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He, P; Liu, JR; Feng, LL; Shu, CW; Fang, LZ; He, P , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
Low-redshift cosmic baryon fluid on large scales and She-Leveque universal scaling
发表期刊PHYSICAL REVIEW LETTERS
关键词Fully-developed Turbulence Alpha Transmitted Flux Intergalactic Medium Poisson Statistics Burgers Turbulence Intermittency Cosmology Features Forest Field
摘要We investigate the statistical properties of cosmic baryon fluid in the nonlinear regime, which is crucial for understanding the large-scale structure formation of the Universe. With the hydrodynamic simulation sample of the Universe in the cold dark matter model with a cosmological constant, we show that the intermittency of the velocity field of cosmic baryon fluid at redshift z = 0 in the scale range from the Jeans length to about 16 h(-1) Mpc can be extremely well described by She-Leveque's universal scaling formula. The baryon fluid also possesses the following features: (1) for volume weight statistics, the dissipative structures are dominated by sheets, and (2) the relation between the intensities of fluctuations is hierarchical. These results imply that the evolution of highly evolved cosmic baryon fluid is similar to a fully developed turbulence.
2006
ISSN0031-9007
卷号96期号:5页码:-
学科领域Physics
收录类别SCI
引用统计
被引频次:18[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/6041
专题理论物理所科研产出_SCI论文
通讯作者He, P , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
推荐引用方式
GB/T 7714
He, P,Liu, JR,Feng, LL,et al. Low-redshift cosmic baryon fluid on large scales and She-Leveque universal scaling[J]. PHYSICAL REVIEW LETTERS,2006,96(5):-.
APA He, P,Liu, JR,Feng, LL,Shu, CW,Fang, LZ,&He, P , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.(2006).Low-redshift cosmic baryon fluid on large scales and She-Leveque universal scaling.PHYSICAL REVIEW LETTERS,96(5),-.
MLA He, P,et al."Low-redshift cosmic baryon fluid on large scales and She-Leveque universal scaling".PHYSICAL REVIEW LETTERS 96.5(2006):-.
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