activity
20192026
most citedThe shadows and observational appearance of a noncommutative black hole surrounded by various profiles of accretions

105 citations · 453 across the 16 of their papers we have counts for

collaborators

16 papers

gr-qc2026

Energy Extraction via Magnetic Reconnection from Rotating ModMax Black Holes

Shi-Hao Wang, Ke-Jian He, Guo-Ping Li +1

Magnetic reconnection has been widely recognized as an important mechanism for extracting energy from rapidly rotating black holes. We find that magnetic reconnection can also effi…

gr-qc2025★ 2 cited

Optical Images of Mini Boson Stars in Palatini Gravity

Xiao-Xiong Zeng, Chen-Yu Yang, Yu-Xiang Huang +3

We investigate the optical properties of mini boson stars within the framework of Palatini gravity, adopting a quadratic form , where is the gravitation…

astro-ph.HE2024

Observational features of the rotating Bardeen black hole surrounded by perfect fluid dark matter

Ke-Jian He, Guo-Ping Li, Chen-Yu Yang +1

By employing ray-tracing techniques, we investigate the shadow images of rotating Bardeen black holes surrounded by perfect fluid dark matter. In this work, two models are consider…

gr-qc2024

The shadow and observational images of the non-singular rotating black holes in loop quantum gravity

Guo-Ping Li, He-Bin Zheng, Ke-Jian He +1

By considering the celestial light source and the thin disk source, we employ the backward ray-tracing method to carefully study the shadow, inner shadow and observational images o…

gr-qc2023★ 1 cited

Holographic Einstein rings of a Gauss-Bonnet AdS black hole

Xiao-Xiong Zeng, Ke-Jian He, Jin Pu +1

Based on the AdS/CFT correspondence, we studied the holographic Einstein images of a Gauss-Bonnet AdS black hole in the bulk from a given response function on AdS boundary. For the…

gr-qc2022★ 71 cited

QED and accretion flow models effect on optical appearance of Euler-Heisenberg black holes

Xiao-Xiong Zeng, Ke-Jian He, Guo-Ping Li +2

Taking the quantum electrodynamics (QED) effect into account, we investigate the geometrical-optics appearance of the Euler-Heisenberg (EH) black hole (BH) under the different accr…

gr-qc2022★ 65 cited

The shadow and photon sphere of the charged black hole in Rastall gravity

Sen Guo, Ke-Jian He, Guan-Ru Li +1

Considering a charged black hole (BH) surrounded by a perfect fluid radiation field (PFRF) in Rastall gravity, we investigate this BH shadow and photon sphere on different spherica…

gr-qc2021★ 2 cited

Effect of dark matter on shadows and rings of a brane-world black hole illuminated by various accretions

Xiao-Xiong Zeng, Ke-Jian He, Guo-Ping Li

In this paper, by taking the accretions into account, the observational shadows and rings casted by the Brane-world black hole are numerically investigated when the observer locate…

gr-qc2021★ 89 cited

Shadows and rings of the Kehagias-Sfetsos black hole surrounded by thin disk accretion

Guo-Ping Li, Ke-Jian He

In this paper, under the illumination of thin disk accretion, we have employed the ray-tracing method to carefully investigate shadows and rings of the Kehagias-Sfetsos(KS) black h…

hep-th2021★ 105 cited

The shadows and observational appearance of a noncommutative black hole surrounded by various profiles of accretions

Xiao-Xiong Zeng, Guo-Ping Li, Ke-Jian He

The accretion around the black hole plays a pivotal role in the theoretical analysis of black hole shadow, and of the black hole observation in particular. In this paper, we mainly…

gr-qc2020★ 8 cited

Testing thermodynamic laws and weak cosmic censorship conjecture of conformal anomaly corrected AdS black hole

Guo-Ping Li, Ke-Jian He, Bing-Bing Chen

By dropping particles into black hole, we have employed the recently new assumption [1] that the change of the black hole mass(enthalpy) should be the same amount as the energy of…

gr-qc2020★ 2 cited

Lorentz Violation, Quantum Tunneling and Information Conservation

Guo-Ping Li, Ke-Jian He, Bing-Bing Chen

In this paper, by introducing a Lorentz-invariance-violation (LIV) class of dispersion relations (DR) suppressed by the second power , we have investigated the effect…

gr-qc2020★ 14 cited

Thermodynamics and weak cosmic censorship conjecture of an AdS black hole with a monopole in the extended phase space

Xin-Yun Hu, Ke-Jian He, Xiao-Xiong Zeng +1

The first law of black hole thermodynamics in the extended phase space is prevailing recently. However, the second law as well as the weak cosmic censorship conjecture has not been…

hep-th2019★ 27 cited

Violations of the weak cosmic censorship conjecture in the higher dimensional black holes with pressure

Ke-Jian He, Guo-Ping Li, Xin-Yun Hu

We adopt the energy momentum relation of charged particles to study the thermodynamics laws and weak cosmic censorship conjecture of -dimensional AdS black holes in diffe…

gr-qc2019★ 28 cited

The weak cosmic censorship conjecture and thermodynamics in the quintessence AdS black hole under charge particle absorption

Ke-Jian He, Xin-Yun Hu, Xiao-Xiong Zeng

Considering the cosmological constant as the pressure, we mainly study the laws of thermodynamics and weak cosmic censorship conjecture in the Reissner-Nordström-AdS black hole sur…

hep-th2019★ 39 cited

Weak cosmic censorship conjecture with pressure and volume in the Gauss-Bonnet AdS black hole

Xiao-Xiong Zeng, Xin-Yun Hu, Ke-Jian He

With the Hamilton-Jacobi equation, we obtain the energy-momentum relation of a charged particle as it is absorbed by the Gauss-Bonnet AdS black hole. On the basis of the energy-mom…