일반화된 헤이워드 시공간의 그림자: 진공 및 플라즈마 환경에서
일반화된 헤이워드 메트릭에서 파생된 다양한 유형의 시공간(웜홀, 규칙/특이 블랙홀)의 그림자를 분석하고, 진공 및 플라즈마 환경에서 그림자의 차이점을 조사하여 규칙 시공간과 특이 블랙홀을 구별할 수 있는 가능성을 탐구합니다.
Shadows of Generalized Hayward Spacetimes: Exploring the Impact of Metric Parameters and Plasma on Black Hole and Wormhole Shadows
This study investigates how the shadows of black holes and wormholes, as predicted by the generalized Hayward metric, are affected by variations in metric parameters and the presence of plasma.
Shadow Images of Ghosh-Kumar Rotating Black Holes: Exploring the Impact of Spherical Light Sources and Thin Accretion Disks
This research paper investigates the visual characteristics of shadows cast by Ghosh-Kumar rotating black holes, revealing how these shadows are affected by the black hole's spin, magnetic charge, and the presence of surrounding light sources like spherical emissions and thin accretion disks.
유효 양자 중력에서 회전하는 블랙홀의 그림자: 양자 매개변수가 그림자 크기와 모양에 미치는 영향
이 논문은 유효 양자 중력에서 회전하는 블랙홀의 그림자에 대한 연구로, 수정된 Newman-Janis 알고리즘을 사용하여 생성된 두 가지 새로운 회전 블랙홀 모델을 분석하고 양자 매개변수가 그림자의 크기와 모양에 미치는 영향을 조사합니다.
Investigating the Shadows of Rotating Black Holes in Effective Quantum Gravity: Exploring the Impact of Quantum Corrections on Black Hole Shadows
This research paper investigates how quantum gravity corrections, specifically a quantum parameter (ζ), affect the shadows cast by rotating black holes, revealing that these corrections primarily influence the shadow size in non-extreme cases and deform the shadow shape in near-extreme cases.
QED Effects on the Shadows of Rotating, Magnetically Charged Black Holes
This research paper investigates how quantum electrodynamics (QED) affects the appearance of shadows cast by rotating black holes possessing a magnetic charge, demonstrating that QED effects, contrary to some prior work, lead to an expansion of these shadows.
Shadow Analysis of a Rotating Black Hole with Weakly Coupled Global Monopole Charge: Implications for Observational Constraints
The presence of a weakly coupled global monopole charge in a rotating black hole spacetime introduces distinct features in its shadow, causal structure, and ergoregions, potentially enabling observational constraints on nonminimal gravity theories using data from telescopes like the Event Horizon Telescope.
Shadow of the Quantum Improved Regular Kerr Black Hole and Parameter Constraints from EHT Observations
This article investigates the observational characteristics of the Quantum Improved Regular Kerr (QIRK) black hole, a theoretical model that resolves the singularity and causality issues of classical black holes through quantum corrections. The study focuses on the black hole's shadow, a distinctive feature determined by the trajectories of photons in its vicinity, and uses observational data from the Event Horizon Telescope (EHT) to constrain the model's parameters.
Critique of "Non-local Gravitational Corrections in Black Hole Shadow Images" by Alexeyev et al.
The paper by Alexeyev et al. claiming to find differences in black hole shadows due to "quantum" corrections is flawed, as it fails to rigorously prove its key assumptions and ignores more significant astrophysical factors.
Hypershadows of Five-Dimensional Black Holes: Analyzing the Cohomogeneity-One d=5 Myers-Perry Solution
Five-dimensional black holes, when viewed by hypothetical higher-dimensional observers, would cast three-dimensional shadows, or "hypershadows," with distinct properties influenced by the black hole's spin.
