Strong and weak gravitational field in R+μ⁴/R gravity
Saaidi, Kh. · Vajdi, A. · Rabiei, S. W. · Aghamohammadi, A. · Sheikhahmadi, H.
Original · EN
We introduce a new approach for investigating the weak field limit of vacuum field equations in f(R) gravity and we find the weak field limit of f(R)=R+μ⁴/R gravity. Furthermore, we study the strong gravity regime in R+μ⁴/R model of f(R) gravity. We show the existence of strong gravitational field in vacuum for such model. We find out in the limit μ→ 0, the weak field limit and the strong gravitational field can be regarded as a perturbed Schwarzschild metric.
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