Publications (38)
Unveiling the unconventional optical signatures of regular black holes within accretion disk
Sen Guo, Yu-Xiang Huang, Yu-Hao Cui +4
The optical characteristics of three types of black holes (BHs) surrounded by a thin accretion disk are discussed, namely the Schwarzschild BH, Bardeen BH, and Hayward BH. We calcu…
What does a regular star look like?
Yu Liang, Yuhao Cui, Kai Lin +5
Recently, astronomers discovered unusual Einstein cross images of the galaxy HerS-3, which feature a bright central spot. Motivated by studies of images produced by regular stars,…
Influence of accretion disk on the optical appearance of the Kazakov-Solodukhin black hole
Yu-Xiang Huang, Sen Guo, Yu-Hao Cui +2
The optical characteristics of the Kazakov-Solodukhin (KS) black hole (BH) surrounded by a thin disk is investigated. By utilizing the ray-tracing technique, we derive the the dire…
The feature of shadow images and observed luminosity of the Bardeen black hole surrounded by different accretions
Ke-Jian He, Sen Guo, Shuang-Cheng Tan +1
In this paper, by exploring the photon motion in the region near the Bardeen black hole, the shadow and observation properties of the black hole surrounded by various accretion mod…
Hayward black hole heat engine efficiency in anti-de Sitter space
Sen Guo, Ya-Ling Huang, Ke-Jian He +1
In this paper, we attempt to further study the heat engine efficiency for the regular black hole (BH) with an anti-de Sitter (AdS) background where the working material is the Hayw…
Shadow thermodynamics of AdS black hole in regular spacetime
Sen Guo, Guan-Ru Li, Guo-Ping Li
The dependence of the black hole (BH) shadow and thermodynamics may be structured in the regular spacetime. Taking the regular Bardeen-AdS BH as an example, the relationship betwee…
Cooling-heating phase transition and critical behavior of the charged accelerating AdS black hole
Sen Guo, Ya-Ling Huang, Guo-Ping Li
We study the cooling-heating phase transition of the charged accelerating anti-de Sitter black hole in extended phase space, and investigate the critical behavior of this black hol…
Optical Images of the Braneworld Black Hole Surrounded by an Optically Thin Accretion Disk
Wen-Hao Deng, Sen Guo, Qing-Quan Jiang +2
This work examines the observational signatures of rotating black holes with tidal charge in the Randall--Sundrum braneworld scenario. Combining an elliptic-integral-based analytic…
Observable characteristics of the charged black hole surrounded by thin disk accretion in Rastall gravity
Sen Guo, Guan-Ru Li, En-Wei Liang
The observable characteristics of the charged black hole (BH) surrounded by a thin disk accretion are investigated in the Rastall gravity. We found that the radii of the direct emi…
Joule-Thomson Expansion of Hayward-AdS black hole
Sen Guo, Jin Pu, Qing-Quan Jiang
In this paper, we study Joule-Thomson expansion for Hayward-AdS black hole in the extended phase space, and obtain a Joule-Thomson expansion formula for the black hole. We plot the…
Joule-Thomson expansion for the regular(Bardeen)-AdS black hole
Jin Pu, Sen Guo, Qing-Quan Jiang +1
In this paper, we attempt to study the Joule-Thomson expansion for the regular black hole in an anti-de Sitter background, and obtain the inversion temperature and curve for the Ba…
Optical appearance of the Schwarzschild black hole in the string cloud context
Sen Guo, Yu-Xiang Huang, Guo-Ping Li
The image of a black hole (BH) consists of direct and secondary images that depend on the observer position. We investigate the optical appearance of a Schwarzschild BH in the cont…
Polarization Signatures of Rotating Black Holes in Perfect Fluid Dark Matter Spacetimes
Yu-Xiang Huang, Sen Guo, En-Wei Liang +2
Motivated by horizon-scale polarization observations of M87^{*}, we investigate polarized emission from rotating black holes (BHs) immersed in a perfect fluid dark matter (PFDM) ba…
Influence of quantum correction on the Schwarzschild black hole polarized image
Sen Guo, Yu-Xiang Huang, Kuan Liu +2
Using a model of an accretion disk around a Schwarzschild black hole, the analytic estimates for image polarization were derived by Narayan . [Astrophys. J, 102, 912 (2021)…
Phase transition grade and microstructure of AdS black holes in massive gravity
Guan-Ru Li, Guo-Ping Li, Sen Guo
Considering that under the framework of the massive gravity theory, the interaction between the mass gravitons and Schwarzschild black hole (BH) could make it carry a scalar charge…
Optical images of the Kerr-Sen black hole and thin accretion disk
Pei Wang, Sen Guo, Li-Fang Li +4
This paper investigates the observable properties of a Kerr-Sen black hole surrounded by a thin accretion disk, focusing on the impact of the black hole's spin and charge on the im…
Image of the Kerr-Newman black hole surrounded by a thin accretion disk
Sen Guo, Yu-Xiang Huang, En-Wei Liang +3
The image of a Kerr-Newman (KN) black hole (BH) surrounded by a thin accretion disk is derived. By employing elliptic integrals and ray-tracing methods, we analyze photon trajector…
High-order QED correction impacts on phase transition of the Euler-Heisenberg AdS black hole
Guan-Ru Li, Sen Guo, En-Wei Liang
Two-phase transition branches of the Euler-Heisenberg (EH) anti-de Sitter (AdS) black hole (BH) were derived from its phase transition critical behavior by Magos et al. [Phys. Rev.…
