COLA with scale-dependent growth: applications to screened modified gravity models
文献类型：期刊论文
| 作者 | Koyama, Kazuya2; Manera, Marc3,4; Wright, Bill S.2; Zhao, Gong-Bo1,2 ; Winther, Hans A.2
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| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
 |
| 出版日期 | 2017-08-01 |
| 期号 | 8 |
| 关键词 | Cosmological Simulations Modified Gravity |
| DOI | 10.1088/1475-7516/2017/08/006 |
| 文献子类 | Article |
| 英文摘要 | We present a general parallelized and easy-to-use code to perform numerical simulations of structure formation using the COLA (COmoving Lagrangian Acceleration) method for cosmological models that exhibit scale-dependent growth at the level of first and second order Lagrangian perturbation theory. For modified gravity theories we also include screening using a fast approximate method that covers all the main examples of screening mechanisms in the literature. We test the code by comparing it to full simulations of two popular modified gravity models, namely f(R) gravity and nDGP, and find good agreement in the modified gravity boost-factors relative to ACDM even when using a fairly small number of COLA time steps. |
| WOS关键词 | COMPARISON PROJECT ; CODE ; CATALOGS ; COSMOLOGY ; GENERATION ; MATTER ; RAMSES ; BRANE ; MASS |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000408311900006 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/20139]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Univ Portsmouth, Inst Cosmol & Gravitat, Dennis Sciama Bldg,Burnaby Rd, Portsmouth PO1 3FX, Hants, England 3.Univ Cambridge, Kavli Inst Cosmol, Madingley Rd, Cambridge CB3 0HA, England 4.Univ Cambridge, Dept Appl Math & Theoret Phys, Ctr Theoret Cosmol, Wilberforce Rd, Cambridge CB3 0WA, England |
| 推荐引用方式 GB/T 7714 | Koyama, Kazuya,Manera, Marc,Wright, Bill S.,et al. COLA with scale-dependent growth: applications to screened modified gravity models[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2017(8). |
| APA | Koyama, Kazuya,Manera, Marc,Wright, Bill S.,Zhao, Gong-Bo,&Winther, Hans A..(2017).COLA with scale-dependent growth: applications to screened modified gravity models.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(8). |
| MLA | Koyama, Kazuya,et al."COLA with scale-dependent growth: applications to screened modified gravity models".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .8(2017). |
入库方式： OAI收割
来源：国家天文台
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