4 papers
Gravitational lensing and observational features of a dynamic black hole
Ke-Jian He, Guo-Ping Li, Li-Fang Li +1
In this work, we investigate the gravitational lensing effects and the dynamic evolution of the shadow of Vaidya black holes by employing backward ray-tracing techniques. Within th…
Probing Observable Features of Lorentz violation in Low-Energy HoÅava Gravity with Accretion Disk Images of Black Hole
Meng-Die Zhao, Yu-Yan Wang, Ke-Jian He +1
In this paper, we study the observable signatures of Lorentz violation (LV) in low-energy Horava gravity by simulating the images and polarization features of rotating LV black hol…
Energy Extraction from Rotating Charged Black Holes in Kalb-Ramond Gravity
Jin-Tao Yao, Ke-Jian He, Zi-Chao Lin +1
This work presents a comprehensive study of energy extraction via the Comisso-Asenjo magnetic reconnection mechanism from rotating charged black holes in the context of Kalb-Ramond…
Observational features of massive boson stars with thin disk accretion
Guo-Ping Li, Meng-Qi Wu, Ke-Jian He +1
In this paper, based on the action of a complex scalar field minimally coupled to a gravitational field, we numerically obtain a series of massive boson star solutions in a spheric…