期刊
PHYSICS LETTERS B
卷 787, 期 -, 页码 8-15出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2018.09.060
关键词
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资金
- FCT-IF programme
- European Union's Horizon 2020 research and innovation programme [StronGrHEP-690904, FunFiCO-777740]
- CIDMA project [UID/MAT/04106/2013]
- CENTRA project [UID/FIS/00099/2013]
- FCT [PTDC/FISOUT/28407/2017]
- COST Action GW-verse [CA16104]
Spinning black holes in dynamical Einstein-Chern-Simons gravity are constructed by directly solving the field equations, without resorting to any perturbative expansion. This model is obtained by adding to the Einstein-Hilbert action a particular higher-curvature correction: the Pontryagin density, linearly coupled to a scalar field. The spinning black holes are stationary, axi-symmetric, asymptotically flat generalisations of the Kerr solution of Einstein's gravity, but they possess a non-trivial (odd-parity) scalar field. They are regular on and outside the horizon and satisfy a generalized Smarr relation. We discuss the deviations from Kerr at the level of the spin and mass distribution, the horizon angular velocity, the ergo-region and some basic properties of geodesic motion. For sufficiently small values of the Chern-Simons coupling our results match those previously obtained using a perturbative approach. (C) 2018 The Author(s). Published by Elsevier B.V.
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