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On the survivability of planets in young massive clusters and its implication of planet orbital architectures in globular clusters
Cai, Maxwell X.1; Zwart, S. Portegies1; Kouwenhoven, M. B. N.2; Spurzem, Rainer3,4,5,6
2019-11-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume489Issue:3Pages:4311-4321
AbstractAs of 2019 August, among the more than 4000 confirmed exoplanets, only one has been detected in a globular cluster (GC) M4. The scarce of exoplanet detections motivates us to employ direct N-body simulations to investigate the dynamical stability of planets in young massive clusters (YMC), which are potentially the progenitors of GCs. In an N = 128 k cluster of virial radius 1.7 pc (comparable to Westerlund-1), our simulations show that most wide-orbit planets (a >= 20 au) will be ejected within a time-scale of 10 Myr. Interestingly, more than 70 per cent of planets with a < 5 au survive in the 100 Myr simulations. Ignoring planet-planet scattering and tidal damping, the survivability at t Myr as a function of initial semimajor axis a(0) in au in such a YMC can be described as f(surv)(a(0, t))= -0.33log(10)(a(0))(1 - e(-0.0482t)) + 1. Upon ejection, about 28.8 per cent of free-floating planets (FFPs) have sufficient speeds to escape from the host cluster at a crossing time-scale. The other FFPs will remain bound to the cluster potential, but the subsequent dynamical evolution of the stellar system can result in the delayed ejection of FFPs from the host cluster. Although a full investigation of planet population in GCs requires extending the simulations to multiGyr, our results suggest that wide-orbit planets and free-floating planets are unlikely to be found in GCs.
Keywordmethods: numerical planets and satellites: dynamical evolution and stability planets and satellites: formation globular clusters: general galaxies: star clusters: general
Funding OrganizationSURFsara (Dutch national supercomputing centre) through the SOIL (SURFsara Open Innovation Lab) initiative ; SURFsara (Dutch national supercomputing centre) through the SOIL (SURFsara Open Innovation Lab) initiative ; EU Horizon 2020 project COMPAT ; EU Horizon 2020 project COMPAT ; NWO ; NWO ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Xi'an Jiaotong-Liverpool University (XJTLU) ; Xi'an Jiaotong-Liverpool University (XJTLU) ; DFG (German Research Foundation) ; DFG (German Research Foundation) ; SURFsara (Dutch national supercomputing centre) through the SOIL (SURFsara Open Innovation Lab) initiative ; SURFsara (Dutch national supercomputing centre) through the SOIL (SURFsara Open Innovation Lab) initiative ; EU Horizon 2020 project COMPAT ; EU Horizon 2020 project COMPAT ; NWO ; NWO ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Xi'an Jiaotong-Liverpool University (XJTLU) ; Xi'an Jiaotong-Liverpool University (XJTLU) ; DFG (German Research Foundation) ; DFG (German Research Foundation) ; SURFsara (Dutch national supercomputing centre) through the SOIL (SURFsara Open Innovation Lab) initiative ; SURFsara (Dutch national supercomputing centre) through the SOIL (SURFsara Open Innovation Lab) initiative ; EU Horizon 2020 project COMPAT ; EU Horizon 2020 project COMPAT ; NWO ; NWO ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Xi'an Jiaotong-Liverpool University (XJTLU) ; Xi'an Jiaotong-Liverpool University (XJTLU) ; DFG (German Research Foundation) ; DFG (German Research Foundation) ; SURFsara (Dutch national supercomputing centre) through the SOIL (SURFsara Open Innovation Lab) initiative ; SURFsara (Dutch national supercomputing centre) through the SOIL (SURFsara Open Innovation Lab) initiative ; EU Horizon 2020 project COMPAT ; EU Horizon 2020 project COMPAT ; NWO ; NWO ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Xi'an Jiaotong-Liverpool University (XJTLU) ; Xi'an Jiaotong-Liverpool University (XJTLU) ; DFG (German Research Foundation) ; DFG (German Research Foundation)
DOI10.1093/mnras/stz2467
WOS KeywordFREE-FLOATING PLANETS ; STELLAR CLUSTERS ; EXTERNAL PHOTOEVAPORATION ; DYNAMICAL INTERACTIONS ; EMBEDDED CLUSTERS ; CLOSE ENCOUNTERS ; GAS EXPULSION ; SYSTEMS ; EVOLUTION ; ENGULFMENT
