论文标题
从白光：3D中的太阳风瞬变从立体观测中重建太阳风不均匀结构
Reconstructing solar wind inhomogeneous structures from stereoscopic observations in white-light: Solar wind transients in 3D
论文作者
论文摘要
来自Heliosperic Imager-1（HI1）上的白光图像在太阳陆关系天文台（立体声）提供了二维（2D）的全球观点，即从两个角度从内部地球上传播的太阳风瞬变。如何从这些2D图像中检索瞬变的隐藏的三维（3D）特征是有趣但具有挑战性的。在我们以前的工作（Li等，2018）中，开发了一种“相关辅助”方法，以识别基于来自两个立体航天器的同时HI1图像沿太阳 - 地球线传播的太阳风瞬变。在这里，该方法从太阳 - 地球线扩展到整个3D空间，以重建立体声HI1摄像机的公共视野中的太阳风瞬变。我们通过在2010年4月3日至4日在冠状质量弹射（CME）和三个小规模的斑点的3D形状和传播方向来证明该方法的能力。与某些正向建模方法相比，我们发现我们的方法在位置，角度宽度和传播方向方面可靠。根据我们的3D重建结果，揭示了2010年4月3日的角度扭曲的，几乎是北 - 北 - 面向的CME，这表明了CME 3D结构的复杂性。
White-light images from Heliospheric Imager-1 (HI1) onboard the Solar Terrestrial Relations Observatory (STEREO) provide 2-dimensional (2D) global views of solar wind transients traveling in the inner heliosphere from two perspectives. How to retrieve the hidden three-dimensional (3D) features of the transients from these 2D images is intriguing but challenging. In our previous work (Li et al., 2018), a 'correlation-aided' method is developed to recognize the solar wind transients propagating along the Sun-Earth line based on simultaneous HI1 images from two STEREO spacecraft. Here the method is extended from the Sun-Earth line to the whole 3D space to reconstruct the solar wind transients in the common field of view of STEREO HI1 cameras. We demonstrate the capability of the method by showing the 3D shapes and propagation directions of a coronal mass ejection (CME) and three small-scale blobs during 3-4 April 2010. Comparing with some forward modeling methods, we found our method reliable in terms of the position, angular width and propagation direction. Based on our 3D reconstruction result, an angular distorted, nearly North-South oriented CME on 3 April 2010 is revealed, manifesting the complexity of a CME's 3D structure.
