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f (T) gravity: effects on astronomical observations and Solar system experiments and upper bounds
Xie, Yi1,3; Deng, Xue-Mei2,3; Xie, Y (reprint author), Nanjing Univ, Dept Astron, Nanjing 210093, Jiangsu, Peoples R China. Email: yixie@nju.edu.cn
2013-08-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume433Issue:4Pages:3584-3589
AbstractThe 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.
KeywordGravitation Relativistic Process Astrometry Celestial Mechanics
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1093/mnras/stt991
WOS KeywordPLANETARY EPHEMERIDES ; GENERAL-RELATIVITY ; SPACECRAFT ; SUPERNOVAE ; TESTS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000322405900065
Citation statistics
Cited Times:37[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/9945
Collection行星科学与深空探测实验室
Corresponding AuthorXie, Y (reprint author), Nanjing Univ, Dept Astron, Nanjing 210093, Jiangsu, Peoples R China. Email: yixie@nju.edu.cn
Affiliation1.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
Recommended Citation
GB/T 7714
Xie, Yi,Deng, Xue-Mei,Xie, Y . 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,&Xie, Y .(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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