Gravitational lensing around Kehagias-Sfetsos compact objects surrounded by plasma

Abstract

We study the optical properties of the Kehagias-Sfetsos (KS) compact objects, characterized by the "Hořava" parameter ${\omega }_{{}_{KS}}$, in the presence of plasma, considering its homogeneous or power-law density distribution. The strong effects of both "Hořava" parameter ${\omega }_{{}_{KS}}$ and plasma on the shadow cast by the KS compact objects are demonstrated. Using the weak field approximation, we investigate the gravitational lensing effect. Strong dependence of the deflection angle of the light on both the "Hořava" and plasma parameter is explicitly shown. The magnification of image source due to the weak gravitational lensing is given for both the homogeneous and inhomogeneous plasma.

15 pages, 10 figures

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Cited by in corpus (10)

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• Motion of Particles and Gravitational Lensing Around (2+1)-dimensional BTZ black holes in Gauss-Bonnet Gravity
• Geodesic motion around hairy black holes
• Shadows and photon rings of a spherically accreting Kehagias-Sfetsos black hole
• Weak Deflection Angle and Greybody Bound of Magnetized Regular Black Hole
• On new regular charged black hole solutions: Limiting Curvature Condition, Quasinormal modes and Shadows
• Geodesic analysis and black hole shadows on a general non--extremal rotating black hole in five--dimensional gauged supergravity
• Weak gravitational lensing by an ESTGB black hole in the presence of a plasma
• Strong gravitational lensing around Kehagias-Sfetsos compact objects surrounded by plasma