三点相关函数研究进展  

The Progress of the Three-point Correlation Function

作　　者：侯永辉[1] 邹华[2] 

机构地区：[1]中国科学技术大学天体物理中心 [2]河海大学理学院,南京210098

出　　处：《天文学进展》2006年第2期142-159,共18页Progress In Astronomy

基　　金：国家自然科学基金资助项目(105730155)

摘　　要：三点相关函数或傅里叶空间的重谱(bispectrum)是研究由引力不稳定性演化产生的大尺度结构非高斯性质的最低阶统计量。介绍了相关函数的基本理论知识;结合观测和数值模拟的测量结果,以及暗晕模型预言的三点相关函数,阐述了三点相关函数及其傅里叶变换的重谱的研究进展。Three-point correlation function （3PCF） and its Fourier counter part, bispectrum, are the lowest statistics that quantify the non-Gaussian behavior of the large scale structure induced by the gravitational instability. In the present paper, the basic theory of the three-point correlation function and its Fourier counter part, bispectrum, are introduced firstly, then the results of 3PCF and bispectrum measured from the galaxies survey and simulations and predicted by the halo model are summarized.

关 键 词：天体物理学 三点相关函数 综述 大尺度结构 统计性质 

分 类 号：P159.5[天文地球—天文学]