http://arxiv.org/abs/2103.05643
The Kerr geometry admits the Carter symmetry, which ensures that the geodesic equations are integrable. It is shown that gravitational waveforms associated with extreme-mass-ratio inspirals involving a non-integrable compact object display `glitch’ phenomena, where the frequencies of gravitational waves increase abruptly, when the orbit crosses certain spacetime regions known as Birkhoff islands. The presence or absence of these features in data from upcoming space-borne detectors will therefore allow not only for tests of general relativity, but also of fundamental spacetime symmetries.
K. Destounis, A. Suvorov and K. Kokkotas
Thu, 11 Mar 21
27/62
Comments: 5 pages, 2 figures, accepted for publication in Physical Review Letters