | Physics of Plasmas | |
dc.identifier.publicationvolume | 28 | |
dc.identifier.uri | https://hdl.handle.net/10016/32963 | |
dc.identifier.uxxi | AR/0000028045 | |
dc.language.iso | eng | |
dc.publisher | AIP Publishing | |
dc.relation.projectID | Comunidad de Madrid. Y2018/NMT-4750 | |
dc.relation.projectID | Gobierno de España. PID2019-108034RB-I00 | |
dc.rights | © 2021 Author(s). Published under an exclusive license by AIP Publishing | |
dc.rights.accessRights | open access | |
dc.subject.eciencia | Física | es |
dc.title | Local analysis of electrostatic modes in a two-fluid E × B plasma | en |
dc.type | research article | * |
dc.type.hasVersion | VoR | * |
dspace.entity.type | Publication |
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