在太阳系尺度上非分析f(R)引力的意义
Implications of non-analytical f(R) gravity at Solar-System scales
摘要:
我们推导并分析了引力场的非解析拉格朗日量的弱场极限。在研究了模型的参数空间后,我们对表征这类理论的参数施加了约束,即我们建立了这种解决方案适用的有效范围,并通过与行星轨道的比较来细化约束。因此,我们认为这类模型在不同的天体物理尺度下都是可行的。
英文摘要:
We motivate and analyze the weak-field limit of a non-analytical Lagrangian for the gravitational field. After investigating the parameter space of the model, we impose constraints on the parameters characterizing this class of theories imposed by Solar-System data, i.e. we establish the validity range where this solution applies and refine the constraints by the comparison with planetary orbits. As a result, we claim that this class of models is viable within different astrophysical scales.
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