论文标题
星际冠状质量弹性中的湍流，间歇性和跨尺度能量转移
Turbulence, intermittency and cross-scale energy transfer in an interplanetary coronal mass ejection
论文作者
论文摘要
在2014年9月12日至14日检测到的行星际冠状质量射血（ICME）之前，之中和之后，NASA的风架飞船在2014年9月12日检测到的太阳风测量值已被用于检查磁流失动力学（MHD）的几种特性。获得了磁场，速度和质子密度测量的光谱指数和平坦度缩放指数，并提供了ICME及其周围不同子区域内湍流特征的标准描述。在此分析之后，对同一子区域中各向同性，不可压缩的MHD湍流的三阶时刻缩放定律的验证，这证实了ICME等离子体中湍流的完全发展的性质。还估计了每个ICME子区域和周围太阳风中的能量传递速率。在ICME鞘中发现了一个异常高的值，并伴随着增强的间歇性，可能与与ICME的到来相关的强大能量注入有关。
Solar wind measurements carried out by NASA's Wind spacecraft before, during and after the passing of an interplanetary coronal mass ejection (ICME) detected on 12-14 September 2014 have been used in order to examine several properties of magnetohydrodynamic (MHD) turbulence. Spectral indices and flatness scaling exponents of magnetic field, velocity and proton density measurements were obtained, and provided a standard description of the characteristics of turbulence within different sub-regions of the ICME and its surroundings. This analysis was followed by the validation of the third-order moment scaling law for isotropic, incompressible MHD turbulence in the same sub-regions, which confirmed the fully developed nature of turbulence in the ICME plasma. The energy transfer rate was also estimated in each ICME sub-region and in the surrounding solar wind. An exceptionally high value was found within the ICME sheath, accompanied by enhanced intermittency, possibly related to the powerful energy injection associated with the arrival of the ICME.
