中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Resolving the Interstellar Medium in Ultraluminous Infrared QSO Hosts with ALMA

文献类型:期刊论文

作者Tan, Qing-Hua15,16; Gao, Yu15,16; Kohno, Kotaro13,14; Xia, Xiao-Yang12; Omont, Alain10,11; Hao, Cai-Na12; Mao, Shu-De7,8,9; Daddi, Emanuele6; Shi, Yong4,5; Zhao, Ying-He3
刊名ASTROPHYSICAL JOURNAL
出版日期2019-12-10
卷号887期号:1页码:20
ISSN号0004-637X
DOI10.3847/1538-4357/ab50be
通讯作者Tan, Qing-Hua(qhtan@pmo.ac.cn)
英文摘要We present ALMA observations of the CO(1-0) line and 3 mm continuum emission in eight ultraluminous infrared (IR) quasi-stellar objects (QSOs) at z = 0.06-0.19. All eight IR QSO hosts are clearly resolved in their CO molecular gas emission with a median source size of 3.2 kpc, and seven out of eight sources are detected in 3 mm continuum, which is found to be more centrally concentrated with respect to molecular gas with sizes of 0.4-1.0 kpc. Our observations reveal a diversity of CO morphology and kinematics for the IR QSO systems, which can be roughly classified into three categories: rotating gas disk with ordered velocity gradient, compact CO peak with disturbed velocity, and multiple CO distinct sources undergoing a merger between a luminous QSO and a companion galaxy separated by a few kpc. The molecular gas in three of the IR QSO hosts is found to be rotation-dominated with a ratio of the maximum rotation velocity to the local velocity dispersion of V-rot/sigma = 4-6. Basic estimates of the dynamical masses within the CO-emitting regions give masses between 7.4 x 10(9) and 6.9 x 10(10) M-circle dot. We find an increasing trend between black hole mass accretion rate and star formation rate (SFR) over 3 orders of magnitude in far-IR luminosity/SFR, in line with the correlation between QSO bolometric luminosity and star formation activity, indicative of a likely direct connection between active galactic nuclei and star formation activity over galaxy evolution timescales.
WOS关键词SUPERMASSIVE BLACK-HOLES ; ACTIVE GALACTIC NUCLEI ; QUASI-STELLAR OBJECTS ; DENSE MOLECULAR GAS ; STAR-FORMATION ; HIGH-REDSHIFT ; ROTATION CURVES ; SPECTROSCOPIC PROPERTIES ; GALAXIES ; EMISSION
WOS研究方向Astronomy & Astrophysics
语种英语
出版者IOP PUBLISHING LTD
WOS记录号WOS:000506001500024
源URL[http://libir.pmo.ac.cn/handle/332002/35382]  
专题中国科学院紫金山天文台
通讯作者Tan, Qing-Hua
作者单位1.Univ Paris 06, 98Bis Blvd Arago, F-75014 Paris, France
2.CNRS, Inst Astrophys Paris, 98Bis Blvd Arago, F-75014 Paris, France
3.Chinese Acad Sci, Yunnan Observ, Kunming 650011, Yunnan, Peoples R China
4.Nanjing Univ, Minist Educ, Key Lab Modern Astron & Astrophys, Nanjing 210093, Peoples R China
5.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210093, Peoples R China
6.Univ Paris Diderot, Univ Paris Saclay, Sorbonne Paris Cite, CNRS,CEA,IRFU,DAp,AIM, F-91191 Gif Sur Yvette, France
7.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
8.Tsinghua Univ, Tsinghua Ctr Astrophys, Beijing 100084, Peoples R China
9.Tsinghua Univ, Phys Dept, Beijing 100084, Peoples R China
10.Inst Astrophys Paris, UMR 7095, CNRS, 98Bis Blvd Arago, F-75014 Paris, France
推荐引用方式
GB/T 7714
Tan, Qing-Hua,Gao, Yu,Kohno, Kotaro,et al. Resolving the Interstellar Medium in Ultraluminous Infrared QSO Hosts with ALMA[J]. ASTROPHYSICAL JOURNAL,2019,887(1):20.
APA Tan, Qing-Hua.,Gao, Yu.,Kohno, Kotaro.,Xia, Xiao-Yang.,Omont, Alain.,...&Cox, Pierre.(2019).Resolving the Interstellar Medium in Ultraluminous Infrared QSO Hosts with ALMA.ASTROPHYSICAL JOURNAL,887(1),20.
MLA Tan, Qing-Hua,et al."Resolving the Interstellar Medium in Ultraluminous Infrared QSO Hosts with ALMA".ASTROPHYSICAL JOURNAL 887.1(2019):20.

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来源:紫金山天文台

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