Sunspot rotation and magnetic transients associated with flares in NOAAAR 11429

作     者：Jian-Chuan Zheng Zhi-Liang Yang Jian-Peng Guo Kai-Ming Guo Hui Huang Xuan Song Wei-Xing Wan 

作者机构：Department of Astronomy Beijing Normal University Beijing 100875 China Key Laboratory of Earth and Planetary Physics Institute of Geology and Geophysics Chinese Academy ofSciences Beijing 100029 China College of Earth Sciences University of Chinese Academy of Sciences Beijing 100049 China 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2017年第17卷第8期

页      面：47-56页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：supported by the National Natural Science Foundation of China (41231068  41374187  41531073 and 41674147) 

主　　题：sunspots—Sun rotation—Sun magnetic fields 

摘      要：We analyze sunspot rotation and magnetic transients in NOAA AR 11429 during two X-class(X5.4 and X1.3)flares using data from the Helioseismic and Magnetic Imager on board the Solar Dynamics Observatory.A large leading sunspot with positive magnetic polarity rotated *** expected,the rotation was significantly affected by the two *** transients induced by the flares were clearly evident in the sunspots with negative *** were moving across the sunspots with speed of order 3-7 km ***,the trend of magnetic flux evolution in these sunspots exhibited changes associated with the *** results may shed light on understanding the evolution of sunspots.