标题： STEREO四分量观测：全球日冕波的三维结构及其驱动因素 显示英文标题

标题： STEREO quadrature observations of the 3D structure and driver of a global coronal wave

摘要： 我们展示了首次利用位于四面体构型的两颗太阳地球关系天文台（STEREO）卫星观测到的全球日冕波（“EIT波”）。 该波的起始点在STEREO-B的盘面中心，在STEREO-A上则正好位于边缘。 STEREO极紫外成像（EUVI）仪器的这些前所未有的观测使我们能够深入了解该波的运动学特性、起始过程和三维结构。 该波以恒定速度263±16公里/秒在整个可见的STEREO-B侧半球传播。 从两颗STEREO卫星的观测数据中，我们推断出该波的高度范围为80至100兆米。 将该波的运动学特征与爆发日冕物质抛射（CME）早期阶段的结构进行比较表明，该波是由CME的横向扩展引发的，并随后以接近平静太阳日冕中的快磁声速自由传播。 显示英文摘要

摘要： We present the first observations of a global coronal wave ("EIT wave") from the two Solar Terrestrial Relations Observatory (STEREO) satellites in quadra- ture. The wave's initiation site was at the disk center in STEREO-B and precisely on the limb in STEREO-A. These unprecedented observations from the STEREO Extreme Ultraviolet Imaging (EUVI) instruments enable us to gain insight into the wave's kinematics, initiation and 3D structure. The wave propagates globally over the whole solar hemisphere visible to STEREO-B with a constant velocity of 263+/-16 km/s. From the two STEREO observations we derive a height of the wave in the range of 80-100 Mm. Comparison of the wave kinematics with the early phase of the erupting CME structure indicates that the wave is initiated by the CME lateral expansion, and then propagates freely with a velocity close to the fast magnetosonic speed in the quiet solar corona.