New AI Algorithm Analyzes Neutron Star Collisions 3,600 Times Faster Than Conventional Techniques

Priyadharshini S April 11, 2025 | 11:45 AM Technology

Real-time computation is essential because it allows astronomers to respond immediately to neutron star mergers, which emit not only gravitational waves but also visible light and other electromagnetic radiation. Swift and precise analysis of gravitational-wave data enables scientists to quickly pinpoint the source, allowing telescopes to be directed toward the event in time to capture these fleeting signals.

Figure 1. AI Breakthrough Accelerates Neutron Star Collision Analysis by 3,600x

As Maximilian Dax, lead author of the study and a Ph.D. student at the Max Planck Institute for Intelligent Systems, ETH Zurich, and the ELLIS Institute Tübingen, explains: Figure 1 shows AI Breakthrough Accelerates Neutron Star Collision Analysis by 3,600x

“Rapid and accurate analysis of the gravitational-wave data is crucial to localize the source and point telescopes in the right direction as quickly as possible to observe all the accompanying signals.”

This new real-time method could become the benchmark for analyzing neutron star mergers, giving the global astronomy community a crucial time advantage once the LIGO-Virgo-KAGRA (LVK) detectors identify an event.

“Current rapid analysis algorithms used by the LVK make approximations that sacrifice accuracy. Our new study addresses these shortcomings,” explains Jonathan Gair, group leader in the Astrophysical and Cosmological Relativity Department at the Max Planck Institute for Gravitational Physics in the Potsdam Science Park.

In contrast, the new machine learning framework precisely determines key characteristics of the neutron star merger—such as masses, spins, and location—in just one second, without relying on such approximations. This enables a 30% improvement in pinpointing the sky position of the event.

Thanks to its speed and accuracy, the neural network provides essential data that supports coordinated observations between gravitational-wave detectors and electromagnetic telescopes. This enhances the search for visible light and other signals from the merger, ensuring optimal use of valuable telescope time.

Catching a Neutron Star Merger in the Act

“Gravitational wave analysis is particularly challenging for binary neutron stars, so for DINGO-BNS, we had to develop various technical innovations. This includes, for example, a method for event-adaptive data compression,” explains Stephen Green, UKRI Future Leaders Fellow at the University of Nottingham.

Bernhard Schölkopf, Director of the Empirical Inference Department at MPI-IS and at the ELLIS Institute Tübingen, emphasizes the broader impact: “Our study showcases the effectiveness of combining modern machine learning methods with physical domain knowledge.”

DINGO-BNS could ultimately enable the detection of electromagnetic signals before and during the actual collision of neutron stars. “Such early multi-messenger observations could provide new insights into the merger process and the subsequent kilonova, which are still mysterious,” says Alessandra Buonanno, Director of the Astrophysical and Cosmological Relativity Department at the Max Planck Institute for Gravitational Physics.

Source: SciTECHDaily

Cite this article:

Priyadharshini S (2025), New AI Algorithm Analyzes Neutron Star Collisions 3,600 Times Faster Than Conventional Techniques, AnaTechMaz, pp.339

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