Language英语
Funding ProjectSURFsara (Dutch national supercomputing centre) through the SOIL (SURFsara Open Innovation Lab) initiative ; EU Horizon 2020 project COMPAT[671564] ; NWO[621.016.701] ; National Natural Science Foundation of China[11573004] ; Xi'an Jiaotong-Liverpool University (XJTLU)[RDF-16-01-16] ; DFG (German Research Foundation)[SPP 1992] ; DFG (German Research Foundation)[Sp 345/20-1]
Funding OrganizationSURFsara (Dutch national supercomputing centre) through the SOIL (SURFsara Open Innovation Lab) initiative ; SURFsara (Dutch national supercomputing centre) through the SOIL (SURFsara Open Innovation Lab) initiative ; EU Horizon 2020 project COMPAT ; EU Horizon 2020 project COMPAT ; NWO ; NWO ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Xi'an Jiaotong-Liverpool University (XJTLU) ; Xi'an Jiaotong-Liverpool University (XJTLU) ; DFG (German Research Foundation) ; DFG (German Research Foundation) ; SURFsara (Dutch national supercomputing centre) through the SOIL (SURFsara Open Innovation Lab) initiative ; SURFsara (Dutch national supercomputing centre) through the SOIL (SURFsara Open Innovation Lab) initiative ; EU Horizon 2020 project COMPAT ; EU Horizon 2020 project COMPAT ; NWO ; NWO ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Xi'an Jiaotong-Liverpool University (XJTLU) ; Xi'an Jiaotong-Liverpool University (XJTLU) ; DFG (German Research Foundation) ; DFG (German Research Foundation) ; SURFsara (Dutch national supercomputing centre) through the SOIL (SURFsara Open Innovation Lab) initiative ; SURFsara (Dutch national supercomputing centre) through the SOIL (SURFsara Open Innovation Lab) initiative ; EU Horizon 2020 project COMPAT ; EU Horizon 2020 project COMPAT ; NWO ; NWO ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Xi'an Jiaotong-Liverpool University (XJTLU) ; Xi'an Jiaotong-Liverpool University (XJTLU) ; DFG (German Research Foundation) ; DFG (German Research Foundation) ; SURFsara (Dutch national supercomputing centre) through the SOIL (SURFsara Open Innovation Lab) initiative ; SURFsara (Dutch national supercomputing centre) through the SOIL (SURFsara Open Innovation Lab) initiative ; EU Horizon 2020 project COMPAT ; EU Horizon 2020 project COMPAT ; NWO ; NWO ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Xi'an Jiaotong-Liverpool University (XJTLU) ; Xi'an Jiaotong-Liverpool University (XJTLU) ; DFG (German Research Foundation) ; DFG (German Research Foundation)
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000489288600101
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/28061
Collection中国科学院国家天文台
Corresponding AuthorCai, Maxwell X.; Zwart, S. Portegies
Affiliation1.Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands
2.Xian Jiaotong Liverpool Univ, Dept Mat Sci, 111 Renai Rd,Suzhou Ind Pk, Suzhou 215123, Peoples R China
3.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
4.Chinese Acad Sci, Key Lab Computat Astrophys, 20A Datun Rd, Beijing 100012, Peoples R China
5.Peking Univ, Kavli Inst Astron & Astrophys, 5 Yi He Yuan Rd, Beijing 100871, Peoples R China
6.Heidelberg Univ, Astron Rechen Inst, Zentrum Astron, Monchhofstr 12-14, D-69120 Heidelberg, Germany
Recommended Citation
GB/T 7714
Cai, Maxwell X.,Zwart, S. Portegies,Kouwenhoven, M. B. N.,et al. On the survivability of planets in young massive clusters and its implication of planet orbital architectures in globular clusters[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2019,489(3):4311-4321.
APA Cai, Maxwell X.,Zwart, S. Portegies,Kouwenhoven, M. B. N.,&Spurzem, Rainer.(2019).On the survivability of planets in young massive clusters and its implication of planet orbital architectures in globular clusters.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,489(3),4311-4321.
MLA Cai, Maxwell X.,et al."On the survivability of planets in young massive clusters and its implication of planet orbital architectures in globular clusters".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 489.3(2019):4311-4321.
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