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BOOSTED TIDAL DISRUPTION BY MASSIVE BLACK HOLE BINARIES DURING GALAXY MERGERS FROM THE VIEW OF N-BODY SIMULATION
Li, Shuo1,2,3; Liu, F. K.3,4; Berczik, Peter1,2,5,6; Spurzem, Rainer1,2,4,5
2017-01-10
Source PublicationASTROPHYSICAL JOURNAL
Volume834Issue:2
AbstractSupermassive black hole binaries (SMBHBs) are productions of the hierarchical galaxy formation model. There are many close connections between a central SMBH and its host galaxy because the former plays very important roles on galaxy formation and evolution. For this reason, the evolution of SMBHBs in merging galaxies is a fundamental challenge. Since there are many discussions about SMBHB evolution in a gas-rich environment, we focus on the quiescent galaxy, using tidal disruption (TD) as a diagnostic tool. Our study is based on a series of numerical, large particle number, direct N-body simulations for dry major mergers. According to the simulation results, the evolution can be divided into three phases. In phase I, the TD rate for two well separated SMBHs in a merging system is similar to that for a single SMBH in an isolated galaxy. After two SMBHs approach close enough to form a bound binary in phase II, the disruption rate can be enhanced by similar to 2 orders of magnitude within a short time. This "boosted" disruption stage finishes after the SMBHB evolves to a compact binary system in phase III, corresponding to a reduction in disruption rate back to a level of a few times higher than in phase I. We also discuss how to correctly extrapolate our N-body simulation results to reality, and the implications of our results to observations.
SubtypeArticle
KeywordGalaxies: Evolution Galaxies: Interactions Galaxies: Kinematics And Dynamics Galaxies: Nuclei Methods: Numerical
WOS HeadingsScience & Technology ; Physical Sciences
Funding OrganizationNational Natural Science Foundation of China(NSFC11303039 ; National Natural Science Foundation of China(NSFC11303039 ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences (CAS)(XDB09000000) ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences (CAS)(XDB09000000) ; CAS through the Silk Road Project at National Astronomical Observatories (NAOC) ; CAS through the Silk Road Project at National Astronomical Observatories (NAOC) ; Qianren special foreign experts program of China ; Qianren special foreign experts program of China ; Key Laboratory of Computational Astrophysics ; Key Laboratory of Computational Astrophysics ; German Research Foundation (DFG)(Sonderforschungsbereich SFB 881) ; German Research Foundation (DFG)(Sonderforschungsbereich SFB 881) ; Volkswagen Foundation(90411) ; Volkswagen Foundation(90411) ; CAS President's International Fellowship for Visiting Scientists (PIFI) program ; CAS President's International Fellowship for Visiting Scientists (PIFI) program ; NASU under the Main Astronomical Observatory GRID/GPU "golowood" computing cluster project ; NASU under the Main Astronomical Observatory GRID/GPU "golowood" computing cluster project ; Ministry of Finance of People's Republic of China(ZDYZ2008-2) ; Ministry of Finance of People's Republic of China(ZDYZ2008-2) ; NSFC11473003) ; NSFC11473003) ; National Natural Science Foundation of China(NSFC11303039 ; National Natural Science Foundation of China(NSFC11303039 ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences (CAS)(XDB09000000) ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences (CAS)(XDB09000000) ; CAS through the Silk Road Project at National Astronomical Observatories (NAOC) ; CAS through the Silk Road Project at National Astronomical Observatories (NAOC) ; Qianren special foreign experts program of China ; Qianren special foreign experts program of China ; Key Laboratory of Computational Astrophysics ; Key Laboratory of Computational Astrophysics ; German Research Foundation (DFG)(Sonderforschungsbereich SFB 881) ; German Research Foundation (DFG)(Sonderforschungsbereich SFB 881) ; Volkswagen Foundation(90411) ; Volkswagen Foundation(90411) ; CAS President's International Fellowship for Visiting Scientists (PIFI) program ; CAS President's International Fellowship for Visiting Scientists (PIFI) program ; NASU under the Main Astronomical Observatory GRID/GPU "golowood" computing cluster project ; NASU under the Main Astronomical Observatory GRID/GPU "golowood" computing cluster project ; Ministry of Finance of People's Republic of China(ZDYZ2008-2) ; Ministry of Finance of People's Republic of China(ZDYZ2008-2) ; NSFC11473003) ; NSFC11473003)
