Approaches to spherically symmetric solutions in f(T) gravity

Abstract

We study properties of static spherically symmetric solutions in $f(\mathbb{T})$ gravity. Based on our previous work on generalising Bianchi identities for this kind of theories, we show how this search of solutions can be reduced to the study of two relatively simple equations. One of them does not depend on the function $f$ and therefore describes the properties of such solutions in any $f(\mathbb{T})$ theory. Another equation is the radial one and, if a possible solution is chosen, it allows to find out which function $f$ is suitable for it. We use these equations to find exact and perturbative solutions for arbitrary and specific choices off.

arXiv comment10 pages, 1 figure; discussion and references added

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