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Local analysis of electrostatic modes in a two-fluid E × B plasma

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dc.affiliation.dptoUC3M. Departamento de Ingeniería Aeroespaciales
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Equipo de Propulsión Espacial y Plasmas (EP2)es
dc.contributor.authorRamos, Jesús J.
dc.contributor.authorBello-Benítez, Enrique
dc.contributor.authorAhedo Galilea, Eduardo Antonio
dc.contributor.funderComunidad de Madrides
dc.contributor.funderMinisterio de Ciencia e Innovación (España)es
dc.date.accessioned2021-06-30T11:42:34Z
dc.date.available2022-05-26T23:00:04Z
dc.date.issued2021-05-26
dc.description.abstractA 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.sponsorshipThis 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.extent12
dc.identifier.bibliographicCitationRamos, 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.doihttps://doi.org/10.1063/5.0039341
dc.identifier.issn1070-664X
dc.identifier.publicationfirstpage1
dc.identifier.publicationissue5 (052115)
dc.identifier.publicationlastpage12
dc.identifier.publicationtitlePhysics of Plasmas
dc.identifier.publicationvolume28
dc.identifier.urihttps://hdl.handle.net/10016/32963
dc.identifier.uxxiAR/0000028045
dc.language.isoeng
dc.publisherAIP Publishing
dc.relation.projectIDComunidad de Madrid. Y2018/NMT-4750
dc.relation.projectIDGobierno de España. PID2019-108034RB-I00
dc.rights© 2021 Author(s). Published under an exclusive license by AIP Publishing
dc.rights.accessRightsopen access
dc.subject.ecienciaFísicaes
dc.titleLocal analysis of electrostatic modes in a two-fluid E × B plasmaen
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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