This Is Auburn

Show simple item record

Scalings for the Alfven-cyclotron instability: Linear dispersion theory and hybrid particle-in-cell simulations


Metadata FieldValueLanguage
dc.creatorGary, S. Peter
dc.creatorFu, Xiangrong
dc.creatorCowee, Misa M.
dc.creatorWinske, Dan
dc.creatorLiu, Kaijun
dc.date.accessioned2022-10-27T19:01:03Z
dc.date.available2022-10-27T19:01:03Z
dc.date.created2017
dc.identifier10.1002/2016JA023425en_US
dc.identifier.urihttps://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2016JA023425en_US
dc.identifier.urihttps://aurora.auburn.edu/handle/11200/50432
dc.identifier.urihttp://dx.doi.org/10.35099/aurora-500
dc.description.abstractThe Alfven-cyclotron instability is driven by an ion temperature anisotropy such that T-perpendicular to/T-|| >1 where and || denote directions perpendicular and parallel to a uniform background magnetic field B-o, respectively. The computations presented here consider a model of a magnetized, homogeneous, collisionless plasma. Two representations of the proton velocity distribution are considered: a single bi-Maxwellian and a magnetospheric-like configuration of two components, a more dense, relatively cool, isotropic component and a less dense, relatively hot, bi-Maxwellian component which drives the instability. Only wave propagation parallel to B-o is considered. Using numerical solutions of the full kinetic linear dispersion equation, concise analytic expressions for the scaling of the dimensionless maximum instability growth rate and the corresponding dimensionless real frequency are derived as functions of three dimensionless variables: the hot proton temperature anisotropy, the relative hot proton density, and the hot proton (||). Furthermore, using one-dimensional hybrid particle-in-cell simulations of this same instability, a third relation for the scaling of the maximum amplitude of the dimensionless fluctuating magnetic field energy density is derived.en_US
dc.formatPDFen_US
dc.publisherAmerican Geophysical Unionen_US
dc.relation.ispartofJournal of Geophysical Research: Space Physicsen_US
dc.relation.ispartofseries2169-9380en_US
dc.rights© American Geophysical Union 2017. This is this the version of record co-published by the American Geophysical Union and John Wiley & Sons, Inc. It is made available under the CC-BY-NC-ND 4.0 license. Item should be cited as: Gary, S. P., Fu, X., Cowee, M. M., Winske, D., & Liu, K. (2017). Scalings for the Alfvén‐cyclotron instability: Linear dispersion theory and hybrid particle‐in‐cell simulations. Journal of Geophysical Research: Space Physics, 122(1), 464-474.en_US
dc.titleScalings for the Alfven-cyclotron instability: Linear dispersion theory and hybrid particle-in-cell simulationsen_US
dc.typeTexten_US
dc.type.genreJournal Article, Academic Journalen_US
dc.citation.volume122en_US
dc.citation.issue1en_US
dc.citation.spage464en_US
dc.citation.epage474en_US
dc.description.statusPublisheden_US
dc.description.peerreviewYesen_US
dc.creator.orcid0000-0003-3117-4030en_US
dc.creator.orcid0000-0001-5882-1328en_US
dc.creator.orcid0000-0002-4305-6624en_US
dc.creator.orcid0000-0002-4655-2316en_US

Files in this item

Show simple item record