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arXiv · 2005.10694

Thin shells in F(R) gravity with non-constant scalar curvature

Ernesto F. Eiroa·Griselda Figueroa-Aguirre
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Abstract

We introduce two classes of spherically symmetric spacetimes having a thin shell of matter, in non-quadratic F(R) theories of gravity with non-constant scalar curvature R. In the first, the thin shell joins an inner region with an outer one, while in the second it corresponds to the throat of a wormhole. In both scenarios, we analyze the stability of the static configurations under radial perturbations. As particular examples in spacetimes with a cosmological constant, we present charged thin shells surrounding a non-charged black hole and charged thin-shell wormholes. We show that in both cases stable solutions are possible for suitable values of the parameters.

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Ernesto F. Eiroa, Griselda Figueroa-Aguirre. 2020-05-21. Thin shells in F(R) gravity with non-constant scalar curvature. https://doi.org/10.1140/epjp/s13360-020-00793-y

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