Effects of Coulomb collisions on lower hybrid drift waves inside a laboratory reconnection current sheet

被引：4

作者：

Yoo, Jongsoo ^{[1
]}

Hu, Yibo ^{[2
]}

Ji, Jeong-Young ^{[3
]}

Ji, Hantao ^{[1
,4
]}

Yamada, Masaaki ^{[1
]}

Goodman, Aaron ^{[1
]}

Bergstedt, Kendra ^{[1
]}

Fox, William ^{[1
]}

Alt, Andrew ^{[1
]}

机构：

[1] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

[2] Soochow Univ, Sch Phys Sci & Technol, Suzhou 215006, Peoples R China

[3] Utah State Univ, Dept Phys, Logan, UT 84322 USA

[4] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA

来源：

PHYSICS OF PLASMAS | 2022年 / 29卷 / 02期

关键词：

INSTABILITY;

D O I：

10.1063/5.0052555

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

We have developed a local, linear theoretical model for lower hybrid drift waves that can be used for plasmas in the weakly collisional regime. Two cases with typical plasma and field parameters for the current sheet of the magnetic reconnection experiment have been studied. For a case with a low electron beta (beta(e) = 0.25, high guide field case), the quasi-electrostatic lower hybrid drift wave is unstable, while the electromagnetic lower hybrid drift wave has a positive growth rate for a high-beta(e) case (beta(e) = 8.9, low guide field case). For both cases, including the effects of Coulomb collisions reduces the growth rate but collisional impacts on the dispersion and growth rate are limited ( & LSIM; 20%).

引用

页数：18

共 38 条

[1]

[Anonymous], 1962, Physics of Fully Ionized Gases

[2] Observation of lower hybrid drift instability in the diffusion region at a reconnecting magnetopause [J].