NAOC Open IR
The Long-term Evolution of Main-sequence Binaries in DRAGON Simulations
Shu, Qi1,2; Pang, Xiaoying3,4; Dotti, Francesco Flammini3,5; Kouwenhoven, M. B. N.3; Sedda, Manuel Arca6; Spurzem, Rainer2,6,7,8
2021-03-01
Source PublicationASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
ISSN0067-0049
Volume253Issue:1Pages:19
AbstractWe present a comprehensive investigation of main-sequence binaries in the DRAGON simulations, which are the first one-million-particle direct N-body simulations of globular clusters. We analyze the orbital parameters of the binary samples in two of the DRAGON simulations, D1-R7-IMF93 and D2-R7-IMF01, focusing on their secular evolution and correlations up to 12 Gyr. These two models have different initial stellar mass functions: Kroupa 1993 (D1-R7-IMF93) and Kroupa 2001 (D2-R7-IMF01); and different initial mass-ratio distributions: random paring (D1-R7-IMF93) and a power law (D1-R7-IMF93). In general, the mass ratio of a population of binaries increases over time due to stellar evolution, which is less significant in D2-R7-IMF01. In D1-R7-IMF93, primordial binaries with a mass ratio q 0.2 are most common, and the frequency linearly declines with increasing q at all times. Dynamical binaries of both models have higher eccentricities and larger semimajor axes than primordial binaries. They are preferentially located in the inner part of the star cluster. Secular evolution of binary orbital parameters does not depend on the initial mass-ratio distribution, but is sensitive to the initial binary distribution of the system. At t = 12 Gyr, the binary fraction decreases radially outwards, and mass segregation is present. A color difference of 0.1 mag in F330W - F814W and 0.2 mag in NUV - y between the core and the outskirts of both clusters is seen, which is a reflection of the binary radial distribution and the mass segregation in the cluster. The complete set of data for primordial and dynamical binary systems at all snapshot intervals is made publicly available.
KeywordStar clusters Globular star clusters Stellar dynamics Binary stars
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Research Development Fund of Xi'an Jiaotong Liverpool University (XJTLU) ; Research Development Fund of Xi'an Jiaotong Liverpool University (XJTLU) ; Research Development Fund of XJTLU ; Research Development Fund of XJTLU ; XJTLU postgraduate research scholarship ; XJTLU postgraduate research scholarship ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Sonderforschungsbereich "The Milky Way System" ; Sonderforschungsbereich "The Milky Way System" ; Sino-German Cooperation Project ; Sino-German Cooperation Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Research Development Fund of Xi'an Jiaotong Liverpool University (XJTLU) ; Research Development Fund of Xi'an Jiaotong Liverpool University (XJTLU) ; Research Development Fund of XJTLU ; Research Development Fund of XJTLU ; XJTLU postgraduate research scholarship ; XJTLU postgraduate research scholarship ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Sonderforschungsbereich "The Milky Way System" ; Sonderforschungsbereich "The Milky Way System" ; Sino-German Cooperation Project ; Sino-German Cooperation Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Research Development Fund of Xi'an Jiaotong Liverpool University (XJTLU) ; Research Development Fund of Xi'an Jiaotong Liverpool University (XJTLU) ; Research Development Fund of XJTLU ; Research Development Fund of XJTLU ; XJTLU postgraduate research scholarship ; XJTLU postgraduate research scholarship ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Sonderforschungsbereich "The Milky Way System" ; Sonderforschungsbereich "The Milky Way System" ; Sino-German Cooperation Project ; Sino-German Cooperation Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Research Development Fund of Xi'an Jiaotong Liverpool University (XJTLU) ; Research Development Fund of Xi'an Jiaotong Liverpool University (XJTLU) ; Research Development Fund of XJTLU ; Research Development Fund of XJTLU ; XJTLU postgraduate research scholarship ; XJTLU postgraduate research scholarship ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Sonderforschungsbereich "The Milky Way System" ; Sonderforschungsbereich "The Milky Way System" ; Sino-German Cooperation Project ; Sino-German Cooperation Project
DOI10.3847/1538-4365/abcfb8
Language英语
