Low-mass and high-mass supermassive black holes in radio-loud AGNs are spun-up in different evolution paths

作     者：Jing Wang Min-Zhi Kong Shun-Fang Liu Da-Wei Xu Qiang Zhang Jian-Yan Wei 

作者机构：Guangxi Key Laboratory for Relativistic Astrophysics School of Physical Science and Technology Guangxi University Nanning 530004 China Key Laboratory of Space Astronomy and Technology National Astronomical Observatories Chinese Academy of Sciences Beijing 100101 China School of Astronomy and Space Science University of Chinese Academy of Sciences Beijing 100049 China Department of Physics Hebei Normal University Shijiazhuang 050024 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：2019年第19卷第10期

页      面：59-64页

核心收录：

学科分类：0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 0704[理学-天文学] 0825[工学-航空宇航科学与技术] 

基　　金：supported by the National Natural Science Foundation of China (NSFC Grant Nos. 11773036 and 11473036) supported by the NSFC Youth Foundation (11303008) and by the Astronomical Union Foundation (U1831126) supported by the National Basic Research Program of China (2014CB845800), the NSFC (11533003) the Strategic Pioneer Program on Space Science, Chinese Academy of Sciences (XDA 15052600 and XDA 15016500) paritally supported by the Bagui Young Scholars Program the Natural Science Foundation of Guangxi (2018GXNSF GA281007) 

主　　题：galaxies bulges-galaxies nuclei-galaxies Seyfert 

摘      要：How supermassive black holes(SMBHs) are spun-up is a key issue in modern astrophysics. As an extension to the study in Wang et al., here we address the issue by comparing the host galaxy properties of nearby(z 10^7.9 M⊙)have a preference for being spun-up in classical bulges, and low-mass SMBHs(i.e., MBH = 10^6-10^7 M⊙)in pseudo-bulges. This dichotomy suggests and confirms that high-mass and low-mass SMBHs are spun-up in different ways, i.e., a major dry merger and a secular evolution respectively.