Probing Lorentz-violating effects via precession and accretion disk images in a rotating bumblebee spacetime
South China University of Technology（华南理工大学）
Qing Ou, Zhen-Bo Wu, Qian Wan, Peng-Cheng Li
备注：
Revised version after journal publication, with clarifications concerning the geometrical interpretation of the spacetime and the inner-boundary prescription. The main results and conclusions remain unchanged. Published in JCAP 08 (2026) 080
We investigate kinematic and optical signatures of Lorentz violation in the strong-field region of a rotating bumblebee spacetime generated by a scalar-gradient bumblebee field. For generic nonextremal rotating configurations with $al\neq0$, the surface $r=r_+$ is curvature singular and is therefore modeled phenomenologically as a perfectly absorbing inner boundary in the ray-tracing calculation. By analyzing the spin precession of test gyroscopes and equatorial timelike geodesics, we find that Lorentz violation suppresses the Lense--Thirring precession of static observers, enhances geodetic precession in the static, spherically symmetric limit, and increases the periastron-precession frequency of bound circular orbits. Images of a geometrically thin accretion disk further show that the Lorentz violation has a negligible impact on the critical curve, while shrinking the inner-shadow-like feature associated with the absorbing boundary and enhancing the lensed ring. These results suggest that selected precession observables and exterior imaging features may provide complementary diagnostics of Lorentz-violating effects in strong-field gravity, whereas the central dark feature remains dependent on the adopted inner-boundary prescription.
Constrain from shadows of $M87^*$ and $Sgr A^*$ and quasiperiodic oscillations of galactic microquasars on a black hole arising from metric-affine bumblebee model
When Bumblebee Meets NLED: Lorentz-Violating Black Holes and Regular Spacetimes
Center for Joint Quantum Studies, Department of Physics, School of Science, Tianjin University（天津大学理学院物理系联合量子研究中心）；The International Joint Institute of Tianjin University, Fuzhou, Tianjin University（天津大学福州国际联合学院）
Primordial black hole in Lorentz-violating theories: Insights from Bumblebee gravity
Institute for Research in Fundamental Sciences (IPM)（基础科学研究所）；Damghan University（达姆甘大学）；Khazar University（哈萨尔大学）；K. N. Toosi University of Technology（科·恩·托伊西理工大学）
Thermodynamics and Optical Properties of Charged Black Holes in Bumblebee gravity Sourced by a Cloud of Strings
The Assam Royal Global University（阿萨姆皇家全球大学）；The Institute of Mathematical Sciences, C. I. T. Campus（马哈拉施特拉理工学院数学科学研究所）；Al-Hussein Bin Talal University（侯赛因·本·塔拉勒大学）
Lorentz violation and Hawking--Page metastability in Bumblebee--AdS gravity
Zhejiang University/University of Illinois at Urbana-Champaign (ZJU-UIUC) Institute, Zhejiang University（浙江大学/伊利诺伊大学厄巴纳香槟校区联合学院，浙江大学）；Westlake University（西湖大学）；Westlake Institute for Advanced Study（西湖高等研究院）；Canadian Quantum Research Center（加拿大量子研究中心）
Weak field deflection angle and analytical parameter estimation of the Lorentz-violating Bumblebee parameter through the black hole shadow using EHT data
Lorentz-violating modifications to particle dynamics, thermodynamics and vacuum energy in bumblebee gravity
Universidade Federal da Paraíba（帕拉伊巴联邦大学）；Universidade Federal de Campina Grande（坎皮纳格兰德联邦大学）；Khazar University（哈扎尔大学）；Eastern Mediterranean University（东地中海大学）；University of Hradec Králové（赫拉德茨-克拉洛韦大学）；Al-Farabi Kazakh National University（阿里-法拉比哈萨克国立大学）
Gravitational aspects of a new bumblebee black hole
Universidade Federal da Paraíba（帕拉伊巴联邦大学）；Universidade Federal de Campina Grande（坎皮纳格兰德联邦大学）；Khazar University（哈扎尔大学）；Damghan University（达姆甘大学）；Federal University of Paraíba（帕拉伊巴联邦大学）
Universidade Federal de Mato Grosso（马托格罗索联邦大学）；Universidade Federal da Paraíba（帕拉伊巴联邦大学）；Universidade Federal de Campina Grande（坎皮纳格兰德联邦大学）；Khazar University（阿塞拜疆可汗大学）
East China University of Science and Technology（华东理工大学）；Universidade Federal da Paraíba（帕拉伊巴联邦大学）；Universidade Federal de Campina Grande（坎皮纳大联邦大学）；Khazar University（哈扎尔大学）
The neutrino behavior in the Einstein$\text{-}$Hilbert$\text{-}$Bumblebee gravity around global monopole field
College Pharmacy, Guizhou University of Traditional Chinese Medicine（贵州中医药大学药学院）；School of Science, Guiyang University（贵阳学院理学院）；College of Physics, Guizhou University（贵州大学物理学院）
Gravitational Wave Standard Sirens as Probes of Lorentz Violation in Bumblebee Gravity
University of KwaZulu–Natal（夸祖鲁-纳塔尔大学）；University of Tashkent for Applied Sciences（塔什干应用科学大学）；Central Asian University（中亚大学）；Ulugh Beg Astronomical Institute（乌鲁伯格天文学研究所）；Universidad de La Frontera（拉弗龙特拉大学）；Kimyo International University in Tashkent（塔什干化学国际大学）；Alfraganus University（阿尔法拉甘努斯大学）
Charged particles and fields in bumblebee gravity: Periodic orbits and superradiance
Faculdade de Ciências Naturais, Universidade Federal do Pará（帕拉拉联邦大学自然科学学院）；Departamento de Física, Universidade Federal da Paraíba（帕拉伊巴联邦大学物理系）；Instituto de Física, Universidade Federal Fluminense（弗鲁米嫩塞联邦大学物理研究所）；Departamento de Física, Universidade Federal de Campina Grande（坎皮纳格兰德联邦大学物理系）；Center for Theoretical Physics, Khazar University（阿塞拜疆可汗大学理论物理中心）
