Optical Signatures of q-deformed Solution in Einstein-Maxwell-dilaton Gravity
Research Paper#General Relativity, Black Hole Physics, Astrophysics🔬 Research|Analyzed: Jan 3, 2026 18:40•
Published: Dec 29, 2025 15:45
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This paper investigates the optical properties of a spherically symmetric object in Einstein-Maxwell-Dilaton (EMD) theory. It analyzes null geodesics, deflection angles, photon rings, and accretion disk images, exploring the influence of dilaton coupling, flux, and magnetic charge. The study aims to understand how these parameters affect the object's observable characteristics.
Key Takeaways
- •Investigates the optical properties of a spherically symmetric object in EMD theory.
- •Analyzes null geodesics, deflection angles, photon rings, and accretion disk images.
- •Explores the influence of dilaton coupling, flux, and magnetic charge on observable characteristics.
- •Uses the Gralla-Lupsasca-Marrone (GLM) model to model intensity profile of optically thin accretion disk.
Reference / Citation
View Original"The paper derives geodesic equations, analyzes the radial photon orbital equation, and explores the relationship between photon ring width and the Lyapunov exponent."