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Electron-only reconnection and ion heating in 3D3V hybrid-Vlasov plasma turbulence

Autor: Granier, C., Cerri, S. S., Jenko, F.

We perform 3D3V hybrid-Vlasov simulations of turbulence with quasi-isotropic, compressible injection near ion scales to mimic the Earth's magnetosheath plasma, and investigate the novel electron-only reconnection, recently observed by the NASA's MMS

Externí odkaz: http://arxiv.org/abs/2405.16686

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Gyrofluid simulations of turbulence and reconnection in space plasmas

Autor: Passot, T., Cerri, S. S., Granier, C., Laveder, D., Sulem, P. L., Tassi, E.

Publikováno v: Fundamental Plasma Physics 11 (2024) 100055

A Hamiltonian two-field gyrofluid model is used to investigate the dynamics of an electron-ion collisionless plasma subject to a strong ambient magnetic field, within a spectral range extending from the magnetohydrodynamic (MHD) scales to the electro

Externí odkaz: http://arxiv.org/abs/2401.03863

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Influence of ion-to-electron temperature ratio on tearing instability and resulting subion-scale turbulence in a low-$\beta_e$ collisionless plasma

Autor: Granier, C., Tassi, E., Laveder, D., Passot, T., Sulem, P. L.

A two-field gyrofluid model including ion finite Larmor radius (FLR) corrections, magnetic fluctuations along the ambient field and electron inertia is used to study two-dimensional reconnection in a low $\beta_e$ collisionless plasma, in a plane per

Externí odkaz: http://arxiv.org/abs/2311.01539

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Noncollisional plasmoid instability based on a gyrofluid and gyrokinetic integrated approach

Autor: Granier, C., Numata, R., Borgogno, D., Tassi, E., Grasso, D.

In this work, the development of two-dimensional current sheets with respect to tearing-modes, in collisionless plasmas with a strong guide field, is analysed. During their non-linear evolution, these thin current sheets can become unstable to the fo

Externí odkaz: http://arxiv.org/abs/2302.03073

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Linear stability of magnetic vortex chains in a plasma in the presence of equilibrium electron temperature anisotropy

Autor: Granier, C., Tassi, E.

The linear stability of chains of magnetic vortices in a plasma is investigated analytically in two dimensions by means of a reduced fluid model assuming a strong guide field and accounting for equilibrium electron temperature anisotropy. The chain o

Externí odkaz: http://arxiv.org/abs/2004.03243

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