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      Landau damping in bi-dust ion-acoustic waves

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      , , ,
      Revista mexicana de física
      Sociedad Mexicana de Física
      Dusty plasmas, Plasmas granulares

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          Abstract

          Ion acoustic dust waves in a bi-dust plasma are analyzed in this paper. In order to model this system, we assume the existence of two different kinds of grains, each characterized by a different radius. Relative velocities between grains and charge fluctuations are neglected. In order to derive the dispersion relation of this system, we use the well known hybrid fluid-kinetic model, in which ions are treated kinetically and other species as fluids. In this plasma, waves with non-relative velocities between species leads to damped waves with frequency modes, defined by the grain radius. The induced damping ratio is studied as a function of the grain and ion densities.

          Translated abstract

          En el presente trabajo, analizamos ondas iónico-acústicas de polvo en un plasma con dos tipos de polvo. Para modelar este sistema, asumimos la existencia de dos tipos diferentes de grano, cada uno caracterizado por un diferente radio. Velocidades relativas entre granos y fluctuaciones de cargas son despreciadas. Para derivar la relación de dispersión de este sistema, usamos el bien conocido modelo híbrido fluido-cinético, en el cual los iones son tratados con teoría cinética y las otras especies como fluidos. En este plasma, las ondas sin velocidad relativa entre las especies conducen a ondas amortiguadas con modos de frecuencia definidos por el radio del grano. La razón de amortiguamiento inducido es estudiada en función de las densidades de los granos y de los iones.

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          Introduction to Dusty Plasma Physics

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            Introduction to Dusty Plasma Physics

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              Introduction to Dusty Plasma Physics

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                Author and article information

                Journal
                rmf
                Revista mexicana de física
                Rev. mex. fis.
                Sociedad Mexicana de Física (México, DF, Mexico )
                0035-001X
                May 2006
                : 52
                : suppl 3
                : 224-226
                Affiliations
                [01] Caracas orgnameUniversidad Simón Bolivar orgdiv1Departamento de Fisica Venezuela
                Article
                S0035-001X2006000900065 S0035-001X(06)05200000065
                09746136-0a52-48ab-ae26-0f0dd04489e9

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 13 January 2004
                : 21 July 2004
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 7, Pages: 3
                Product

                SciELO Mexico

                Categories
                Plasma physics

                Dusty plasmas,Plasmas granulares
                Dusty plasmas, Plasmas granulares

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