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On the survival of resonant and non-resonant planetary systems in star clusters
Stock, Katja1,7; Cai, Maxwell X.2; Spurzem, Rainer1,3,4,5,8; Kouwenhoven, M. B. N.6; Zwart, Simon Portegies2
2020-09-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume497Issue:2Pages:1807-1825
AbstractDespite the discovery of thousands of exoplanets in recent years, the number of known exoplanets in star clusters remains tiny. This may be a consequence of close stellar encounters perturbing the dynamical evolution of planetary systems in these clusters. Here, we present the results from direct N-body simulations of multiplanetary systems embedded in star clusters containing N = 8k, 16k, 32k, and 64k stars. The planetary systems, which consist of the four Solar system giant planets Jupiter, Saturn, Uranus, and Neptune, are initialized in different orbital configurations, to study the effect of the system architecture on the dynamical evolution of the entire planetary system, and on the escape rate of the individual planets. We find that the current orbital parameters of the Solar system giants (with initially circular orbits, as well as with present-day eccentricities) and a slightly more compact configuration, have a high resilience against stellar perturbations. A configuration with initial mean-motion resonances of 3:2, 3:2, and 5:4 between the planets, which is inspired by the Nice model, and for which the two outermost planets are usually ejected within the first 10(5) yr, is in many cases stabilized due to the removal of the resonances by external stellar perturbation and by the rapid ejection of at least one planet. Assigning all planets the same mass of 1 M-Jup almost equalizes the survival fractions. Our simulations reproduce the broad diversity amongst observed exoplanet systems. We find not only many very wide and/or eccentric orbits, but also a significant number of (stable) retrograde orbits.
Keywordmethods: numerical planets and satellites: dynamical evolution and stability galaxies: clusters: general
Funding OrganizationDeutsche Forschungsgemeinschaft (DFG) ; Deutsche Forschungsgemeinschaft (DFG) ; National Astronomical Observatories of Chinese Academy of Sciences, Silk Road Project ; National Astronomical Observatories of Chinese Academy of Sciences, Silk Road Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Volkswagen Foundation ; Volkswagen Foundation ; Research Development Fund of Xi'an Jiaotong-Liverpool University (XJTLU) ; Research Development Fund of Xi'an Jiaotong-Liverpool University (XJTLU) ; Deutsche Forschungsgemeinschaft (DFG) ; Deutsche Forschungsgemeinschaft (DFG) ; National Astronomical Observatories of Chinese Academy of Sciences, Silk Road Project ; National Astronomical Observatories of Chinese Academy of Sciences, Silk Road Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Volkswagen Foundation ; Volkswagen Foundation ; Research Development Fund of Xi'an Jiaotong-Liverpool University (XJTLU) ; Research Development Fund of Xi'an Jiaotong-Liverpool University (XJTLU) ; Deutsche Forschungsgemeinschaft (DFG) ; Deutsche Forschungsgemeinschaft (DFG) ; National Astronomical Observatories of Chinese Academy of Sciences, Silk Road Project ; National Astronomical Observatories of Chinese Academy of Sciences, Silk Road Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Volkswagen Foundation ; Volkswagen Foundation ; Research Development Fund of Xi'an Jiaotong-Liverpool University (XJTLU) ; Research Development Fund of Xi'an Jiaotong-Liverpool University (XJTLU) ; Deutsche Forschungsgemeinschaft (DFG) ; Deutsche Forschungsgemeinschaft (DFG) ; National Astronomical Observatories of Chinese Academy of Sciences, Silk Road Project ; National Astronomical Observatories of Chinese Academy of Sciences, Silk Road Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Volkswagen Foundation ; Volkswagen Foundation ; Research Development Fund of Xi'an Jiaotong-Liverpool University (XJTLU) ; Research Development Fund of Xi'an Jiaotong-Liverpool University (XJTLU)
DOI10.1093/mnras/staa2047
