论文标题
PSP在$ {\ sim} $ 0.5〜AU观察到的隐形流媒体CME的喷发和行星际演变
Eruption and Interplanetary Evolution of a Stealthy Streamer-Blowout CME Observed by PSP at ${\sim}$0.5~AU
论文作者
论文摘要
流媒体吹牛的冠状质量弹出（SBO-CME）是太阳最小值期间的主要CME人群。尽管它们通常很慢，并且缺乏明显的低序列特征，但它们可能会导致地磁风暴。借助推断的冠状场和对LIMB低电晕的远程观察，我们研究了SBO-CME的启动，此前是连续的CME爆发，与多阶段的交感神经突破场景一致。从内旋磷帕克太阳能探针（PSP）观测值，很明显，SBO-CME正在与围绕CME通量绳围绕的Heliospher磁场和血浆板结构相互作用。我们估计CME方位角磁通量的$ 18 \，\ pm \，11 \％$已通过磁重新连接侵蚀，并且在达到$ {\ sim} 0.35 $ au的地球距离距离之后，从太阳达到了$ {\ sim} 0.35 $ au。这项观察性研究对理解SBO-CME的启动及其与Heliospher环境的相互作用具有重要意义。
Streamer-blowout coronal mass ejections (SBO-CMEs) are the dominant CME population during solar minimum. Although they are typically slow and lack clear low-coronal signatures, they can cause geomagnetic storms. With the aid of extrapolated coronal fields and remote observations of the off-limb low corona, we study the initiation of an SBO-CME preceded by consecutive CME eruptions consistent with a multi-stage sympathetic breakout scenario. From inner-heliospheric Parker Solar Probe (PSP) observations, it is evident that the SBO-CME is interacting with the heliospheric magnetic field and plasma sheet structures draped about the CME flux rope. We estimate that $18 \, \pm \, 11\%$ of the CME's azimuthal magnetic flux has been eroded through magnetic reconnection and that this erosion began after a heliospheric distance of ${\sim}0.35$ AU from the Sun was reached. This observational study has important implications for understanding the initiation of SBO-CMEs and their interaction with the heliospheric surroundings.
