Modified scalar-tensor-vector gravity theory and the constraint on its parameters
文献类型：期刊论文
| 作者 | Deng, Xue-Mei1 ; Xie, Yi2; Huang, Tian-Yi2,3
|
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2009-02-01 |
| 卷号 | 79期号:4页码:044014' |
| 关键词 | POST-NEWTONIAN EQUATIONS PREFERRED-FRAME THEORIES NONBARYONIC DARK-MATTER GENERAL-RELATIVITY GRAVITATIONAL-WAVES CONSERVATION LAWS EQUIVALENCE PRINCIPLE EARTH-SATELLITE MASSIVE BODIES BINARY-SYSTEMS |
| ISSN号 | 1550-7998 |
| 英文摘要 | A gravity theory called scalar-tensor-vector gravity (STVG) has been recently developed and succeeded in solar system, astrophysical, and cosmological scales without dark matter 1. However, two assumptions have been used: (i) B(r)=A(-1)(r), where B(r) and A(r) are g(00) and g(rr) in the Schwarzschild coordinates (static and spherically symmetric); (ii) scalar field G=Const. in the solar system. These two assumptions actually imply that the standard parametrized post-Newtonian parameter gamma=1. In this paper, we relax these two assumptions and study STVG further by using the post-Newtonian approximation approach. With abandoning the assumptions, we find gamma not equal 1 in general cases of STVG. Then, a version of modified STVG is proposed through introducing a coupling function of scalar field G: theta(G). We have derived the metric and equations of motion in 1PN for general matter without specific equation of state and N point masses firstly. Subsequently, the secular periastron precession omega of binary pulsars in harmonic coordinates is given. After discussing two parametrized post-Newtonian parameters (gamma and beta) and two Yukawa parameters (alpha and lambda), we use omega of four binary pulsars data (PSR B1913+16, PSR B1534+12, PSR J0737-3039, and PSR B2127+11C) to constrain the Yukawa parameters for modified STVG: lambda=(3.97 +/- 0.01)x10(8) m and alpha=(2.40 +/- 0.02)x10(-8) if we fix |2 gamma-beta-1|=0. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics; Physics |
| 类目[WOS] | Astronomy & Astrophysics ; Physics, Particles & Fields |
| 研究领域[WOS] | Astronomy & Astrophysics ; Physics |
| 关键词[WOS] | POST-NEWTONIAN EQUATIONS ; PREFERRED-FRAME THEORIES ; NONBARYONIC DARK-MATTER ; GENERAL-RELATIVITY ; GRAVITATIONAL-WAVES ; CONSERVATION LAWS ; EQUIVALENCE PRINCIPLE ; EARTH-SATELLITE ; MASSIVE BODIES ; BINARY-SYSTEMS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000263816800065 |
| 公开日期 | 2011-12-08 |
| 源URL | [http://159.226.72.40/handle/332002/1675]  |
| 专题 | 紫金山天文台_历算和天文参考系研究团组 |
| 作者单位 | 1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 2.Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China 3.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Deng, Xue-Mei,Xie, Yi,Huang, Tian-Yi. Modified scalar-tensor-vector gravity theory and the constraint on its parameters[J]. PHYSICAL REVIEW D,2009,79(4):044014'. |
| APA | Deng, Xue-Mei,Xie, Yi,&Huang, Tian-Yi.(2009).Modified scalar-tensor-vector gravity theory and the constraint on its parameters.PHYSICAL REVIEW D,79(4),044014'. |
| MLA | Deng, Xue-Mei,et al."Modified scalar-tensor-vector gravity theory and the constraint on its parameters".PHYSICAL REVIEW D 79.4(2009):044014'. |
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来源：紫金山天文台
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