论文标题
使用IRIS和AIA的太阳活性区域中喷射样现象的多波长度成像和光谱分析
Multiwavelength Imaging and Spectral Analysis of Jet-like Phenomena in a Solar Active Region Using IRIS and AIA
论文作者
论文摘要
动态现象的高分辨率观察可以洞悉控制低太阳大气的特性和过程。我们使用来自界面区域成像光谱仪（IRIS）和大气成像组件（AIA）在板上太阳能动力学观测值的界面区域成像谱仪（IRIS）中的成像和光谱观测来介绍了从活性区域（AR）12192中产生的类似喷气样现象的分析。这些喷气机与$ \ pm $ \ $ 10-22 km s $^{ - 1} $的视线（LOS）多普勒速度和明亮的前沿相关联，似乎以23-130 km s $^{ - 1} $的速度跨过天际飞机（POS）。此类速度大大高于染色体中预期的声速。喷气机具有在虹膜和AIA的凉爽和热通道中可见的签名。每个喷气机平均持续15分钟，在2小时的时间内发生5-7次。提出了解释这种现象的可能机制，其中最有可能涉及P模式或Alfv \'en波冲击列车，撞击了过渡区域（TR）和Corona，这是由于光平面或重力波的陡峭而导致的。
High-resolution observations of dynamic phenomena give insight into properties and processes that govern the low solar atmosphere. We present the analysis of jet-like phenomena emanating from a penumbral foot-point in active region (AR) 12192 using imaging and spectral observations from the Interface Region Imaging Spectrograph (IRIS) and the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory. These jets are associated with line-of-sight (LoS) Doppler speeds of $\pm$ 10-22 km s$^{-1}$ and bright fronts which seem to move across the Plane-of-Sky (PoS) at speeds of 23-130 km s$^{-1}$. Such speeds are considerably higher than the expected sound speed in the chromosphere. The jets have signatures which are visible both in the cool and hot channels of IRIS and AIA. Each jet lasts on average 15 minutes and occur 5-7 times over a period of 2 hours. Possible mechanisms to explain this phenomenon are suggested, the most likely of which involve p-mode or Alfv\' en wave shock trains impinging on the transition region (TR) and corona as a result of steepening photospheric wavefronts or gravity waves.
