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首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >Soft X-ray irradiancemeasured by the Solar Aspect Monitor on the Solar Dynamic Observatory Extreme ultraviolet Variability Experiment
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Soft X-ray irradiancemeasured by the Solar Aspect Monitor on the Solar Dynamic Observatory Extreme ultraviolet Variability Experiment

机译：太阳高宽比监视器在太阳动态观测台上测量的软X射线辐照度极紫外变异性实验

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The Solar Aspect Monitor (SAM) is a pinhole camera on the Extreme ultraviolet Variability Experiment (EVE) aboard the Solar Dynamics Observatory. SAM projects the solar disk onto the CCD through a metallic filter designed to allow only solar photons shortward of 7 nm to pass. Contamination from energetic particles and out-of-band irradiance is, however, significant in the SAM observations. We present a technique for isolating the 0.01–7 nm integrated irradiance from the SAM signal to produce the first results of broadband irradiance for the time period from May 2010 to May 2014. The results of this analysis agree with a similar data product from EVE’s EUV SpectroPhotometer to within 25%. We compare our results with measurements from the Student Nitric Oxide Explorer Solar X-ray Photometer and the Thermosphere Ionosphere Mesosphere Energetics and Dynamics Solar EUV Experiment at similar levels of solar activity. We show that the full-disk SAM broadband results compared well to the other measurements of the 0.01–7nm irradiance. We also explore SAM’s capability toward resolving spatial contribution from regions of solar disk in irradiance and demonstrate this feature with a case study of several strong flares that erupted from active regions on 11 March 2011.
机译：太阳纵横比监视器（SAM）是太阳动力天文台上极紫外变异性实验（EVE）上的针孔相机。 SAM通过金属滤光片将太阳圆盘投射到CCD上，该金属滤光片仅允许短于7 nm的太阳光子通过。但是，在SAM观测中，高能粒子和带外辐射的污染非常明显。我们提出了一种从SAM信号中分离出0.01-7 nm积分辐照度的技术，以产生2010年5月至2014年5月这段时间的宽带辐照度的第一个结果。该分析结果与EVE的EUV的类似数据产品一致分光光度计在25％以内。我们将我们的结果与学生一氧化氮探测器太阳X射线光度计和热球电离层中层能量和动力学太阳EUV实验在类似太阳活动水平下的测量结果进行比较。我们显示，全磁盘SAM宽带结果与0.01-7nm辐照度的其他测量结果相比有很好的对比。我们还探索了SAM解决辐照度下太阳圆盘区域空间贡献的能力，并以2011年3月11日从活跃区域喷发的几场强耀斑为例进行了研究，证明了这一特征。

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