论文标题

改良电静脉引力的太阳系测试

Solar System Tests in Modified Teleparallel Gravity

论文作者

Bahamonde, Sebastian, Said, Jackson Levi, Zubair, M.

论文摘要

在本文中,我们基于任意函数$ f(t,b)$研究了不同的太阳系测试,取决于标量扭转$ t $和边界项$ b $。为此,我们首先找到了Schwarzschild周围的新的扰动球形对称解决方案,以针对任意Lagrangian的不同幂律形式。然后,对于每个模型,我们计算了光子球体,近调偏移,光的偏转,Cassini实验,Shapiro延迟和重力红移。最后,我们通过这些太阳系测试的不同已知实验来面对这些计算,以在上述模型上构成不同的界限。然后,我们得出结论,$ f(t,b)$与这些太阳系实验兼容,这些实验具有与宇宙学相关的广泛参数。

In this paper, we study different Solar System tests in a modified Teleparallel gravity theory based on an arbitrary function $f(T,B)$ which depends on the scalar torsion $T$ and the boundary term $B$. To do this, we first find new perturbed spherically symmetric solutions around Schwarzschild for different power-law forms of the arbitrary Lagrangian. Then, for each model we calculated the photon sphere, perihelion shift, deflection of light, Cassini experiment, Shapiro delay and the gravitational redshift. Finally, we confront these computations with different known experiments from these Solar System tests to put different bounds on the mentioned models. We then conclude that $f(T,B)$ is compatible with these Solar System experiments with a wide range of parameters which are relevant for cosmology.

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