Papers › Accelerating Tests of General Relativity with Gravitational-Wave Signals using Hybrid Sampling

Accelerating Tests of General Relativity with Gravitational-Wave Signals using Hybrid Sampling

26 Aug 2022arXiv:2208.12872links table onlyarchive 2025-07-28

Noah E. Wolfe, Colm Talbot, Jacob Golomb

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The Advanced LIGO/Virgo interferometers have observed ∼100 gravitational-wave transients enabling new questions to be answered about relativity, astrophysics, and cosmology. However, many of our current procedures for computing these constraints will not scale well with the increased size of future transient catalogs. We introduce a novel hybrid sampling method in order to more efficiently perform parameterized tests of general relativity with gravitational-wave signals. Applying our method to the binary black hole merger GW150914 and simulated signals we find that our method is approximately an order of magnitude more efficient than the current method with conservative settings for our hybrid analysis. While we have focused on the specific problem of measuring potential deviations from relativity, our method is of much wider applicability to any problem that can be decomposed into a simple and more complex model(s).

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