Thin shells in (2+1)-dimensional F(R) gravity

ERNESTO F. EIROA; GRISELDA FIGUEROA AGUIRRE

Physical Review D

Amer Physical Soc

Lugar: New York; Año: 2021 vol. 103 p. 44011 - 44011

2470-0010

We study thin shells of matter in (2+1)-dimensional F(R) theories of gravity with constant scalar curvature R. We consider a wide class of spacetimes with circular symmetry, in which a thin shell joins an inner region with an outer one. We analyze the stability of the static configurations under radial perturbations. As examples of spacetimes asymptotically anti-de Sitter, we present a charged bubble and a charged thin shell surrounding a noncharged black hole. In both cases, we show that stable solutions can be found for suitable values of the parameters.