关于对太阳耀斑的莱曼-阿尔法观测中的仪器差异
Harry J Greatorex1, Ryan O Milligan1, Ingolf E Dammasch2
1Astrophysics Research Centre, School of Mathematics and Physics, Queen's University Belfast, Belfast, BT7 1NN UK.
Solar physics
|December 2, 2024
概括
仪器的选择显著影响太阳耀斑莱曼-α排放分析. 流量,对比度和能量计算的差异高达五倍,凸显了在太阳耀斑研究中需要仔细选择仪器的必要性.
科学领域:
- 太阳物理 太阳物理
- 等离子体天体物理学
- 太空天气 太空天气
背景情况:
- 莱曼-阿尔法 (Ly) 辐射在太阳耀斑中具有能量意义.
- 由于仪器的进步,现在可以在太阳耀斑中进行常规的Ly观测.
- 了解仪器对Ly测量的影响对于准确的分析至关重要.
研究的目的:
- 为了研究不同的仪器如何影响太阳耀斑期间Ly辐射的分析.
- 为了在多个仪器上对比Ly测量 (流量,对比度,能量,时间) 进行M级火焰的测量.
- 为了指导未来的多仪器研究和对太阳耀斑的仪器选择.
主要方法:
- 分析了由多个仪器观测到的三个M级太阳耀斑,包括GOES-14/EUVS-E,GOES-15/EUVS-E,GOES-16/EXIS-EUVS-B,PROBA2/LYRA,MAVEN/EUVM,ASO-S/LST-SDI,以及SDO/EVE-MEGS-P.
- 在不同的仪器之间比较了Ly的相对流量,过量流量,对比度,总能量和发射时间.
- 在仪器间测量的量化差异.
主要成果:
- 仪器之间相对流量测量的差异是最小的.
- 计算的对比,过量流和能量显示出显著的差异,高达五倍的差异.
- 仪器选择可以显著影响对Ly排放特征的解释.
结论:
- 仪器上的差异可能会导致衍生的耀斑能量和对染色体能量预算的Ly贡献的实质性变化.
- 仔细考虑仪器能力和局限性对于多仪器太阳耀斑研究至关重要.
- 这些发现为解释未来的Ly观测提供了指导,并为仪器设计提供了信息.
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