表征指向水星的两个连续日冕物质抛射的三维演化
Characterizing the 3D evolution of two successive CMEs heading for Mercury
AI总结：
本文利用多视角观测和修订的锥形模型，研究了两个连续日冕物质抛射的三维演化及其对水星的潜在影响。
摘要：
我们研究了2022年4月15日从同一活跃区域（AR 12994）爆发的两个连续日冕物质抛射（CMEs），并传播向水星。利用多视角观测，我们应用了修订的锥形模型来确定两个CMEs的三维几何形状和早期运动学。我们的最佳拟合参数表明，CME1和CME2的角跨度分别为84和86，传播方向分别为119.0和110.4（以太阳-地球线为基准），而水星的方向为120.1。推导出的轴倾角分别为28和21，与源区爆发的磁通绳方向一致。高度时间分析表明，CME1和CME2的近似均匀运动速度分别为636和696。本文为预测指向水星及其他太阳行星的CMEs的影响提供了有价值的见解。
英文摘要：
We studied two successive coronal mass ejections (CMEs) that erupted from the same active region (AR 12994) on 2022 April 15 and propagated toward Mercury. Using multi-view observations, we applied the revised cone model to determine the three-dimensional geometry and the early kinematics of the two CMEs. Our best fit parameters indicate large angular extents of 84 and 86 and propagation directions of 119.0 and 110.4 (measured from the Sun Earth line) for CME1 and CME2, respectively, while that of Mercury is 120.1. The derived axis inclinations are 28 for CME1 and 21 for CME2, consistent with the orientation of the erupting flux ropes in the source region. Height time analysis indicates approximately uniform motion speeds of 636 for CME1 and 696 for CME2, respectively. This paper provides valuable insights for predicting the impact of CMEs heading for Mercury as well as other solar planets in the future.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
