Low-redshift cosmic baryon fluid on large scales and She-Leveque universal scaling
文献类型：期刊论文
| 作者 | He, P; Liu, JR; Feng, LL ; Shu, CW; Fang, LZ
|
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 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. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Physics |
| 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 |
| 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. |
入库方式： OAI收割
来源：紫金山天文台
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