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Bounding greybody and deflection angle of improved Schwarzschild black hole
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In this article , the authors derived the optical curvature from the optical metric and calculated the deflection angle in weak field limits by using the Gauss-Bonnet theorem, and also studied the effect of the plasma medium on the weak gravitational lensing.About:
This article is published in New Astronomy.The article was published on 2022-10-01. It has received 3 citations till now. The article focuses on the topics: Schwarzschild radius & Gravitational lens.read more
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Shadow, lensing, quasinormal modes, greybody bounds and neutrino propagation by dyonic ModMax black holes
TL;DR: In this article , the effect of the ModMax parameters on the shadow cast, weak field gravitational lensing, and neutrino propagation in the vicinity of a dyonic ModMax black hole was investigated.
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Weak lensing, Hawking radiation and greybody factor bound by a charged black holes with non-linear electrodynamics corrections
TL;DR: In this article , the authors studied the effect of non-linear electrodynamics (NLED), plasma and dark matter on the shadow radius of a black hole in the weak field limits.
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Geodesic motions near an improved Schwarzschild black hole
TL;DR: In this article , the geodesics of timelike and null-like particles near an improved Schwarzschild black hole were studied with the help of the dynamical systems approach.
References
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Journal ArticleDOI
Particle Creation by Black Holes
TL;DR: In this article, it is shown that quantum mechanical effects cause black holes to create and emit particles as if they were hot bodies with temperature, which leads to a slow decrease in the mass of the black hole and to its eventual disappearance.
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Weak Gravitational Lensing
TL;DR: In this article, the authors present the formalism of weak gravitational lensing and light propagation in arbitrary space-times, and discuss how weak-lensing effects can be measured.
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Black Holes and Thermodynamics
TL;DR: In this article, it was shown that the entropy of a black hole is a measure of the amount of information about the initial state which was lost in the formation of the black hole.
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Gravitational microlensing by double stars and planetary systems
Shunde Mao,Bohdan Paczynski +1 more
TL;DR: In this paper, it is estimated that about 10 percent of all lensing episodes of the Galactic bulge stars will strongly display the binary nature of the lens, even if the companion is a planet.
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Gravitational lensing in the strong field limit
TL;DR: In this paper, the authors provide an analytic method to discriminate among different types of black holes on the ground of their strong field gravitational lensing properties, and apply this general formalism to Schwarzschild, Reissner-Nordstrom and Janis-Newman-Winicour black holes.