Probing the Time Variation of the Effective Newton's Constant with Optimal Redshift Weights
文献类型：期刊论文
| 作者 | Li, Jian1,2; Zhao, Gong-Bo1,3,4 |
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2019-05-20 |
| 卷号 | 877期号:1页码:7 |
| 关键词 | cosmological parameters cosmology: theory dark energy distance scale large-scale structure of universe |
| ISSN号 | 0004-637X |
| DOI | 10.3847/1538-4357/ab16eb |
| 英文摘要 | We propose a new method for probing the time variation of the effective Newton's constant G(eff), based on the optimal redshift weighting scheme, and demonstrate the efficacy using the DESI galaxy spectroscopic survey. We find that with the optimal redshift weights, the evolution of G(eff) (z) can be significantly better measured: the uncertainty of G(eff )(z) can be reduced by a factor of 2.2 similar to 12.8 using the DESI Bright Galaxy Survey sample at z less than or similar to 0.45, and by a factor of 1.3 similar to 4.4 using the DESI Emission Line Galaxies sample covering 0.65 less than or similar to z less than or similar to 1.65. |
| WOS关键词 | OSCILLATION SPECTROSCOPIC SURVEY ; BARYON ACOUSTIC-OSCILLATIONS ; DR14 QUASAR SAMPLE ; STRUCTURE GROWTH ; EXPANSION RATE ; TOMOGRAPHIC MEASUREMENT ; GALAXIES ; COSMOLOGY |
| 资助项目 | National Key Basic Research and Development Program of China[2018YFA0404503] ; National Basic Research Program of China (973 Program)[2015CB857004] ; NSFC[11720101004] ; NSFC[11673025] ; NSFC[11711530207] ; University of Portsmouth |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000468632600008 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | National Key Basic Research and Development Program of China ; National Key Basic Research and Development Program of China ; National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program) ; NSFC ; NSFC ; University of Portsmouth ; University of Portsmouth ; National Key Basic Research and Development Program of China ; National Key Basic Research and Development Program of China ; National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program) ; NSFC ; NSFC ; University of Portsmouth ; University of Portsmouth ; National Key Basic Research and Development Program of China ; National Key Basic Research and Development Program of China ; National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program) ; NSFC ; NSFC ; University of Portsmouth ; University of Portsmouth ; National Key Basic Research and Development Program of China ; National Key Basic Research and Development Program of China ; National Basic Research Program of China (973 Program) ; National Basic Research Program of China (973 Program) ; NSFC ; NSFC ; University of Portsmouth ; University of Portsmouth |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/26301]  |
| 专题 | 中国科学院国家天文台 |
| 通讯作者 | Li, Jian |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 100049, Peoples R China 4.Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 3FX, Hants, England |
| 推荐引用方式 GB/T 7714 | Li, Jian,Zhao, Gong-Bo. Probing the Time Variation of the Effective Newton's Constant with Optimal Redshift Weights[J]. ASTROPHYSICAL JOURNAL,2019,877(1):7. |
| APA | Li, Jian,&Zhao, Gong-Bo.(2019).Probing the Time Variation of the Effective Newton's Constant with Optimal Redshift Weights.ASTROPHYSICAL JOURNAL,877(1),7. |
| MLA | Li, Jian,et al."Probing the Time Variation of the Effective Newton's Constant with Optimal Redshift Weights".ASTROPHYSICAL JOURNAL 877.1(2019):7. |
入库方式： OAI收割
来源：国家天文台
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