Quantifying Mass and Magnetic Flux Transport in Saturn's Magnetosphere
Quantifying Mass and Magnetic Flux Transport in Saturn's Magnetosphere
复制标题
量化土星磁层中的质量和磁通量传输
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
Xuanye Ma
中科院分区：
文献类型：
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作者：
B. Neupane;P. Delamere;R. Wilson;Xuanye Ma
径向输运是土星内部驱动磁层中一个重要的动力学过程。径向输运被认为是由离心驱动的交换不稳定性发生的，由通量管内容和通量管熵的梯度决定。在内磁层产生的等离子体必须径向向外传输。等离子体的向外运动拉伸了磁场线，导致磁场重联。重连允许质量被径向传输，同时允许通量循环回到内磁层。土星磁层中质量和磁通量的径向传输都是基于Wilson等人提供的Cassani等离子体光谱仪数据估计的（2017，https：//doi.org/10.1002/2017JA024117），并建议等离子体的径向传输速率约为55 kg/s。净磁通量运输应该是0，但数据表明，净向外的磁通量运输表明存在不同的可能的运输机制在土星的磁盘。
Radial transport is an important dynamical process in Saturn's internally driven magnetosphere. Radial transport is presumed to occur by a centrifugally driven interchange instability, determined by the gradient of flux tube content and flux tube entropy. Plasma produced in the inner magnetosphere must be transported radially outward. The outward motion of the plasma stretches the magnetic field lines, leading to magnetic reconnection. Reconnection allows the mass to be transported radially while allowing the flux to circulate back to the inner magnetosphere. Both radial transport of mass and magnetic flux in Saturn's magnetosphere have been estimated based on Cassani Plasma Spectrometer data provided by Wilson et al. (2017, https://doi.org/10.1002/2017JA024117) and suggesting the radial transport rate of plasma of around 55 kg/s. The net magnetic flux transport should be 0, but the data suggest a net outward magnetic flux transport indicating the existence of different possible transport mechanisms in Saturn's magnetodisc.
影响因子：
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作者：
C. Arridge;K. Khurana;C. Russell;D. Southwood;N. Achilleos;M. Dougherty;A. Coates;H. Leinweber
通讯作者：
C. Arridge;K. Khurana;C. Russell;D. Southwood;N. Achilleos;M. Dougherty;A. Coates;H. Leinweber
1. 行星磁盘区域的质量、动量和能量传输
影响因子：
10.3
作者：
Achilleos N
通讯作者：
Achilleos N