Principal component analysis of modified gravity using weak lensing and peculiar velocity measurements
文献类型：期刊论文
| 作者 | Asaba, Shinsuke1; Hikage, Chiaki2; Koyama, Kazuya3; Zhao, Gong-Bo3,4 ; Hojjati, Alireza5; Pogosian, Levon3,6,7
|
| 刊名 | JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
 |
| 出版日期 | 2013-08-01 |
| 期号 | 8 |
| 关键词 | modified gravity redshift surveys weak gravitational lensing |
| 英文摘要 | We perform a principal component analysis to assess ability of future observations to measure departures from General Relativity in predictions of the Poisson and anisotropy equations on linear scales. In particular, we focus on how the measurements of redshift-space distortions (RSD) observed from spectroscopic galaxy redshift surveys will improve the constraints when combined with lensing tomographic surveys. Assuming a Euclid-like galaxy imaging and redshift survey, we find that adding the 3D information decreases the statistical uncertainty by a factor between 3 and 7 compared to the case when only observables from lensing tomographic surveys are used. We also find that the number of well-constrained modes increases by a factor between 3 and 6. Our study indicates the importance of joint galaxy imaging and redshift surveys such as SuMIRe and Euclid to give more stringent tests of the Lambda CDM model and to distinguish between various modified gravity and dark energy models. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000324032800032 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/5973]  |
| 专题 | 国家天文台_星系宇宙学研究部 |
| 作者单位 | 1.Nagoya Univ, Dept Phys, Grad Sch Sci, Aichi 4648602, Japan 2.Nagoya Univ, KMI, Aichi 4648602, Japan 3.Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 3FX, Hants, England 4.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 5.Ewha Womans Univ, Inst Early Universe, Seoul 120750, South Korea 6.Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada 7.Univ Cambridge, DAMTP, Ctr Theoret Cosmol, Cambridge CB3 0WA, England |
| 推荐引用方式 GB/T 7714 | Asaba, Shinsuke,Hikage, Chiaki,Koyama, Kazuya,et al. Principal component analysis of modified gravity using weak lensing and peculiar velocity measurements[J]. JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS,2013(8). |
| APA | Asaba, Shinsuke,Hikage, Chiaki,Koyama, Kazuya,Zhao, Gong-Bo,Hojjati, Alireza,&Pogosian, Levon.(2013).Principal component analysis of modified gravity using weak lensing and peculiar velocity measurements.JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS(8). |
| MLA | Asaba, Shinsuke,et al."Principal component analysis of modified gravity using weak lensing and peculiar velocity measurements".JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS .8(2013). |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。