论文标题
从M级耀斑和冠状质量喷射的高速喷雾等离子体的光谱测量
A Spectroscopic Measurement of High Velocity Spray Plasma from an M-class Flare and Coronal Mass Ejection
论文作者
论文摘要
与2011年2月16日的M1.5级耀斑相关的冠状质量弹药喷雾血浆表现出850 km/s的多普勒蓝班 - 迄今为止据报道的最大值（UV）（UV）或极端紫外线（EUV）（EUV）solar disk and Corona的紫外线（EUV）。该观察结果是不寻常的，因为没有直接观察发射线（Fe XII 193.51 a），但是多普勒的移位是如此之大，以至于蓝移组件出现在192.82 A的波长窗口中，旨在观察O V，Fe XI和Ca XVII的线路。 Fe XII 195.12一条发射线被用作193.51 A的其余部分的代理。观察结果突出了在观察高度动态的太阳现象时使用窄波长窗口进行光谱仪观察的风险。讨论了大型多普勒在紫外线太阳能光谱仪（包括即将到来的多缝太阳能资源管理器（MUSE）任务）中的后果。
Coronal mass ejection spray plasma associated with the M1.5-class flare of 16 February 2011 is found to exhibit a Doppler blue-shift of 850 km/s - the largest value yet reported from ultraviolet (UV) or extreme ultraviolet (EUV) spectroscopy of the solar disk and inner corona. The observation is unusual in that the emission line (Fe XII 193.51 A) is not observed directly, but the Doppler shift is so large that the blue-shifted component appears in a wavelength window at 192.82 A, intended to observe lines of O V, Fe XI and Ca XVII. The Fe XII 195.12 A emission line is used as a proxy for the rest component of 193.51 A. The observation highlights the risks of using narrow wavelength windows for spectrometer observations when observing highly-dynamic solar phenomena. The consequences of large Doppler shifts for ultraviolet solar spectrometers, including the upcoming Multi-slit Solar Explorer (MUSE) mission, are discussed.