Influences of accretion flow and dilaton charge on the images of Einstein-Maxwell-dilation black hole
Gang Chen, Sen Guo, Jia-Shuo Li +3
The characteristics and images of Einstein-Maxwell-Dilaton (EMD) black holes are examined in this paper, focusing on their effective potential, photon trajectories, and images with…
UniD: A Knowledge Graph-Enhanced RAG Framework for Drug-Disease Discovery and Reasoning
Qing Wang, Tianshi Liu, Minghao Zhou +5
Systematic characterization of drug-disease relationships is essential for drug discovery and repurposing, yet is hindered by the heterogeneity and rapid growth of biomedical liter…
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 gravitati…
Rastall gravity: accretion disk image in radiation fields context and visual transformations compared to Reissner-Nordstrom black holes
Yu-Xiang Huang, Sen Guo, Yu Liang +3
Our study investigates the astronomical implications of Rastall gravity, particularly its behavior amidst a radiation field compared to Reissner-Nordstrom (RN) black holes. Our res…
Ehrenfest's scheme and microstructure for regular-AdS black hole in the extended phase space
Sen Guo, En-Wei Liang
The regular (Bardeen)-AdS (BAdS) black hole (BH) in the extended phase space is taken as an example for investigating the BH phase transition grade from both macroscopic and micros…
Polarized Radiative Transfer of Kerr-Newman Black Hole
Xin Li, Sen Guo, Pei Wang +6
In this analysis, we investigate the polarization radiation imaging of Kerr-Newman black holes, with a particular focus on the impact of black hole charge on photon propagation and…
The shadows and photon rings of two minimal deformations of Schwarzschild black holes
Hong-Er Gong, Junlin Qin, Yusen Wang +4
This paper primarily investigates the optical characteristics of two minimal Schwarzschild black hole deformations, the Kazakov-Solodukhin and Ghosh-Kumar black holes, under differ…
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…
Shadow and Optical Imaging in Einstein-Maxwell-Dilaton Black Hole
Junlin Qin, Hong-Er Gong, Yusen Wang +4
This paper investigates photon motion in black hole of Einstein-Maxwell-dilaton theory, exploring black hole shadows and observational characteristics under various accretion model…
A Novel Jet Model for the Novikov-Thorne Disk and its Observable Impact
Sen Guo, Pei Wang, Ke-Jian He +3
Recent high-resolution observations have established a strong link between black hole jets and accretion disk structures, particularly in the 3.5 mm wavelength band [Nature. 616, 6…
Image of the time-dependent black hole
Yu Liang, Sen Guo, Kai Lin +3
The Event Horizon Telescope's 2024 observations report a shift in the position angle of the brightness asymmetry in M87*, revealing time variability in the black hole's image. In t…
Optical Appearances of Accreting Ellis-Bronnikov Wormholes Observed from Both Sides of Throats
Yu-Hao Cui, Kai Lin, Sen Guo +2
This study investigates the optical appearance of the Ellis-Bronnikov wormhole as viewed from both sides of its throat, under conditions of optically thick and thin accretion. By s…
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…
Superradiant Bose--Einstein condensates around Kerr black holes
Sen Guo, Lin Wen, Xiao-Xiong Zeng
Ultralight bosonic dark matter can accumulate around a rotating black hole, where superradiance amplifies the field until a macroscopic cloud forms. Whether such a cloud behaves as…
Optical appearance of numerical black hole solutions in higher derivative gravity
Yu-Hao Cui, Sen Guo, Yu-Xiang Huang +2
The optical appearance of the numerically black hole solutions within the higher derivative gravity illuminated by an accretion disk context is discussed. We obtain solutions for n…
Influence of Accretion Flow and Magnetic Charge on the Observed Shadows and Rings of the Hayward Black Hole
Sen Guo, Guan-Ru Li, En-Wei Liang
The feature of the observed shadows and rings of an astrophysical black hole (BH) may depend on its accretion flows and magnetic charge. We find that the shadow radii and critical…
Gravitational waveforms from periodic orbits around Gauss-Bonnet black holes
Yi-Han Huang, Sen Guo, Yu Liang +2
Extreme mass-ratio inspirals (EMRIs) constitute one of the most promising probes of strong field gravity for future space borne gravitational-wave observatories. As a representativ…
Comparison of thermodynamic behaviors of two regular-AdS black holes
Sen Guo, Ya-Ling Huang, En-Wei Liang
Considering the negative cosmological constant of an anti-de Sitter (AdS) background as a positive thermodynamic pressure in the extended phase space, we study the thermodynamic be…
Optical appearance of a thin-shell wormhole with a Hayward profile
Sen Guo, Guan-Ru Li, En-Wei Liang
The optical properties of a thin-shell wormhole (TSW) with a Hayward profile is investigated. Adopting the ray-tracing method, we demonstrate that the TSW's contralateral spacetime…
Image of a time-dependent rotating regular black hole
Sen Guo, En-Wei Liang, Yu-Xiang Huang +4
In this study, we develop a modeling framework based on spatio-temporal generalized random fields to simulate the time-evolving accretion flows and their associated imaging signatu…