Departamento de Física, Instituto Superior Técnico, CENTRA, Universidade Técnica de Lisboa-UTL, Avenida Rovisco Pais 1, 1049 Lisboa, Portugal and Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2J 2W9, Canada and Department of Physics and Astronomy, The University of Mississippi, University, Mississippi 38677, USA.
Phys Rev Lett. 2013 Sep 13;111(11):111101. doi: 10.1103/PhysRevLett.111.111101. Epub 2013 Sep 10.
We uncover two mechanisms that can render Kerr black holes unstable in scalar-tensor gravity, both associated with 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.
我们揭示了两种可以使标量-张量引力中的 Kerr 黑洞不稳定的机制，这两种机制都与黑洞附近物质的存在以及这会给标量引入有效质量的事实有关。我们的结果强调了在标量-张量理论中理解现实天体物理黑洞时空结构的重要性。
