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The product of the globular cluster collapse
ZHOU, Y; Li KH(李开华)
Source PublicationASTROPHYSICS AND SPACE SCIENCE
1992-08
Volume194Issue:1Pages:131-142
DOI10.1007/BF00643729
Contribution Rank第2完成单位
Indexed BySCI
AbstractIn this paper we calculate the number of close binaries formed during the evolution process of a globular cluster core. The globular cluster core is assumed to contain a massive black hole at its center. We show that the central black hole can drive binaries formation in the core and the rate of binaries formation depends on the mass of the black hole at its center. When the mass M of the black hole is between 10(2) M. and 3 x 10(3) M., there will be a few binaries formed. When the mass of the black hole is 4 x 10(3) M. less-than-or-equal-to M less-than-or-equal-to 6 x 10(3) M. the number of binary star formation will suddenly increase with a jump to the maximum value approximately 58. When the mass of the black hole is 7 x 10(3) M. less-than-or-equal-to M less-than-or-equal-to 9 x 10(3) M., the number of binary star will immediately decrease. Whether cluster X-ray is produced mainly by the central black hole or by binaries in the core depends on the mass of the central black hole. Therefore, two cases arise: namely, black hole accretion domination and binaries radiation domination. We do think that we cannot exclude the possibility of the existence of a central black hole even when binary radiation characteristics have been observed in globular cluster X-ray sources.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-640X
URL查看原文
WOS IDWOS:A1992JN96200002
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordX-RAY SOURCES ; BLACK-HOLES ; EXOSAT OBSERVATIONS ; TIDAL CAPTURE ; 4U 1820-30 ; NGC 6624 ; DISCOVERY ; BURSTS ; BINARIES ; SYSTEMS
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6909
Collection星系研究组
Corresponding AuthorZHOU, Y
Recommended Citation
GB/T 7714
ZHOU, Y,Li KH. The product of the globular cluster collapse[J]. ASTROPHYSICS AND SPACE SCIENCE,1992,194(1):131-142.
APA ZHOU, Y,&李开华.(1992).The product of the globular cluster collapse.ASTROPHYSICS AND SPACE SCIENCE,194(1),131-142.
MLA ZHOU, Y,et al."The product of the globular cluster collapse".ASTROPHYSICS AND SPACE SCIENCE 194.1(1992):131-142.
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