21 citations · 27 across the 7 of their papers we have counts for
7 papers
Deviations from Kerr: Polar critical curves and photon rings in a class of separable spacetimes
Hao-Peng Yan, Xiang-Qian Li, Xiao-Jun Yue
Black-hole critical curves and photon rings provide complementary probes of strong-field geometry, motivating a unified analytic description of these observables beyond Kerr and a…
Near-extremal asymptotics and strong cosmic censorship for black holes immersed in a Chaplygin-like dark fluid
Hao-Peng Yan, Zeng-Yi Zhang, Xiang-Qian Li +1
We investigate strong cosmic censorship (SCC) for massless scalar perturbations of electrically neutral black holes immersed in a Chaplygin-like dark fluid (CDF). The matter distri…
Optical Appearance of the Kerr-Bertotti-Robinson Black Hole with a Magnetically Driven Synchrotron Emissivity Model
Zeng-Yi Zhang, Xiang-Qian Li, Hao-Peng Yan +1
We investigate the optical appearance of a Kerr-Bertotti-Robinson (Kerr-BR) black hole illuminated by a geometrically and optically thin accretion disk. Instead of using a phenomen…
Gravitational-wave imprints of Kerr--Bertotti--Robinson black holes: frequency blue-shift and waveform dephasing
Xiang-Qian Li, Hao-Peng Yan, Xiao-Jun Yue
We investigate the orbital dynamics and gravitational wave signatures of neutral Extreme Mass Ratio Inspirals (EMRIs) in the spacetime of a Kerr black hole immersed in an asymptoti…
Images of shadow and thin accretion disk around Bardeen black hole surrounded by perfect fluid dark matter
Haiyuan Feng, Ziqiang Cai, Hao-Peng Yan +2
We investigate the shadow and optical appearance of Bardeen black hole (BH) immersed in perfect fluid dark matter (PFDM). Using EHT observations of M87* and Sgr A*, we constrain th…
Cosmological Constraints on 4D Einstein-Gauss-Bonnet Gravity and Kaniadakis Holographic Dark Energy: Implications for Black Hole Shadows
Xiang-Qian Li, Hao-Peng Yan, Xiao-Jun Yue
The direct imaging of black holes by the Event Horizon Telescope (EHT) enables strong-field tests of gravity. We study the cosmological evolution and the black-hole shadow radius i…
Geodesic structure, shadow and optical appearance of black hole immersed in Chaplygin-like dark fluid
Xiang-Qian Li, Hao-Peng Yan, Xiao-Jun Yue +2
In this study, we focus on a black hole immersed in a cosmological Chaplygin-like dark fluid (CDF), characterized by the equation of state and an additional parameter …