Merging black holes do not violate the no-hair theorem

the verdict

SUPPORTED

the evidence backs this

Recorded sources

2 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Observations of gravitational-wave ringdowns from merging black holes consistently support the validity of the no-hair theorem in general relativity.

The analysis

Empirical gravitational wave data from black hole mergers (such as GW150914 and GW231123) test the remnant properties against general relativity predictions, finding strong agreement with the no-hair theorem. The other retrieved papers discuss theoretical extensions, shadows, or unrelated topics, but papers 0 and 10 directly support the empirical compatibility of merging black holes with the theorem.

Evidence for · 2

Testing the No-Hair Theorem with GW150914.

Recorded source metadata

Isi M, Giesler M, Farr WM, Scheel MA, Teukolsky SA. Testing the No-Hair Theorem with GW150914.. 2019. https://doi.org/10.1103/physrevlett.123.111102

Gravitational-wave observations of binary black-hole mergers, such as GW150914, show that the properties of the remnant black hole align with the predictions of a Kerr black hole under the no-hair theorem.

Source citation format

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More for · 1

Detection of a Higher Harmonic Quasi-normal Mode in the Ringdown Signal of GW231123

Recorded source metadata

Fan Y, Wang H, Tang S, Li P. Detection of a Higher Harmonic Quasi-normal Mode in the Ringdown Signal of GW231123. 2025. https://doi.org/10.21203/rs.3.rs-7546124/v1

Analyses of multi-mode ringdown signals from black hole mergers like GW231123 yield inferred remnant properties that are consistent with the no-hair theorem in general relativity.

Source citation format

The paper trail · every fact has a biography

first checked01 Aug 2026

judged → SUPPORTED · 8401 Aug 2026

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