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Astronomical Constraints on Some Long-Range Models of Modified Gravity

机译:修正重力的某些长距离模型的天文约束

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We use the corrections to the Newton-Einstein secular precessions of the longitudes of the perihelia of the inner planets, phenomenologically estimated E.V. Pitjeva by fitting almost one century of data with the EPM2004 ephemerides, to constrain some long-range models of modified gravity recently put forth to address the dark energy and dark matter problems. They are the four-dimensional ones obtained with the addition of inverse powers and logarithm of some curvature invariants, and the DGP multidimensional braneworld model. After working out the analytical expressions of the secular perihelion precessions induced by the corrections to the Newtonian potential of such models, we compare them to the estimated extra-rates of perihelia by taking their ratio for different pairs of planets instead of using one perihelion at a time for each planet separately, as done so far in literature. The curvature invariants-based models are ruled out, even by rescaling by a factor 10 the errors in the estimated planetary orbital parameters. Less neat is the situation for the DGP model. Only the general relativistic Lense-Thirring effect, not included, as the other exotic models considered here, by Pitjeva in the EPM force models, passes such a test.
机译:我们使用对内行星近日点经度的牛顿-爱因斯坦世俗岁差的修正,从现象学上估计E.V.皮特耶娃(Pitjeva)通过将近一个世纪的数据与EPM2004星历表拟合来约束最近为解决暗能量和暗物质问题而提出的一些修正重力的远程模型。它们是通过添加一些曲率不变量的反幂和对数以及DGP多维braneworld模型获得的四维模型。在计算出由此类模型的牛顿势修正引起的世俗近日点进动的解析表达式后,我们将它们与估计的近日点额外费率进行比较,方法是将它们对不同行星对的比率取而代之,而不是在一个行星上使用一个近日点。到目前为止,每个行星的时间都是分开的,正如文献中所述。即使将估计的行星轨道参数中的误差按比例缩放10倍,也可以排除基于曲率不变性的模型。 DGP模型的情况不太那么整齐。皮特耶娃(Pitjeva)在EPM力模型中,只有一般相对论的拉恩-特林环效应(不包括此处讨论的其他奇异模型)可以通过这种检验。

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