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Investigating the co-evolution of massive black holes in dual active galactic nuclei and their host galaxies via galaxy merger simulations
Yang, Chao1,2,3; Ge, JunQiang1,3; Lu, YouJun1,2,3
2019-12-01
Source PublicationSCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
ISSN1674-7348
Volume62Issue:12Pages:14
AbstractMajor galaxy mergers can trigger nuclear activities and are responsible for high-luminosity quasi-stellar objects/active galactic nuclei (QSOs/AGNs). In certain circumstances, such mergers may cause dual active galactic nuclei (dAGN) phenomenon. This study investigates dAGN triggering and evolution of massive black holes (MBHs) during the merging processes using hydrodynamic code GADGET-2 to simulate several gas-rich major mergers at redshift z = 2 and 3, respectively. Results reveal that gas-rich major mergers can trigger significant nuclear activities after the second and third pericentric passages and the formation of dAGN with significant time duration (similar to 10-390 Myr). During the merging processes, galactic bulge evolves with time because of the rapid star formation in each (or both) galactic centers and initial mixing of stars in galactic disks due to violent relaxation. MBHs grow substantially due to accretion and finally merge into a bigger black hole. The growth of galactic bulges and corresponding increases of its velocity dispersions predate the growth of MBHs in the dAGN stages. The MBHs in these stages deviate below the relation between MBH mass and bulge mass (or velocity dispersion), and they revert to the relation after the final mergers due to the significant accretion that occurs mostly at a separation less than a few kpc. Then, the two MBHs merge with each other.
Keywordgalaxies quasars black hole numerical simulations
Funding OrganizationNational Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Program of the Chinese Academy of Sciences ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Program of the Chinese Academy of Sciences ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Program of the Chinese Academy of Sciences ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Program of the Chinese Academy of Sciences
DOI10.1007/s11433-019-9442-9
WOS KeywordDIGITAL SKY SURVEY ; STAR-FORMATION ; EVOLUTION ; FEEDBACK ; QUASARS ; GROWTH ; MODEL ; KINEMATICS ; PAIRS ; AGNS
Language英语
Funding ProjectNational Key Program for Science and Technology Research and Development[2016YFA0400704] ; National Natural Science Foundation of China[11690024] ; National Natural Science Foundation of China[11873056] ; Strategic Priority Program of the Chinese Academy of Sciences[XDB 23040100]
Funding OrganizationNational Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Program of the Chinese Academy of Sciences ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Program of the Chinese Academy of Sciences ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Program of the Chinese Academy of Sciences ; National Key Program for Science and Technology Research and Development ; National Key Program for Science and Technology Research and Development ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Program of the Chinese Academy of Sciences ; Strategic Priority Program of the Chinese Academy of Sciences
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000483254600001
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/27753
Collection中国科学院国家天文台
Corresponding AuthorYang, Chao; Lu, YouJun
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab Computat Astrophys, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Yang, Chao,Ge, JunQiang,Lu, YouJun. Investigating the co-evolution of massive black holes in dual active galactic nuclei and their host galaxies via galaxy merger simulations[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2019,62(12):14.
APA Yang, Chao,Ge, JunQiang,&Lu, YouJun.(2019).Investigating the co-evolution of massive black holes in dual active galactic nuclei and their host galaxies via galaxy merger simulations.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,62(12),14.
MLA Yang, Chao,et al."Investigating the co-evolution of massive black holes in dual active galactic nuclei and their host galaxies via galaxy merger simulations".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 62.12(2019):14.
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