Selected Research Highlights

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Observation of a runaway black hole

The final black hole left behind after a binary black hole merger can attain recoil velocities up to 5000 km/s, large enough to be ejected from any galaxy. The authors find the first evidence for a large recoil velocity from a gravitational-wave signal, with a velocity of ~1500 km/s (90% uncertainty of ~900 km/s). more

Evaluating laser systems for future gravitational-wave detectors

Next-generation detectors will use lasers at longer wavelengths. Which currently available laser systems could serve as prototypes? more

Strong squeezing of higher-order Hermite-Gaussian modes

Paving the way towards less thermal noise in third-generation gravitational-wave detectors more

Through the numerical looking glass

3D visualisations of numerical relativity simulations improve understanding of neutron star mergers more

Spin-orbit resonances: first hints from LIGO-Virgo

Spin measurements from binary black hole mergers observed by gravitational-wave detectors carry valuable clues about how these binaries form in nature. Theorists have predicted that binaries could be attracted towards special configurations called spin-orbit resonances, where the spin and orbital angular momenta become locked into a resonant plane. The authors find first potential signs of these resonances in gravitational-wave data. more

When precession and higher harmonics play together

How well can gravitational waves help us extract astrophysical information from precessing black hole binaries? more

Open gravitational-wave catalog no. 4

New independent analysis of public LIGO/Virgo data by AEI researchers identifies 94 signals, 7 of which not reported previously more

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