等离子体层与电离层间密度管道的地基实时成像
空间物理
2015-04-27 v1 地球与行星天体物理
摘要
太阳光照使地球大气电离，在地球磁层内形成复杂的多层等离子体环境，最内层为电离层和等离子体层。普遍认为等离子体层内嵌有沿地球磁场排列的圆柱形密度结构（管道），但直接证据一直稀缺。本文报道了利用一种新型地基成像技术，首次直接大视角观测到连接上电离层与内等离子体层的大规模场向管道阵列。我们通过特征追踪和视差分析确定了它们的高度和运动。这些结构排列异常有序，表现为规则间隔、交替出现的过密和欠密管状结构，并与地球磁场高度对齐。这些发现为此类结构的存在提供了首个直接视觉证据。
引用
@article{arxiv.1504.06470,
title = {Real-time imaging of density ducts between the plasmasphere and ionosphere},
author = {Shyeh Tjing Loi and Tara Murphy and Iver H. Cairns and Frederick W. Menk and Colin L. Waters and Philip J. Erickson and Cathryn M. Trott and Natasha Hurley-Walker and John Morgan and Emil Lenc and Andre R. Offringa and Martin E. Bell and Ronald D. Ekers and B. M. Gaensler and Colin J. Lonsdale and Lu Feng and Paul J. Hancock and David L. Kaplan and G. Bernardi and J. D. Bowman and F. Briggs and R. J. Cappallo and A. A. Deshpande and L. J. Greenhill and B. J. Hazelton and M. Johnston-Hollitt and S. R. McWhirter and D. A. Mitchell and M. F. Morales and E. Morgan and D. Oberoi and S. M. Ord and T. Prabu and N. Udaya Shankar and K. S. Srivani and R. Subrahmanyan and S. J. Tingay and R. B. Wayth and R. L. Webster and A. Williams and C. L. Williams},
journal= {arXiv preprint arXiv:1504.06470},
year = {2015}
}
备注
Accepted for publication in Geophysical Research Letters