Growth of Black Holes and Their Host Spheroids in (Sub)mm-loud High-Redshift QSOs

作     者：Cai-Na Hao Xiao-Yang Xia Shu-De Mao Zu-Gan Deng Hong Wu 

作者机构：Tianjin Astrophysics Center Tianjin Normal University Tianjin 300384 National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 Institute of Astronomy University of Cambridge Madingley Road Cambridge CB3 0HA UK Jodrell Bank Observatory University of Manchester Macclesfield Cheshire SK11 9DL UK Graduate School of Chinese Academy of Sciences Beijing 100049 

出 版 物：《Chinese Journal of Astronomy and Astrophysics》 (中国天文和天体物理学报（英文版）)

年 卷 期：2008年第8卷第1期

页      面：12-24页

核心收录：

学科分类：07[理学] 0704[理学-天文学] 

基　　金：Supported by the National Natural Science Foundation of China 

主　　题：galaxies active - galaxies evolution - galaxies high-redshift - galaxies interactions - quasars general - galaxies starburst 

摘      要：We study the growth of black holes and stellar population in spheroids at high redshift using several （sub）mm-loud QSO samples. Applying the same criteria established in an earlier work, we find that, similar to IR QSOs at low redshift, the far-infrared emission of these （sub）mm-loud QSOs mainly originates from dust heated by starbursts. By combining low-z IR QSOs and high-z （sub）mm-loud QSOs, we find a trend that the star formation rate （M＊） increases with the accretion rate （Mace）. We compare the values of M＊/Macc for submm emitting galaxies （SMGs）, far-infrared ultraluminous/hypeduminous QSOs and typical QSOs, and construct a likely evolution scenario for these objects. The （sub）mm-loud QSO transition phase has both high Macc and M＊ and hence is important for establishing the correlation between the masses of black holes and spheroids.