论文标题
对具有紫外线和WL冠状动物的冠状质量弹出的广泛研究：对多波长观测的需求
Extensive Study of a Coronal Mass Ejection with UV and WL coronagraphs: the need for multi-wavelength observations
论文作者
论文摘要
冠状质量弹出（CME）通常在不同的频段中显示出不同的特征。通过将白光（WL）和紫外线（UV）带中的数据组合在一起，我们已经在快速CME中应用了不同的技术来推导血浆温度，电子密度，内部径向速度等。它们是对诊断能力的广泛测试，该测试是针对未来多渠道冠状动脉（例如太阳能轨道/metis，aso-s/lst，proba-3/aspiics）提供的观察结果开发的。所涉及的数据包括由SOHO/Lasco Coronagraphs获取的WL图像，以及由UV（H I Ly $ ly $α$和O VI 1032 {aa}线）和WL Channels和WL Channels和WL Channels测得的SOHO/UVCS测量的强度。 UVCS WL通道的数据首次使用极化比率技术测量CME位置角度。通过组合紫外线和WL数据来估计CME核心和空隙的血浆电子和有效温度。由于CME的膨胀和突出段的可能存在，CME核心的过境会导致电子温度降低至$ 10^{5} $K。前面被观察到ly $α$强度的显着调度，与由于沿线沿沿线的等化供应和流动而宽的线宽度相关。 CME体内等离子体速度的2D分布是从LASCO图像中重建的，并用于限制LY $α$线的多普勒调度，并通过METIS和LST模拟未来的CME观察结果。
Coronal Mass Ejections (CMEs) often show different features in different band-passes. By combining data in white-light (WL) and ultraviolet (UV) bands, we have applied different techniques to derive plasma temperatures, electron density, internal radial speed, etc, within a fast CME. They serve as extensive tests of the diagnostic capabilities, developed for the observations provided by future multi-channel coronagraphs (such as Solar Orbiter/Metis, ASO-S/LST, PROBA-3/ASPIICS). The involved data include WL images acquired by SOHO/LASCO coronagraphs, and intensities measured by SOHO/UVCS at 2.45 R$_{\odot}$ in the UV (H I Ly$α$ and O VI 1032 {AA} lines) and WL channels. Data from the UVCS WL channel have been employed for the first time to measure the CME position angle with polarization-ratio technique. Plasma electron and effective temperatures of the CME core and void are estimated by combining UV and WL data. Due to the CME expansion and the possible existence of prominence segments, the transit of the CME core results in decreases of the electron temperature down to $10^{5}$ K. The front is observed as a significant dimming in the Ly$α$ intensity, associated with a line broadening due to plasma heating and flows along the line-of-sight. The 2D distribution of plasma speeds within the CME body is reconstructed from LASCO images and employed to constrain the Doppler dimming of Ly$α$ line, and simulate future CME observations by Metis and LST.
