论文标题

探测$ r^{ - n} $用系外行星的牛顿电位的修改

Probing a $r^{-n}$ modification of the Newtonian potential with Exoplanets

论文作者

Ruggiero, Matteo Luca, Iorio, Lorenzo

论文摘要

越来越精确的数据对转运系外行星的越来越精确的数据表明,将这些系统作为可能的重力模型使用这些系统的可能性。特别是,我们建议,牛顿电势的扰动中的小说后(PK)动力学效应,因为正方形或距离宿主星质量的距离的立方体破坏了异常,严厉和暂停时期的堕落。后者是二进制系统运动中的特征时间间隔,并且在纯粹的开普勒案中重合。我们在存在上述扰动的情况下制定了他们的分析表达式,以产生有关限制所考虑的重力模型所提出的方法的潜在的初步见解。与文献中存在的其他结果进行了比较。

The growing availability of increasingly accurate data on transiting exoplanets suggests the possibility of using these systems as possible testbeds for modified models of gravity. In particular, we suggest that the post-Keplerian (pK) dynamical effects from the perturbations of the Newtonian potential falling off as the square or the cube of the distance from the mass of the host star break the degeneracy of the anomalistic, draconitic and sidereal periods. The latter are characteristic temporal intervals in the motion of a binary system, and all coincide in the purely Keplerian case. We work out their analytical expressions in presence of the aforementioned perturbations to yield preliminary insights on the potential of the method proposed for constraining the modified models of gravity considered. A comparison with other results existing in the literature is made.

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