Low-redshift cosmic baryon fluid on large scales and She-Leveque universal scaling

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 毫米波和亚毫米波技术实验室

	Low-redshift cosmic baryon fluid on large scales and She-Leveque universal scaling
	He, P ; Liu, JR ; Feng, LL; Shu, CW ; Fang, LZ
刊名	PHYSICAL REVIEW LETTERS
	2006-02-10
卷号	96 期号:5 页码:051302
关键词	FULLY-DEVELOPED TURBULENCE ALPHA TRANSMITTED FLUX INTERGALACTIC MEDIUM POISSON STATISTICS BURGERS TURBULENCE INTERMITTENCY COSMOLOGY FEATURES FOREST FIELD
ISSN号	0031-9007
英文摘要	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.
学科主题	Physics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	FULLY-DEVELOPED TURBULENCE ; ALPHA TRANSMITTED FLUX ; INTERGALACTIC MEDIUM ; POISSON STATISTICS ; BURGERS TURBULENCE ; INTERMITTENCY ; COSMOLOGY ; FEATURES ; FOREST ; FIELD
收录类别	SCI
语种	英语
WOS记录号	WOS:000235252200017
公开日期	2012-02-07
内容类型	期刊论文
源URL	[http://159.226.72.40/handle/332002/3534]
专题	紫金山天文台_毫米波和亚毫米波技术实验室
作者单位	1.Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China 2.Univ Sci & Technol China, Ctr Astrophys, Anhua 230026, Peoples R China 3.Acad Sinica, Purple Mt Observ, Nanjing 210008, Peoples R China 4.Brown Univ, Div Appl Math, Providence, RI 02912 USA 5.Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
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):051302.
APA	He, P,Liu, JR,Feng, LL,Shu, CW,&Fang, LZ.(2006).Low-redshift cosmic baryon fluid on large scales and She-Leveque universal scaling.PHYSICAL REVIEW LETTERS,96(5),051302.
MLA	He, P,et al."Low-redshift cosmic baryon fluid on large scales and She-Leveque universal scaling".PHYSICAL REVIEW LETTERS 96.5(2006):051302.