Coexistence of Plasmoid and Kelvin–Helmholtz Instabilities in Collisionless Plasma Turbulence
Coexistence of Plasmoid and Kelvin–Helmholtz Instabilities in Collisionless Plasma Turbulence
复制标题
无碰撞等离子体湍流中等离子体团和开尔文-亥姆霍兹不稳定性的共存
DOI:
10.3847/1538-4357/ac582f
复制
发表时间:
2022
期刊:
影响因子:
--
通讯作者:
L. Comisso
中科院分区:
文献类型:
--
作者:
D. Borgogno;D. Grasso;Beatrice Achilli;M. Romé;L. Comisso
The plasmoid formation in collisionless plasmas, where magnetic reconnection within turbulence may take place driven by the electron inertia, is analyzed. We find a complex situation in which, due to the presence of strong velocity shears, the typical plasmoid formation, observed to influence the energy cascade in the magnetohydrodynamic context, has to coexist with the Kelvin–Helmholtz (KH) instability. We find that the current density layers may undergo the plasmoid or the KH instability depending on the local values of the magnetic and velocity fields. The competition among these instabilities affects not only the evolution of the current sheets, that may generate plasmoid chains or KH-driven vortices, but also the energy cascade, that is different for the magnetic and kinetic spectra.
DOI:
10.3847/1538-4357/ab4c33
发表时间:
2019-09
期刊:
The Astrophysical Journal
影响因子:
--
作者:
L. Comisso;L. Sironi
通讯作者:
L. Comisso;L. Sironi
DOI:
10.3847/2041-8213/ab93dc
发表时间:
2020-04
期刊:
The Astrophysical Journal Letters
影响因子:
--
作者:
L. Comisso;E. Sobacchi;L. Sironi
通讯作者:
L. Comisso;E. Sobacchi;L. Sironi
影响因子:
2.2
作者:
Huang, Yi-Min;Comisso, Luca;Bhattacharjee, Amitava
通讯作者:
Bhattacharjee, Amitava