论文标题
血浆表薄薄，由于近地磁尾等离子体的损失
Plasma sheet thinning due to loss of near-Earth magnetotail plasma
论文作者
论文摘要
一种用于稀疏地球浆片的一维模型[J. K. Chao等人，行星。太空科学。 25，703（1977）]根据当前的破坏（CD）模型（CD）模型，将其扩展到两个维度。稀有波是CD模型的签名组成部分，是用初始干扰生成的。在1D气体模型中，稀疏波以声速传播，并被认为会导致变薄。延伸到简化的等离子板构型的2D气模型，稀疏波被削弱，而稀疏就停止了。通过将磁场添加到裂片中，将磁场添加到2D等离子体模型中，稀疏波很快就会在等离子体表的重新压缩中丢失，但是与1D模型相比，血浆薄片变薄仍然存在，并以较慢的速度独立传播。这表明，等离子体表稀疏的动力学可能由1D模型中没有的板岩相互作用支配，并且可能不支持CD模型假设的行为。
A one-dimensional model for thinning of the Earth's plasma sheet [J. K. Chao et al., Planet. Space Sci. 25, 703 (1977)] according to the Current Disruption (CD) model of auroral breakup is extended to two dimensions. A rarefaction wave, which is a signature component of the CD model, is generated with an initial disturbance. In the 1D gas model, the rarefaction wave propagates tailward at sound velocity and is assumed to cause thinning. Extending to a 2D gas model of a simplified plasma sheet configuration, the rarefaction wave is weakened, and the thinning ceases to propagate. Extending further to a 2D plasma model by adding magnetic field into the lobes, the rarefaction wave is quickly lost in the plasma sheet recompression, but the plasma sheet thinning is still present and propagates independently at a slower velocity than a 1D model suggests. This shows that the dynamics of plasma sheet thinning may be dominated by sheet-lobe interactions that are absent from the 1D model and may not support the behaviour assumed by the CD model.
