SEMIEMPIRICAL MODELS OF THE SOLAR ATMOSPHERE. III. SET OF NON-LTE MODELS FOR FAR-ULTRAVIOLET/EXTREME-ULTRAVIOLET IRRADIANCE COMPUTATION
SEMIEMPIRICAL MODELS OF THE SOLAR ATMOSPHERE. III. SET OF NON-LTE MODELS FOR FAR-ULTRAVIOLET/EXTREME-ULTRAVIOLET IRRADIANCE COMPUTATION
复制标题
太阳大气的半经验模型。
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
Hai
中科院分区：
文献类型：
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作者：
Juan Fontenla;W. Curdt;M. Haberreiter;J. Harder;Hai
在中等分辨率下观测到的太阳表面特征的半经验大气模型是了解观测到的太阳光谱辐照度变化的有用工具。论文我描述了一套模型，用于重现观测到的太阳表面特征的辐射光谱，分辨率为0.02弧秒，构成了小尺度特征（如颗粒）的平均值。论文二表明，对以前的低色球层间网络区域模型的修订解释了观测到的红外CO线，以及从亚毫米到厘米波长的紫外线和无线电连续谱。本文（1）表明Ca ii H和K线翼观测也可以用新的宁静太阳合成模型来解释，（2）介绍了遵循论文II思想的新的低色球磁特征模型，（3）介绍了所有宁静太阳和活动区模型的新的上色球结构，以及（4）显示了新的一组模型如何解释光谱辐射亮度和辐照度的EUV/FUV观测。本文还讨论了色球辐射损失的估计，在每个磁功能。新的一套模型提供了一个基础的光谱辐照度合成在EUV/FUV波长的基础上观察到的太阳表面上的功能。
Semiempirical atmospheric models of solar surface features as observed at moderate resolution are useful tools for understanding the observed solar spectral irradiance variations. Paper I described a set of models constructed to reproduce the observed radiance spectrum for solar surface features at ∼2 arcsec resolution that constitute an average over small-scale features such as granulation. Paper II showed that a revision of previous models of low-chromospheric inter-network regions explains the observed infrared CO lines in addition to the UV and radio continuum from submillimeter to centimetric wavelengths. The present paper (1) shows that the Ca ii H and K line wing observations are also explained by the new quiet-Sun-composite model, (2) introduces new low-chromospheric models of magnetic features that follow the ideas in Paper II, (3) introduces new upper chromospheric structures for all quiet-Sun and active-region models, and (4) shows how the new set of models explains EUV/FUV observations of spectral radiance and irradiance. This paper also discusses the chromospheric radiative-loss estimates in each of the magnetic features. The new set of models provides a basis for the spectral irradiance synthesis at EUV/FUV wavelengths based on the features observed on the solar surface.