Detection of disk-jet coprecession in a tidal disruption event

作者：Yanan Wang, Zikun Lin, Liusuo Wu, Wei‐Hua Lei, Shuyuan Wei, Shuang‐Nan Zhang, Long Ji, S. del Palacio, R. D. Baldi, Yang Huang, Jifeng Liu, Bing Zhang, A. Y. Yang, Rurong Chen, Yangwei Zhang, Ailing Wang, Lei Yang, P. Charalampopoulos, D. R. Williams, Zhu-Heng Yao, Fu‐Guo Xie, De-Fu Bu, Hua Feng, Xinwu Cao, Hongzhou Wu, Wenxiong Li, Erlin Qiao, G. Leloudas, J. P. Anderson, Xinwen Shu, Dheeraj R. Pasham, Hu Zou, M. Nicholl, T. Wevers, T. E. Müller-Bravo, Jingfeng Wang, Jian‐Yan Wei, Yulei Qiu, Weijian Guo, C. P. Gutiérrez, M. Gromadzki, C. Inserra, L. Makrygianni, F. Onori, T. Petrushevska, D. Altamirano, L. Galbany, M. Á. Pérez-Torres, T. W. Chen · 发表于：Science Advances · 年份：2025 · DOI：10.1126/sciadv.ady9068 · 被引用次数：4 · 研究领域：Astrophysical Phenomena and Observations、Pulsars and Gravitational Waves Research、Astrophysics and Cosmic Phenomena

Theories and simulations predict that intense space-time curvature near black holes bends the trajectories of light and matter, driving disk and jet precession under relativistic torques. However, direct observational evidence of disk-jet coprecession remains elusive. Here, we report the most compelling case to date: a tidal disruption event (TDE) exhibiting unprecedented 19.6-day quasi-periodic variations in both x-rays and radio, with x-ray amplitudes exceeding an order of magnitude. The nearly synchronized x-ray and radio variations suggest a shared mechanism regulating the emission regions. We demonstrate that a disk-jet Lense-Thirring precession model successfully reproduces these variations while requiring a low-spin black hole. This study uncovers previously uncharted short-term radio variability in TDEs, highlights the transformative potential of high-cadence radio monitoring, and offers profound insights into disk-jet physics.