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The product of the globular cluster collapse
ZHOU, Y; Li KH(李开华)
发表期刊ASTROPHYSICS AND SPACE SCIENCE
1992-08
卷号194期号:1页码:131-142
DOI10.1007/BF00643729
产权排序第2完成单位
收录类别SCI
摘要In 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.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-640X
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WOS记录号WOS:A1992JN96200002
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]X-RAY SOURCES ; BLACK-HOLES ; EXOSAT OBSERVATIONS ; TIDAL CAPTURE ; 4U 1820-30 ; NGC 6624 ; DISCOVERY ; BURSTS ; BINARIES ; SYSTEMS
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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6909
专题星系研究组
通讯作者ZHOU, Y
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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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