THE TWO-POINT CORRELATION FUNCTION OF GAMMA-RAY BURSTS
Li, MH; Lin HN(林海南); Lin, HN
刊名ASTROPHYSICAL JOURNAL
2015
卷号807期号:1页码:76
关键词cosmology: observations gamma-ray burst: general large-scale structure of universe methods: statistical
学科分类Astronomy & Astrophysics
DOI10.1088/0004-637X/807/1/76
文章类型Article
英文摘要In this paper, we examine the spatial distribution of gamma-ray bursts (GRBs) using a sample of 373 objects. We subdivide the GRB data into two redshift intervals over the redshift range 0 < z < 6.7. We measure the two-point correlation function, xi(r), of the GRBs. In determining the separation distance of the GRB pairs, we consider two representative cosmological models: a cold dark matter universe plus a cosmological constant Lambda, with (Omega(m), Omega(Lambda)) = (0.28, 0.72), and an Einstein-de Sitter universe, with (Omega(m), Omega(Lambda)) = (1, 0). We find a z-decreasing correlation of the GRB distribution, which is in agreement with the predictions of the current structure formation theory. We fit a power-law model xi(r) = (r/r(0))(-gamma) to the measured xi(r) and obtain an amplitude and slope of r(0) = 1235.2 +/- 342.6 h(-1) Mpc and gamma = 0.80 +/- 0.19, respectively (1 sigma confidence level), over the scales r = 200-10(4) h(-1) Mpc. Our results provide a supplement to the measurement of matter correlation on large scales, while the matter distribution below 200 h(-1) Mpc is usually described by the correlation function of galaxies.
类目[WOS]Astronomy & Astrophysics
收录类别SCI
WOS记录号WOS:000358945200076
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/228572
专题中国科学院高能物理研究所_理论物理室_期刊论文
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Li, MH,Lin HN,Lin, HN. THE TWO-POINT CORRELATION FUNCTION OF GAMMA-RAY BURSTS[J]. ASTROPHYSICAL JOURNAL,2015,807(1):76.
APA Li, MH,林海南,&Lin, HN.(2015).THE TWO-POINT CORRELATION FUNCTION OF GAMMA-RAY BURSTS.ASTROPHYSICAL JOURNAL,807(1),76.
MLA Li, MH,et al."THE TWO-POINT CORRELATION FUNCTION OF GAMMA-RAY BURSTS".ASTROPHYSICAL JOURNAL 807.1(2015):76.
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