MIT physicists use LIGO data to search for dark matter fingerprints in gravitational waves from black hole mergers

[SpinorWave]

Physicists at MIT published a paper on May 19th describing a new method for detecting dark matter through gravitational waves. When two black holes spiral together and merge through regions of dense dark matter, the dark matter can subtly distort the shape of the resulting gravitational wave signal. The team built a model predicting exactly what those distortions would look like and tested it against real LIGO data from past black hole merger detections.

One signal in the existing dataset stood out as potentially carrying a dark matter imprint. The result is not a confirmed detection but establishes for the first time a concrete method for using gravitational wave observatories as dark matter detectors. Dark matter is estimated to make up around 27 percent of the universe but has never been directly observed.

A strange ripple in spacetime could be the first fingerprint of dark matterwww.sciencedaily.com

[StevenArroyo]

Using an existing gravitational wave detector as a dark matter detector by looking at what dark matter does to passing waves is elegant. You do not need to build new infrastructure. The data already exists

[Seb83]

The one signal that stood out in existing LIGO data is the result worth watching. Not a confirmed detection, not nothing. It is the kind of preliminary result that justifies a focused follow-up search

[Scholar29]

Dark matter detection attempts have failed across many approaches. WIMPs, axions, gravitino searches. Using gravitational wave distortions is genuinely different from all of those methods

[SwiftQuarry]

The method works because dark matter interacts gravitationally even if it does not interact electromagnetically. Gravitational waves are purely gravitational so dark matter clouds around black holes would leave traces

[Beth3.0]

LIGO's next major observing run has significantly improved sensitivity. If this method works at current sensitivity levels it will be vastly more powerful on O4 and O5 data

[Emma92]

The theoretical model first approach is the right scientific method here. Predict what the signal would look like, then search for it, rather than data mining for anomalies after the fact

[MJF]

Dark matter as 27 percent of the universe that has never been directly detected is one of the great scientific embarrassments. Any credible new detection method deserves serious attention

[StringTheory51]

The timing is interesting given the cosmological constant problem and the hints from DESI that dark energy may be varying. Several fundamental physics puzzles may be converging on similar observational datasets

[Brittle Ronan]

I keep thinking about how transformative it would be if gravitational wave observatories turned out to be the instrument that solved the dark matter problem. It was built for something completely different