论文标题

站立的MHD波在嵌入不对称磁等离子体环境中的磁板上:表面波

Standing MHD Waves in a Magnetic Slab Embedded in an Asymmetric Magnetic Plasma Environment: Surface Waves

论文作者

Oxley, William, Zsámberger, Noémi Kinga, Erdélyi, Róbert

论文摘要

基于先前的研究,该研究分析了嵌入非磁性外部环境中的磁板中的表面波,在本研究中,该模型是广义的,并添加了外部磁场。假定平板薄,磁性弱。站立谐波模式的频率以少量代表薄板宽度和弱不对称性的少量得出。发现与磁不对称的变化相比,频率更容易改变平板的宽度。得出了第一个谐波与基本模式的频率比,以及平板两侧之间的振幅差,因为这些数量可能是可观察到的,可以与观察结果进行比较,并应用于进行太阳能磁磁性。

Building on a previous study that analyses surface waves in magnetic slabs embedded in a non-magnetic external environment, in this study the model is generalised and external magnetic fields are added. The slab is assumed to be thin, with weak magnetic asymmetry. The frequencies of the standing harmonic modes are derived to leading-order in the small quantities representing the thin slab width and the weak asymmetry. It is found that the frequencies are more prone to changes to the width of the slab than changes in the magnetic asymmetry. The frequency ratio of the first harmonic to the fundamental mode is derived, along with the amplitude difference between the two sides of the slab, as these may be observable quantities that can be compared with observational results and applied to carry out solar magneto-seismology.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源