Supersymmetric backgrounds and black holes in (Formula presented.) cosmological new massive supergravity

Abstract: Using an off-shell Killing spinor analysis we perform a systematic investigation of the supersymmetric background and black hole solutions of the N=1,1(Formula presented.) Cosmological New Massive Gravity model. The solutions with a null Killing vector are the same pp-wave solutions that one finds in the N=1(Formula presented.) model but we find new solutions with a time-like Killing vector that are absent in the N=1(Formula presented.) case. An example of such a solution is a Lifshitz spacetime. We also consider the supersymmetry properties of the so-called rotating hairy BTZ black holes and logarithmic black holes in an AdS₃ background. Furthermore, we show that under certain assumptions there is no supersymmetric Lifshitz black hole solution.