Gürses, MetinŞişman, T. Ç.Tekin, B.2020-02-112020-02-1120192470-0010http://hdl.handle.net/11693/53251The Bañados-Teitelboim-Zanelli (BTZ) black hole metric solves the three-dimensional Einstein’s theory with a negative cosmological constant as well as all the generic higher derivative gravity theories based on the metric; as such it is a universal solution. Here, we find, in all generic higher derivative gravity theories, new universal non-Einsteinian solutions obtained as Kerr-Schild type deformations of the BTZ black hole. Among these, the deformed nonextremal BTZ black hole loses its event horizon while the deformed extremal one remains intact as a black hole in any generic gravity theory.EnglishGravitationCosmologyAstrophysicsAlternative gravity theoriesGravity in dimensions other than fourArticle10.1103/PhysRevD.100.064053