Within Einstein’s theory of gravity, any compact object heavier than a few solar masses must be a black hole. Any observation showing otherwise would imply either new physics beyond general relativity or new exotic matter fields beyond the standard model and might provide a portal to understand some puzzling properties of a black hole. We give a short overview on tests of the nature of dark compact objects with present and future gravitational-wave observations, including inspiral tests of the multipolar structure of compact objects and of their tidal deformability, ringdown tests, and searches for near-horizon structures with gravitational-wave echoes.
CITATION STYLE
Maggio, E., Pani, P., & Raposo, G. (2022). Testing the Nature of Dark Compact Objects with Gravitational Waves. In Handbook of Gravitational Wave Astronomy (pp. 1139–1175). Springer Singapore. https://doi.org/10.1007/978-981-16-4306-4_29
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