f (T) gravity: effects on astronomical observations and Solar system experiments and upper bounds
文献类型：期刊论文
| 作者 | Xie, Yi1,3; Deng, Xue-Mei2,3
|
| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
 |
| 出版日期 | 2013-08-01 |
| 卷号 | 433期号:4页码:3584-3589 |
| 关键词 | gravitation relativistic process astrometry celestial mechanics |
| ISSN号 | 0035-8711 |
| 通讯作者 | Xie, Y (reprint author), Nanjing Univ, Dept Astron, Nanjing 210093, Jiangsu, Peoples R China. Email: yixie@nju.edu.cn |
| 英文摘要 | The effects of the f (T) gravity have previously been investigated and constrained by using perihelion advances. As an extension of previous work and as an attempt to find more stringent constraints on its parameters, we investigate here its effects on astronomical observations and on experiments conducted in the Solar system. The expression for f (T) contains a quadratic correction of alpha*T-2 (where alpha is a model parameter) and the cosmological constant Lambda. Using a spherical solution describing the Sun's gravitational field, the resulting secular evolution of planetary orbital motions, in addition to the light deflection, gravitational time delay and frequency shift are calculated up to the leading contribution. From these results, we find qualitatively that the light deflection provides a unique bound on alpha, without dependence on Lambda, and that the time delay experiments during inferior conjunction impose a clean constraint on Lambda, regardless of alpha. Based on observations and experiments, especially the supplementary advances in the perihelia provided by the INPOP10a ephemeris, we obtain the upper bounds quantitatively: vertical bar alpha vertical bar < 1.2 x 10(2) m(2) and vertical bar Lambda vertical bar < 1.8 x 10(-43) m(-2), which are at least 10 times tighter than the previous results. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | PLANETARY EPHEMERIDES ; GENERAL-RELATIVITY ; SPACECRAFT ; SUPERNOVAE ; TESTS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000322405900065 |
| 公开日期 | 2014-01-08 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/9945]  |
| 专题 | 紫金山天文台_行星科学与深空探测实验室 |
| 作者单位 | 1.Nanjing Univ, Dept Astron, Nanjing 210093, Jiangsu, Peoples R China 2.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China 3.Nanjing Univ, Key Lab Modern Astron & Astrophys, Minist Educ, Nanjing 210093, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, Yi,Deng, Xue-Mei. f (T) gravity: effects on astronomical observations and Solar system experiments and upper bounds[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2013,433(4):3584-3589. |
| APA | Xie, Yi,&Deng, Xue-Mei.(2013).f (T) gravity: effects on astronomical observations and Solar system experiments and upper bounds.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,433(4),3584-3589. |
| MLA | Xie, Yi,et al."f (T) gravity: effects on astronomical observations and Solar system experiments and upper bounds".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 433.4(2013):3584-3589. |
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来源：紫金山天文台
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