New upper limits on deviation from the inverse-square law of gravity in the solar system:a Yukawa parameterization

作     者：Zi-Wei Li Sheng-Feng Yuan Chang Lu Yi Xie 

作者机构：School of Astronomy and Space ScienceNanjing University Key Laboratory of Modern Astronomy and AstrophysicsNanjing UniversityMinistry of Education 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2014年第14卷第2期

页      面：139-143页

核心收录：

学科分类：07[理学] 070402[理学-天体测量与天体力学] 0704[理学-天文学] 

基　　金：Supported by the National Natural Science Foundation of China 

主　　题：gravitation    ephemerides    celestial mechanics 

摘      要：New physics beyond the standard model of particles might cause deviation from the inverse-square law of gravity. In many theoretical models of modified gravity, it is parameterized by the Yukawa correction to the Newtonian gravitational force in terms of two parameters α and λ. Here α is a dimensionless strength parameter and A is a length scale. Using the supplementary advances in perihelia provided by INPOP10a and EPM2011 ephemerides, we obtain new upper limits on the deviation from the inverse-square law when the uncertainty of the Sun＇s quadrupole moment is taken into account. We find that INPOP10a yields the upper limits as α =- 3.1× 10-11 and λ= 0.15 au, and EPM2011 gives α = 5.2 × 10-11 and λ=- 0.21 au. In both of them, α is at least 10 times less than the previous results.