Funding ProjectNational Natural Science Foundation of China[11673032] ; National Natural Science Foundation of China[11503015] ; National Natural Science Foundation of China[11573004] ; Research Development Fund of Xi'an Jiaotong Liverpool University (XJTLU)[RDF-18-02-32] ; Research Development Fund of XJTLU[RDF-16-01-16] ; XJTLU postgraduate research scholarship ; Alexander von Humboldt Foundation ; Sonderforschungsbereich "The Milky Way System"[SFB 881] ; Sino-German Cooperation Project[GZ1284]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Research Development Fund of Xi'an Jiaotong Liverpool University (XJTLU) ; Research Development Fund of Xi'an Jiaotong Liverpool University (XJTLU) ; Research Development Fund of XJTLU ; Research Development Fund of XJTLU ; XJTLU postgraduate research scholarship ; XJTLU postgraduate research scholarship ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Sonderforschungsbereich "The Milky Way System" ; Sonderforschungsbereich "The Milky Way System" ; Sino-German Cooperation Project ; Sino-German Cooperation Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Research Development Fund of Xi'an Jiaotong Liverpool University (XJTLU) ; Research Development Fund of Xi'an Jiaotong Liverpool University (XJTLU) ; Research Development Fund of XJTLU ; Research Development Fund of XJTLU ; XJTLU postgraduate research scholarship ; XJTLU postgraduate research scholarship ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Sonderforschungsbereich "The Milky Way System" ; Sonderforschungsbereich "The Milky Way System" ; Sino-German Cooperation Project ; Sino-German Cooperation Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Research Development Fund of Xi'an Jiaotong Liverpool University (XJTLU) ; Research Development Fund of Xi'an Jiaotong Liverpool University (XJTLU) ; Research Development Fund of XJTLU ; Research Development Fund of XJTLU ; XJTLU postgraduate research scholarship ; XJTLU postgraduate research scholarship ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Sonderforschungsbereich "The Milky Way System" ; Sonderforschungsbereich "The Milky Way System" ; Sino-German Cooperation Project ; Sino-German Cooperation Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Research Development Fund of Xi'an Jiaotong Liverpool University (XJTLU) ; Research Development Fund of Xi'an Jiaotong Liverpool University (XJTLU) ; Research Development Fund of XJTLU ; Research Development Fund of XJTLU ; XJTLU postgraduate research scholarship ; XJTLU postgraduate research scholarship ; Alexander von Humboldt Foundation ; Alexander von Humboldt Foundation ; Sonderforschungsbereich "The Milky Way System" ; Sonderforschungsbereich "The Milky Way System" ; Sino-German Cooperation Project ; Sino-German Cooperation Project
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000624482000001
PublisherIOP PUBLISHING LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/79551
Collection中国科学院国家天文台
Corresponding AuthorPang, Xiaoying
Affiliation1.Peking Univ, Sch Phys, Dept Astron, Yiheyuan Lu 5, Beijing 100871, Peoples R China
2.Peking Univ, Kavli Inst Astron & Astrophys, Yiheyuan Lu 5, Beijing 100871, Peoples R China
3.Xian Jiaotong Liverpool Univ, Dept Phys, 111 Renai Rd,Suzhou Ind Pk, Suzhou 215123, Peoples R China
4.Shanghai Normal Univ, Shanghai Key Lab Astrophys, 100 Guilin Rd, Shanghai 200234, Peoples R China
5.Univ Liverpool, Dept Phys, Liverpool L69 3BX, Merseyside, England
6.Heidelberg Univ, Zentrum Astron, Astronom Rechen Inst, Monchhofstr 12-14, D-69120 Heidelberg, Germany
7.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China
8.Chinese Acad Sci, Key Lab Computat Astrophys, 20A Datun Rd, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Shu, Qi,Pang, Xiaoying,Dotti, Francesco Flammini,et al. The Long-term Evolution of Main-sequence Binaries in DRAGON Simulations[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2021,253(1):19.
APA Shu, Qi,Pang, Xiaoying,Dotti, Francesco Flammini,Kouwenhoven, M. B. N.,Sedda, Manuel Arca,&Spurzem, Rainer.(2021).The Long-term Evolution of Main-sequence Binaries in DRAGON Simulations.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,253(1),19.
MLA Shu, Qi,et al."The Long-term Evolution of Main-sequence Binaries in DRAGON Simulations".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 253.1(2021):19.
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