Publications of the Astronomical Society of Japan | |
Shukla–Spatschek diffusion effects on surface plasma waves in astrophysical turbulent plasmas | |
Jung, Young-Dae1  Lee, Myoung-Jae2  | |
[1] Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY 12180–3590, USADepartment of Applied Physics, Hanyang University, Ansan, Kyunggi-Do 15588, South KoreaDepartment of Bionanotechnology, Hanyang University, Ansan, Kyunggi-Do 15588, South Korea;Department of Physics, Hanyang University, Seoul 04763, South KoreaResearch Institute for Natural Sciences, Hanyang University, Seoul 04763, South Korea | |
关键词: diffusion; plasmas; turbulence; waves; | |
DOI : 10.1093/pasj/psw117 | |
学科分类:天文学(综合) | |
来源: Oxford University Press | |
【 摘 要 】
TheeffectsofShukla–Spatschekturbulentdiffusiononatemporalmodeofsurfacewavespropagatingattheinterfaceofanastrophysicalturbulentplasmaareinvestigated.ThedampingratesforhighandlowmodesofsurfacewavearekineticallyderivedbyemployingtheVlasov–Poissonequationandthespecularreflectionboundarycondition.Wefoundthatthediffusioncausedbythefluctuatingelectricfieldsleadstodampingforbothhighandlowmodesofsurfacewaves.Thehigh-modedampingisenhancedwithanincreaseofthewavenumberandthediffusioncoefficient,butsuppressedbyanincreaseofelectronthermalenergy.Bycontrast,thelow-modedampingissuppressedasthewavenumberandthethermalenergyincreasealthoughitisenhancedasthediffusionincreases.ThevariationofthedampingrateduetotheShukla–Spatschekturbulentdiffusionisalsodiscussed.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
---|---|---|---|
RO201912090768304ZK.pdf | 120KB | download |