@Article{Nascimento_etal2019,
author="Nascimento, J. R.
and Olmo, G. J.
and Porfirio, P. J.
and Petrov, A. Y.
and Soares, A. R.",
title="Global monopole in Palatini f(R) gravity",
journal="Physical Review D",
year="2019",
publisher="Amer Physical Soc",
volume="99",
number="6",
pages="064053--11pp",
abstract="We consider the space-time metric generated by a global monopole in an extension of general relativity (GR) of the form f(R) = R -- lambda R-2. The theory is formulated in the metric-affine (or Palatini) formalism, and exact analytical solutions are obtained. For lambda < 0, one finds that the solution has the same characteristics as the Schwarzschild black hole with a monopole charge in Einstein{\textquoteright}s GR. For lambda > 0, instead, the metric is more closely related to the Reissner-Nordstrom metric with a monopole charge and, in addition, it possesses a wormhole-like structure that allows for the geodesic completeness of the spacetime. Our solution recovers the expected limits when lambda = 0 and also at the asymptotic far limit. The angular deflection of light in this space-time in the weak field regime is also calculated.",
optnote="WOS:000462920100010",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3966), last updated on Wed, 22 May 2019 10:45:31 +0000",
issn="2470-0010",
doi="10.1103/PhysRevD.99.064053",
opturl="https://arxiv.org/abs/1812.00471",
opturl="https://doi.org/10.1103/PhysRevD.99.064053",
language="English"
}