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arXiv 2302.04253astro-ph.SR
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太阳色球层中(声)波加热估计的系统学的约束

Constraining the systematics of (acoustic) wave heating estimates in the solar chromosphere

Momchil E. Molnar, Kevin P. Reardon, Steven R. Cranmer, Adam F. Kowalski, Ivan Milic

摘要:

声波加热被认为对维持太阳色球层在其观测状态所需的能量输入的缺失有很大贡献。通过与三维辐射磁流体动力学(rMHD)\emph{Bifrost}模型的比较,研究了上层光球中声波截止点以上的波向色球层的传播,并解释了紫外和光学光谱观测结果,以限制太阳大气中声波的加热贡献。利用界面区成像光谱仪(IRIS)的坐立凝视观测和干涉二维光谱仪(IBIS)的数据为这项工作提供了观测基础。我们比较了观测与合成观测来自彩虹太阳大气模型。我们的分析的\emph{Bifrost}模拟表明,互联网络和增强网络区域表现出显着不同的波传播特性,这是非常重要的准确的波通量估计。根据我们的观测结果推断的波能通量不足以维持太阳色球层。我们指出,在文献中的建模方法的系统性导致的差异,可以确定这种类型的研究的结论,基于相同的观察。

英文摘要:

Acoustic wave heating is believed to contribute significantly to the missing energy input required to maintain the solar chromosphere in its observed state. We studied the propagation of waves above the acoustic cutoff in the upper photosphere into the chromosphere with ultraviolet and optical spectral observations interpreted through comparison with three dimensional radiative magnetohydrodynamic (rMHD) \emph{Bifrost} models to constrain the heating contribution from acoustic waves in the solar atmosphere. Sit-and-stare observations taken with the Interface Region Imaging Spectrograph (IRIS) and data from the Interferometric BIdimensional Spectrograph (IBIS) were used to provide the observational basis of this work. We compared the observations with synthetic observables derived from the Bifrost solar atmospheric model. Our analysis of the \emph{Bifrost} simulations show that internetwork and enhanced network regions exhibit significantly different wave propagation properties, which are important for the accurate wave flux estimates. The inferred wave energy fluxes based on our observations are not sufficient to maintain the solar chromosphere. We point out that the systematics of the modeling approaches in the literature lead to differences which could determine the conclusions of this type of studies, based on the same observations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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