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dc.contributor.authorGuio, Patrick
dc.contributor.authorPécseli, Hans L
dc.date.accessioned2021-09-23T11:57:49Z
dc.date.available2021-09-23T11:57:49Z
dc.date.issued2020-04-27
dc.description.abstractIon sound waves are studied in a plasma subject to gravitational field giving rise to vertically inhomogeneous steady-state plasma conditions. Such systems are interesting by exhibiting a wave growth that is a result of energy flux conservation for pulses propagating in an inhomogeneous system. The increase of the amplitude of a pulse as it propagates along the density gradient in the direction of decreasing density gives rise to an enhanced interaction between waves and plasma particles that can be modeled by a modified Korteweg–de Vries equation. Analytical results are compared with numerical particle-in-cell simulations of the problem. Our code assumes isothermally Boltzmann distributed electrons resulting in a nonlinear Poisson equation. The ion component is treated as a collection of individual particles interacting through collective electric fields. Deviations from quasineutrality are allowed for.en_US
dc.identifier.citationGuio P, Pécseli H. Weakly nonlinear ion sound waves in gravitational systems. Physical review. E. 2020;101(4)en_US
dc.identifier.cristinIDFRIDAID 1809853
dc.identifier.doi10.1103/PhysRevE.101.043210
dc.identifier.issn2470-0045
dc.identifier.issn2470-0053
dc.identifier.urihttps://hdl.handle.net/10037/22647
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.journalPhysical review. E
dc.rights.accessRightsopenAccessen_US
dc.rights.holder©2020 American Physical Societyen_US
dc.subjectVDP::Mathematics and natural science: 400::Physics: 430en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Fysikk: 430en_US
dc.titleWeakly nonlinear ion sound waves in gravitational systemsen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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