English

Thin accretion disk around Schwarzschild-like black hole in bumblebee gravity

General Relativity and Quantum Cosmology 2025-10-30 v5

Abstract

The physical properties and optical appearance of a thin accretion disk surrounding a Schwarzschild-like black hole (BH) are investigated within the framework of bumblebee gravity. To understand how the Lorentz symmetry breaking (LSB) parameter ll affects the disk's behavior, we analyze main characteristics such as energy flux, temperature distribution, and emission spectrum. In addition, direct and secondary images of the accretion disk are generated and examined to explore how both the observational inclination angle and the LSB parameter ll shape the visual profile. Furthermore, we compute the redshift and observed flux distributions of the disk from the perspective of distant observers at various inclination angles. Our results indicate that the redshift factor grows as ll decreases. When the parameter ll assumes negative values, the BH exhibits enhanced luminosity with decreasing ll. These findings highlight the crucial influence of the LSB parameter ll on the observable features of BHs.

Keywords

Cite

@article{arxiv.2503.08424,
  title  = {Thin accretion disk around Schwarzschild-like black hole in bumblebee gravity},
  author = {Ziqiang Cai and Zhenglong Ban and Lu Wang and Haiyuan Feng and Zheng-Wen Long},
  journal= {arXiv preprint arXiv:2503.08424},
  year   = {2025}
}

Comments

14 pages, 12 figures

R2 v1 2026-06-28T22:15:51.105Z