Mirror mode structures in the solar wind at 0.72 AU
Mirror mode structures in the solar wind at 0.72 AU
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DOI：
10.1029/2009ja014103
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发表时间：
2009-10
影响因子：
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通讯作者：
Tinglong Zhang;Wolfgang Baumjohann;C. Russell;L. Jian;Chuanjun Wang;J. Cao;M. Balikhin;X. Blanco‐Cano;M. Delva;M. Volwerk
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文献类型：
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作者：
Tinglong Zhang;Wolfgang Baumjohann;C. Russell;L. Jian;Chuanjun Wang;J. Cao;M. Balikhin;X. Blanco‐Cano;M. Delva;M. Volwerk
[1]在太阳风中的磁洞，在磁凹陷处几乎没有或没有方向变化，与镜像模式结构有关。最近，Zhang等人（2008年）确定了太阳风中这种镜像模式结构的特征尺寸和形状为0.72 Au。他们发现太阳风中的镜像模式结构沿着磁场方向沿着相当长。在这份报告中，我们研究的大小和形状的孤立的磁孔和列车的孔，分别。我们发现，孤立孔的宽度稍小，比多个孔更长。这一观察表明，太阳风中的镜像模式结构有一个特定的演化历史，其中多个空穴随着时间的推移合并成与磁场平行的更细长的孤立结构。
[1] Magnetic holes in the solar wind with little or no directional change across the magnetic depression are related to mirror mode structures. Recently, Zhang et al. (2008) determined the characteristic size and shape of such mirror mode structures in the solar wind at 0.72 AU. They found that the mirror mode structure in the solar wind is quite elongated along the field direction. In this report, we examine the size and shape of isolated magnetic holes and train of holes, separately. We find that the isolated holes are slightly smaller in width and more elongated than the multiple holes. This observation suggests a particular evolutionary history of mirror mode structures in the solar wind in which multiple holes coalesce with time into isolated structures more elongated parallel to the magnetic field.