星空有约丨我国科研人员首次发现：双黑洞背后可能隐藏第三个致密天体

Core Viewpoint - The latest research by the Shanghai Astronomical Observatory reveals that binary black hole mergers may occur near a third dense object, providing new insights into the formation of binary black holes and marking a significant advancement in gravitational wave astronomy [2][4]. Group 1: Research Findings - The research team, led by researcher Han Wenbiao, proposes that binary black holes could be captured by a supermassive dense object, forming a "trio" system [2]. - The study focuses on gravitational wave event GW190814, where the two black holes have a mass difference of nearly 10 times, suggesting the presence of a third dense object [4]. - The team developed a gravitational wave waveform template that includes "line-of-sight acceleration," which alters the frequency of gravitational waves, leaving a unique signature in the signals [4]. Group 2: Methodology and Evidence - The research utilized Bayesian inference methods to analyze multiple high signal-to-noise ratio binary black hole events, confirming the presence of "line-of-sight acceleration" in the GW190814 event [4]. - The findings provide strong evidence for the existence of a third dense object influencing the dynamics of the binary black holes [4]. - The research paper was published in the international astronomical journal "Astrophysical Journal Letters" on August 1 [4].