Spherical collapse in f(R) gravity
文献类型：期刊论文
| 作者 | Borisov, Alexander1; Jain, Bhuvnesh1; Zhang, Pengjie2 |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2012-03-23 |
| 卷号 | 85期号:6页码:63518 |
| 英文摘要 | We use one-dimensional numerical simulations to study spherical collapse in the f(R) gravity models. We include the nonlinear self-coupling of the scalar field in the theory and use a relaxation scheme to follow the collapse. We find an unusual enhancement in density near the virial radius which may provide observable tests of gravity. We also use the estimated collapse time to calculate the critical overdensity delta(c) c used in calculating the mass function and bias of halos. We find that analytical approximations previously used in the literature do not capture the complexity of nonlinear spherical collapse. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 研究领域[WOS] | Astronomy & Astrophysics ; Physics |
| 关键词[WOS] | DARK ENERGY ; CONSTRAINTS ; COSMOLOGY ; BRANE ; SPACE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000301843600004 |
| 公开日期 | 2015-01-27 |
| 源URL | [http://119.78.226.72//handle/331011/15465]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA 2.Shanghai Astron Observ, Key Lab Res Galaxies & Cosmol, Shanghai, Peoples R China |
| 推荐引用方式 GB/T 7714 | Borisov, Alexander,Jain, Bhuvnesh,Zhang, Pengjie. Spherical collapse in f(R) gravity[J]. PHYSICAL REVIEW D,2012,85(6):63518. |
| APA | Borisov, Alexander,Jain, Bhuvnesh,&Zhang, Pengjie.(2012).Spherical collapse in f(R) gravity.PHYSICAL REVIEW D,85(6),63518. |
| MLA | Borisov, Alexander,et al."Spherical collapse in f(R) gravity".PHYSICAL REVIEW D 85.6(2012):63518. |
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来源：上海天文台
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