论文标题
2013年8月19日冠状质量弹出的复杂结构的证据。径向和纵向进化
Evidence of a complex structure within the 2013 August 19 coronal mass ejection. Radial and longitudinal evolution in the inner heliosphere
论文作者
论文摘要
上下文：2013年8月19日下旬，从地球的角度来看，位于遥远的中央子午线附近的活跃地区爆发了冠状质量弹出（CME）。立体声A，立体声B和SOHO航天器遥不可及事件及其随附的冲击。行星际对应物（ICME）在0.3 au附近拦截了截距，以及在1 au附近的立体声A和立体声B拦截，它们在地增多78°隔开。这项研究的主要目的是遵循ICME在整个内部地球层的径向和纵向演化，并检查在太阳能盘上观察到的不同磁通路旋转构型的可能场景，并在Messenger-A的位置进行了测量，并在Messenger-A的位置进行了测量，并在Heliologe-uniologe-uniologe-uniologe-uniologe-uniologe-dectere-flank和Flank上分离，并在contereo-bele中分离。结果：我们发现在立体声-B处检测到的磁通路结构属于Messenger和Stereo-A的同一ICME。在立体声B处推导的相反的螺旋性可能是由于航天器拦截了结构的一条腿远离磁通杆轴，而立体声A和Messenger则穿过磁通绳的核心。在Messenger和StereoA处测量的不同通量绳方向可能是因为两个航天器测量了弯曲的，高度扭曲且相当复杂的磁通循环拓扑。 ICME在内部地层内的进化可能会造成额外的变形，例如，到达1 Au时，西侧的传播速度比东侧更快。结论：这项工作说明了环境条件如何显着影响CME/ICME的扩展和传播，从而引入了已经不对称的喷发，以及如何与当前可用的可用模型直接重建这些复杂的结构。
Context: Late on 2013 August 19, a coronal mass ejection (CME) erupted from an active region located near the far-side central meridian from Earth's perspective. The event and its accompanying shock were remotely observed by the STEREO-A, STEREO-B and SOHO spacecraft. The interplanetary counterpart (ICME) was intercepted by MESSENGER near 0.3 au, and by both STEREO-A and STEREO-B, near 1 au, which were separated by 78° in heliolongitude. The main objective of this study is to follow the radial and longitudinal evolution of the ICME throughout the inner heliosphere, and to examine possible scenarios for the different magnetic flux-rope configuration observed on the solar disk, and measured in situ at the locations of MESSENGER and STEREO-A, separated by 15° in heliolongitude, and at STEREO-B, which detected the ICME flank. Results: We find that the magnetic flux-rope structure detected at STEREO-B belongs to the same ICME detected at MESSENGER and STEREO-A. The opposite helicity deduced at STEREO-B, might be due to the spacecraft intercepting one of the legs of the structure far from the flux-rope axis, while STEREO-A and MESSENGER are crossing through the core of the magnetic flux rope. The different flux-rope orientations measured at MESSENGER and STEREO-A arise probably because the two spacecraft measure a curved, highly distorted and rather complex magnetic flux-rope topology. The ICME may have suffered additional distortion in its evolution in the inner heliosphere, such as the west flank is propagating faster than the east flank when arriving 1 au. Conclusions: This work illustrates how the ambient conditions can significantly affect the expansion and propagation of the CME/ICME, introducing additional irregularities to the already asymmetric eruption, and how these complex structures cannot be directly reconstructed with the current models available.
