Bolaños Simon, Sladkov Andrey, Smets Roch, Chen Sophia N, Grisollet Alain, Filippov Evgeny, Henares Jose-Luis, Nastasa Viorel, Pikuz Sergey, Riquier Raphël, Safronova Maria, Severin Alexandre, Starodubtsev Mikhail, Fuchs Julien
LULI - CNRS, CEA, UPMC Univ Paris 06 : Sorbonne Université, Ecole Polytechnique, Institut Polytechnique de Paris, F-91128, Paris, Palaiseau cedex, France.
LPP, Sorbonne Université, CNRS, Ecole Polytechnique, F-91128, Palaiseau, France.
Nat Commun. 2022 Oct 28;13(1):6426. doi: 10.1038/s41467-022-33813-9.
Magnetic reconnection can occur when two plasmas, having anti-parallel components of the magnetic field, encounter each other. In the reconnection plane, the anti-parallel component of the field is annihilated and its energy released in the plasma. Here, we investigate through laboratory experiments the reconnection between two flux tubes that are not strictly anti-parallel. Compression of the anti-parallel component of the magnetic field is observed, as well as a decrease of the reconnection efficiency. Concomitantly, we observe delayed plasma heating and enhanced particle acceleration. Three-dimensional hybrid simulations support these observations and highlight the plasma heating inhibition and reconnection efficiency reduction for these obliquely oriented flux tubes.
当两个具有磁场反平行分量的等离子体相互碰撞时，就会发生磁重联。在重联平面中，磁场的反平行分量被湮灭，其能量在等离子体中释放。在这里，我们通过实验室实验研究两个并非严格反平行的通量管之间的重联。我们观察到磁场反平行分量的压缩以及重联效率的降低。同时，我们还观察到等离子体加热延迟和粒子加速增强。三维混合模拟支持了这些观测结果，并突出了这些倾斜取向的通量管的等离子体加热抑制和重联效率降低的情况。