DOI10.3847/1538-4357/834/2/195
WOS KeywordFINAL-PARSEC PROBLEM ; SURVEY SPECTROSCOPIC SAMPLE ; ACTIVE GALACTIC NUCLEI ; LONG-TERM EVOLUTION ; RADIO GALAXIES ; COSMOLOGICAL SIMULATIONS ; VELOCITY DISPERSION ; ELLIPTIC GALAXIES ; EFFICIENT MERGER ; MERGING GALAXIES
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(NSFC11303039 ; National Natural Science Foundation of China(NSFC11303039 ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences (CAS)(XDB09000000) ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences (CAS)(XDB09000000) ; CAS through the Silk Road Project at National Astronomical Observatories (NAOC) ; CAS through the Silk Road Project at National Astronomical Observatories (NAOC) ; Qianren special foreign experts program of China ; Qianren special foreign experts program of China ; Key Laboratory of Computational Astrophysics ; Key Laboratory of Computational Astrophysics ; German Research Foundation (DFG)(Sonderforschungsbereich SFB 881) ; German Research Foundation (DFG)(Sonderforschungsbereich SFB 881) ; Volkswagen Foundation(90411) ; Volkswagen Foundation(90411) ; CAS President's International Fellowship for Visiting Scientists (PIFI) program ; CAS President's International Fellowship for Visiting Scientists (PIFI) program ; NASU under the Main Astronomical Observatory GRID/GPU "golowood" computing cluster project ; NASU under the Main Astronomical Observatory GRID/GPU "golowood" computing cluster project ; Ministry of Finance of People's Republic of China(ZDYZ2008-2) ; Ministry of Finance of People's Republic of China(ZDYZ2008-2) ; NSFC11473003) ; NSFC11473003) ; National Natural Science Foundation of China(NSFC11303039 ; National Natural Science Foundation of China(NSFC11303039 ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences (CAS)(XDB09000000) ; Strategic Priority Research Program "The Emergence of Cosmological Structures" of the Chinese Academy of Sciences (CAS)(XDB09000000) ; CAS through the Silk Road Project at National Astronomical Observatories (NAOC) ; CAS through the Silk Road Project at National Astronomical Observatories (NAOC) ; Qianren special foreign experts program of China ; Qianren special foreign experts program of China ; Key Laboratory of Computational Astrophysics ; Key Laboratory of Computational Astrophysics ; German Research Foundation (DFG)(Sonderforschungsbereich SFB 881) ; German Research Foundation (DFG)(Sonderforschungsbereich SFB 881) ; Volkswagen Foundation(90411) ; Volkswagen Foundation(90411) ; CAS President's International Fellowship for Visiting Scientists (PIFI) program ; CAS President's International Fellowship for Visiting Scientists (PIFI) program ; NASU under the Main Astronomical Observatory GRID/GPU "golowood" computing cluster project ; NASU under the Main Astronomical Observatory GRID/GPU "golowood" computing cluster project ; Ministry of Finance of People's Republic of China(ZDYZ2008-2) ; Ministry of Finance of People's Republic of China(ZDYZ2008-2) ; NSFC11473003) ; NSFC11473003)
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000400148300008
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8846
Collection星系宇宙学研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Key Lab Computat Astrophys, 20A Datun Rd, Beijing 100012, Peoples R China
3.Peking Univ, Dept Astron, Sch Phys, Yiheyuan Lu 5, Beijing 100871, Peoples R China
4.Peking Univ, Kavli Inst Astron & Astrophys, Yiheyuan Lu 5, Beijing 100871, Peoples R China
5.Heidelberg Univ, Zentrum Astron, Astron Rechen Inst, Mochhofstr 12-14, D-69120 Heidelberg, Germany
6.Natl Acad Sci Ukraine, Main Astron Observ, 27 Akad Zabolotnoho St, UA-03680 Kiev, Ukraine
Recommended Citation
GB/T 7714
Li, Shuo,Liu, F. K.,Berczik, Peter,et al. BOOSTED TIDAL DISRUPTION BY MASSIVE BLACK HOLE BINARIES DURING GALAXY MERGERS FROM THE VIEW OF N-BODY SIMULATION[J]. ASTROPHYSICAL JOURNAL,2017,834(2).
APA Li, Shuo,Liu, F. K.,Berczik, Peter,&Spurzem, Rainer.(2017).BOOSTED TIDAL DISRUPTION BY MASSIVE BLACK HOLE BINARIES DURING GALAXY MERGERS FROM THE VIEW OF N-BODY SIMULATION.ASTROPHYSICAL JOURNAL,834(2).
MLA Li, Shuo,et al."BOOSTED TIDAL DISRUPTION BY MASSIVE BLACK HOLE BINARIES DURING GALAXY MERGERS FROM THE VIEW OF N-BODY SIMULATION".ASTROPHYSICAL JOURNAL 834.2(2017).
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