Professor Chae Kyu-hyun from the Department of Physics and Astronomy at Sejong University has made significant advancements in the realm of astrophysics by developing an enhanced algorithm that utilizes three-dimensional velocity data to measure the internal gravity of long-period binary star systems more accurately. This research addresses the phenomenon of gravitational anomalies in the weak acceleration domain, which has become a focal point in recent scientific discussions. The study's findings are published in the prestigious journal, The Astrophysical Journal Letters, and provide a groundbreaking foundation for quickly and precisely verifying these gravimetric anomalies.

The gravitational anomalies posed in weak acceleration zones signal potential fundamental limitations of not just Newton's law of universal gravitation, but also Einstein's theory of general relativity. Such insights could have far-reaching impacts on the fields of astrophysics, cosmology, and theoretical physics, garnering significant attention within the international scientific community. Professor Chae's methodology of utilizing 3D velocity data for gravity measurements was introduced in 2025, and this research fine-tunes the optimization of that algorithm, furthering its applications and efficacy in studying the dynamics of wide binary systems.

Chae highlighted that the new algorithm is designed to precisely validate existing gravitational theories and quantitatively assess any anomalies present. Inspired by the principles governing binary systems under current gravitational theories, he focused on employing the laws of elliptical orbits and areas at constant velocities as core principles in the algorithm's development. Additionally, preliminary results from applying this new algorithm to a finely measured sample of binary stars demonstrate its potential, indicating that subtle internal accelerations greater than approximately 1 nm/s² can be accurately detected, marking a significant milestone in astrophysical measurements.