2013/08/31 by Vitor Cardoso, Isabella P. Carucci, Paolo Pani +1
Physics and Astronomy · #astro-ph.HE #gr-qc #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevlett.111.111101
published as Phys.Rev.Lett. 111, 111101 (2013) · 5 pages. Published version. arXiv admin note: substantial text overlap with arXiv:1305.6936
arxiv created 2013/10/08 · arxiv updated 2015/06/17
We uncover two mechanisms that can render Kerr black holes unstable in scalar-tensor gravity, both associated to the presence of matter in the vicinity of the black hole and the fact that this introduces an effective mass for the scalar. Our results highlight the importance of understanding the structure of spacetime in realistic, astrophysical black holes in scalar-tensor theories.