论文标题
关于与洛伦兹力变化相关的黑子的地震发射，伴随着主要的太阳耀斑
On the seismic emission in sunspots associated with Lorentz force changes accompanying major solar flares
论文作者
论文摘要
已知太阳耀斑会在太阳下产生地震波。我们对伴随M-和X级太阳耀斑的黑子中的地震发射进行了详细的分析。为此，我们使用了45 s的节奏的高分辨率多普勒格（Cadence）和视线磁力图，以及从Helioseissic and Maginate Imager（HMI）仪器（HMI）仪器获得的135 s的矢量磁图，上下了太阳能动态（SDO）太空任务。为了确定耀斑丝带和硬X射线脚点的位置，我们还使用了从全球振荡网络组（GONG）仪器（GONG）仪器（GONG）仪器和硬X射线图像中获得的H-Alpha色素强度观测值，并在Reuvan Ramaty Ramaty高能光谱图（Rhessi）的12-25 KEV频段中获得了SpaceR（Rhessi）SpaceCrapt。快速傅立叶变换（FFT）技术用于在2.5-4 MHz带中构建声速功率图，以用于前射击，跨越耀斑和后耀斑时期，以识别日光浴中的地震发射位置。在电源图中，我们仅选择了那些远离耀斑丝带和硬X射线脚踏点的位置。人们认为这些区域没有观察数据中的任何相关伪像。我们已经确定了伴随着主要耀斑的黑子中声音增强的集中位置。我们的调查提供了证据，表明磁场的突然变化以及洛伦兹力的相关冲动变化可能是太阳耀斑期间黑子中这些地震排放的驱动源。
Solar flares are known to generate seismic waves in the Sun. We present a detailed analysis of seismic emission in sunspots accompanying M- and X-class solar flares. For this purpose, we have used high-resolution Dopplergrams and line-of-sight magnetograms at a cadence of 45 s, along with vector magnetograms at a cadence of 135 s obtained from Helioseismic and Magnetic Imager (HMI) instrument aboard the Solar Dynamic Observatory (SDO) space mission. In order to identify the location of flare ribbons and hard X-ray foot-points, we have also used H-alpha chromospheric intensity observations obtained from Global Oscillation Network Group (GONG) instruments and hard X-ray images in 12-25 KeV band from the Reuvan Ramaty High Energy Solar Spectroscopic Imager (RHESSI) spacecraft. The Fast Fourier Transform (FFT) technique is applied to construct the acoustic velocity power map in 2.5-4 mHz band for pre-flare, spanning flare, and post flare epochs for the identification of seismic emission locations in the sunspots. In the power maps, we have selected only those locations which are away from the flare ribbons and hard X-rays foot-points. These regions are believed to be free from any flare related artefacts in the observational data. We have identified concentrated locations of acoustic power enhancements in sunspots accompanying major flares. Our investigation provides evidence that abrupt changes in the magnetic fields and associated impulsive changes in the Lorentz force could be the driving source for these seismic emissions in the sunspots during solar flares.
