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arXiv 0811.3860gr-qc
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太阳系中的约束后牛顿f(R)引力

Constraining Post-Newtonian f(R) Gravity in the Solar System

Matteo Luca Ruggiero, Lorenzo Iorio

摘要:

我们考虑了几种f(R)引力模型,这些模型在适当的弱场极限下可以用来描述太阳的引力场。使用微扰的方法,我们专注于的影响,修改的引力场,由于非线性的引力拉格朗日,对太阳系动力学。我们比较的理论预测的经度岁差的近心点$\varpi$的测试粒子与修正的标准牛顿-爱因斯坦岁差的近日点的太阳系的一些行星最近估计的大型数据集拟合的各种版本的天文历。

英文摘要:

We consider some models of f(R) gravity that can be used to describe, in a suitable weak-field limit, the gravitational field of the Sun. Using a perturbative approach, we focus on the impact that the modifications of the gravitational field, due to the non-linearity of the gravity Lagrangian, have on the Solar System dynamics. We compare the theoretical predictions for the precession of the longitude of the pericentre $\varpi$ of a test particle with the corrections to the standard Newtonian-Einsteinian precessions of the longitudes of perihelia of some planets of the Solar System recently estimated by E.V. Pitjeva by fitting large data sets with various versions of the EPM ephemerides.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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