4 citations · 8 across the 8 of their papers we have counts for
11 papers
Testing charged bumblebee black holes through high-frequency quasi-periodic oscillations in X-ray binaries
Qi-Qi Liang, De-Jiang Yin, Zi-Qiang Cai +1
We investigate strong-field orbital dynamics for static spherically symmetric charged bumblebee black holes featuring spontaneous Lorentz-violating effects. Analysis of null and ti…
Periodic orbits and gravitational waveforms around a Schwarzschild black hole with a cloud of strings embedded in perfect fluid dark matter
Ziqiang Cai, Zhi Li, Zhenglong Ban +2
In this study, we explore the dynamics of particle orbits and their corresponding gravitational wave signatures in the vicinity of a Schwarzschild black hole (BH) surrounded by a c…
Shadow of rotating black hole surrounded by dark matter
Haiyuan Feng, Ziqiang Cai, Rong-Jia Yang +1
Dark matter (DM), a fundamental cosmic component, motivates the study of its influence on black hole (BH) shadows, especially for spinning BHs confirmed by EHT observations. This w…
Optical Appearance and Ringdown of Black Holes in a Kalb Ramond Field Coupled to Perfect Fluid Dark Matter
Qi-Qi Liang, Zi-Qiang Cai, Dong Liu +1
This paper investigates the optical and dynamical properties of a static spherically symmetric black hole in the presence of a Kalb--Ramond (KR) field coupled to perfect fluid dark…
Connection Between the Shadow Radius and Quasinormal Frequencies for Black Holes in STVG with Perfect Fluid Dark Matter
Ziqiang Cai, Zhi Li, Zhenglong Ban +2
We investigate the connection between black hole shadow and quasinormal mode (QNM) spectra in the context of scalar-tensor-vector gravity (STVG) coupled to perfect fluid dark matte…
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…
Observational properties and quasinormal Modes of the Hayward black Hole surrounded by a cloud of strings
Qi-Qi Liang, Ziqiang Cai, Dong Liu +1
In this work, we explored the Hayward black hole surrounded by a cloud of strings, with a focus on the effects of the regularization parameter and the string cloud parameter $a…
Rotating Charged Black Holes with Scalar Hair Constructed via the Newman-Janis Algorithm: Accretion Disk Structure and Shadow Characteristics
Ziqiang Cai, Zhenglong Ban, Qi-Qi Liang +2
In this paper, we generate a rotating charged black hole (BH) with scalar hair via the Newman--Janis algorithm (NJA) and study its thin accretion disk and shadow. The structure of…
Shadow and thin accretion disk around Ayón-Beato-García black hole coupled with cloud of strings
Ziqiang Cai, Zhenglong Ban, Lu Wang +2
In this paper, we investigate the shadow and thin accretion disk around Ayón-Beato-García (ABG) black hole (BH) coupled with a cloud of strings (CS), characterized by the nonlinear…
Probing Einstein-Maxwell-Scalar Black hole via Thin Accretion Disks and Shadows with EHT Observations of M87* and Sgr A*
Yingdong Wu, Ziqiang Cai, Zhenglong Ban +2
We investigated the shadows and thin accretion disks of Einstein-Maxwell-Scalar (EMS) black hole. Firstly, we investigated the influence of EMS parameters on the black hole shadow…
Thin accretion disk around Schwarzschild-like black hole in bumblebee gravity
Ziqiang Cai, Zhenglong Ban, Lu Wang +2
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.…