WOS KeywordDYNAMICAL INTERACTIONS ; CLOSE ENCOUNTERS ; EVOLUTION ; DISCS ; IRREVERSIBILITY ; RETROGRADE ; ORIGIN
Language英语
Funding ProjectDeutsche Forschungsgemeinschaft (DFG)[SPP 1992] ; Deutsche Forschungsgemeinschaft (DFG)[SP 345/20-1] ; National Astronomical Observatories of Chinese Academy of Sciences, Silk Road Project ; National Natural Science Foundation of China[11673032] ; National Natural Science Foundation of China[11573004] ; Volkswagen Foundation[84678/84680] ; Research Development Fund of Xi'an Jiaotong-Liverpool University (XJTLU)[RDF-16-01-16]
Funding OrganizationDeutsche Forschungsgemeinschaft (DFG) ; Deutsche Forschungsgemeinschaft (DFG) ; National Astronomical Observatories of Chinese Academy of Sciences, Silk Road Project ; National Astronomical Observatories of Chinese Academy of Sciences, Silk Road Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Volkswagen Foundation ; Volkswagen Foundation ; Research Development Fund of Xi'an Jiaotong-Liverpool University (XJTLU) ; Research Development Fund of Xi'an Jiaotong-Liverpool University (XJTLU) ; Deutsche Forschungsgemeinschaft (DFG) ; Deutsche Forschungsgemeinschaft (DFG) ; National Astronomical Observatories of Chinese Academy of Sciences, Silk Road Project ; National Astronomical Observatories of Chinese Academy of Sciences, Silk Road Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Volkswagen Foundation ; Volkswagen Foundation ; Research Development Fund of Xi'an Jiaotong-Liverpool University (XJTLU) ; Research Development Fund of Xi'an Jiaotong-Liverpool University (XJTLU) ; Deutsche Forschungsgemeinschaft (DFG) ; Deutsche Forschungsgemeinschaft (DFG) ; National Astronomical Observatories of Chinese Academy of Sciences, Silk Road Project ; National Astronomical Observatories of Chinese Academy of Sciences, Silk Road Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Volkswagen Foundation ; Volkswagen Foundation ; Research Development Fund of Xi'an Jiaotong-Liverpool University (XJTLU) ; Research Development Fund of Xi'an Jiaotong-Liverpool University (XJTLU) ; Deutsche Forschungsgemeinschaft (DFG) ; Deutsche Forschungsgemeinschaft (DFG) ; National Astronomical Observatories of Chinese Academy of Sciences, Silk Road Project ; National Astronomical Observatories of Chinese Academy of Sciences, Silk Road Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Volkswagen Foundation ; Volkswagen Foundation ; Research Development Fund of Xi'an Jiaotong-Liverpool University (XJTLU) ; Research Development Fund of Xi'an Jiaotong-Liverpool University (XJTLU)
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000574924500038
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/81711
Collection中国科学院国家天文台
Corresponding AuthorStock, Katja; Spurzem, Rainer
Affiliation1.Heidelberg Univ, Zentrum Astron, Astron Rechen Inst, Monchhofstr 12-14, D-69120 Heidelberg, Germany
2.Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands
3.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100101, Peoples R China
4.Chinese Acad Sci, Key Lab Computat Astrophys, 20A Datun Rd, Beijing 100101, Peoples R China
5.Peking Univ, Kavli Inst Astron & Astrophys, 5 Yi He Yuan Rd, Beijing 100871, Peoples R China
6.Xian Jiaotong Liverpool Univ, Sch Sci, Dept Phys, 111 Renai Rd, Suzhou 215123, Peoples R China
7.Univ Heidelberg IMPRS HD, Int Max Planck Res Sch Astron & Cosm Phys, Heidelberg, Germany
8.Frankfurt Inst Adv Studies, Frankfurt, Germany
Recommended Citation
GB/T 7714
Stock, Katja,Cai, Maxwell X.,Spurzem, Rainer,et al. On the survival of resonant and non-resonant planetary systems in star clusters[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2020,497(2):1807-1825.
APA Stock, Katja,Cai, Maxwell X.,Spurzem, Rainer,Kouwenhoven, M. B. N.,&Zwart, Simon Portegies.(2020).On the survival of resonant and non-resonant planetary systems in star clusters.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,497(2),1807-1825.
MLA Stock, Katja,et al."On the survival of resonant and non-resonant planetary systems in star clusters".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 497.2(2020):1807-1825.
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