This paper is concerned with the transverse structure of the ion-ion hybrid (IIH) modes in dipole magnetospheric plasma enriched with heavy ions and inhomogeneous both across the magnetic shells and along the field lines. It was found that the waves can be locked in the transverse resonator between two cut-off surfaces. The wave’s energy in the resonator is concentrated near the geomagnetic equator and across the magnetic shells and propagates in the azimuthal direction. The existence of the transverse resonator results from the difference of the frequencies of the field line oscillations in the radial and azimuthal directions (poloidal and toroidal eigenfrequencies, respectively) and is ultimately caused by the field line curvature. The resonator can be located on the plasmapause where the Alfvén speed has a local minimum, or near the local minimum of the heavy ion’s density. The transverse width of the resonator is estimated to be approximately 0.3 R E

中文翻译：

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偶极磁层等离子体中离子-离子杂波的横向谐振器

本文关注的是偶极磁层等离子体中离子-离子杂化（IIH）模式的横向结构，该等离子体富集了重离子并且在整个磁壳之间以及沿着磁力线都是不均匀的。已经发现，波可以被锁定在两个切面之间的横向谐振器中。谐振器中的波能量集中在地磁赤道附近并穿过磁壳，并沿方位角方向传播。横向谐振器的存在是由于磁力线在径向和方位角方向上的振荡频率不同（分别为极化和环形本征频率）引起的，并最终由磁力线曲率引起。谐振器可以位于等离子暂停处，Alfvén速度具有局部最小值，或接近重离子密度的局部最小值。谐振器的横向宽度估计约为0.3 RE