论文标题
阿尔玛（Alma）观察太阳活性区域中的瞬时加热
ALMA observations of transient heating in a solar active region
论文作者
论文摘要
我们的目的是研究太阳能活跃区域中冲动加热现象的温度升高和形成高度，例如Ellerman炸弹（EBS）（EBS），紫外线爆发（UVBS）和使用毫米级的conterumeter conterum conterum allim Millim Millim Millim Millim nimerter（mm）conterum nimeter（MM）conterum nimeter（ulim conterma）contere nimeter（MM）。我们检查了在太阳能动力学观测区（SDO）观察结果中鉴定出的3 mM标志，并将结果与3D辐射磁性水力动力学模拟的合成光谱进行了比较。我们使用差分排放度量分析估算了电晕对MM亮度的贡献。我们报告了3毫米连续体中EBS的无效检测，以$ \ sim1.2 $“空间分辨率，这证明它们是子手册事件，这些事件并不能显着促进加热彩色上的彩色球体。相反，我们发现要有多个紧凑的，明亮的，光明的，闪烁的mm sim sim 7 sim sim for-primpts of prights $ $ $ $ $ $ $ $ $ $ $ $ $ $。在某些事件中，Corona有很大的贡献（最高$ \ sim $ 7％）。连接相反极性的磁性区域的一类热冠层。
We aim to investigate the temperature enhancements and formation heights of impulsive heating phenomena in solar active-regions such as Ellerman bombs (EBs), ultraviolet bursts (UVBs), and flaring active-region fibrils (FAFs) using interferometric observations in the millimeter (mm) continuum provided by the Atacama Large Millimeter/submillimeter Array (ALMA). We examined 3 mm signatures of heating events identified in Solar Dynamics Observatory (SDO) observations of an active region and compared the results with synthetic spectra from a 3D radiative magnetohydrodynamic simulation. We estimated the contribution from the corona to the mm brightness using differential emission measure analysis. We report the null detection of EBs in the 3 mm continuum at $\sim1.2$" spatial resolution, which is evidence that they are sub-canopy events that do not significantly contribute to heating the upper chromosphere. In contrast, we find the active region to be populated with multiple compact, bright, flickering mm bursts -- reminiscent of UVBs. The high brightness temperatures of up to $\sim14200$ K in some events have a significant contribution (up to $\sim$7%) from the corona. We also detect FAF-like events in the 3 mm continuum that show rapid motions of $>10000\,$K plasma launched with high plane-of-sky velocities ($37-340\rm\,km\,s^{-1}$) from bright kernels. The mm FAFs are the brightest class of warm canopy fibrils that connect magnetic regions of opposite polarities. The simulation confirms that ALMA should be able to detect the mm counterparts of UVBs and small flares and thus provide a complementary diagnostic for localized heating in the solar chromosphere.
