Gravitational lensing by a Horndeski black hole

Badía, Javier; Eiroa, Ernesto F.

doi:10.1140/epjc/s10052-017-5376-6

Cited by 33 publications

(23 citation statements)

References 67 publications

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“…The observations that follow from the Horndeski theory and its mathematical implications include determining observables such as angular positions, separation, magnification and fluxes: a case study of astrophysical applications for Sagittarius A* and M87 can be found in [11]. Additionally, distinct researches include linear Horndeski theories to study dark energy and gravitational waves [83], and Horndeski gravity to study dark matter [84].…”

Section: Discussionmentioning

confidence: 99%

Weak deflection angle by asymptotically flat black holes in Horndeski theory using Gauss–Bonnet theorem

Javed

Abbas

Kumaran

et al. 2020

Int. J. Geom. Methods Mod. Phys.

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The principal objective of this project is to investigate the gravitational lensing by asymptotically flat black holes in the framework of Horndeski theory in weak field limits. To achieve this objective, we utilize the Gauss–Bonnet theorem to the optical geometry of asymptotically flat black holes and apply the Gibbons–Werner technique to achieve the deflection angle of photons in weak field limits. Subsequently, we manifest the influence of plasma medium on deflection of photons by asymptotically flat black holes in the context of Horndeski theory. We also examine the graphical impact of deflection angle on asymptotically flat black holes in the background of Horndeski theory in plasma medium as well as non-plasma medium.

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Section: Discussionmentioning

confidence: 99%

Weak deflection angle by asymptotically flat black holes in Horndeski theory using Gauss–Bonnet theorem

Javed

Abbas

Kumaran

et al. 2020

Int. J. Geom. Methods Mod. Phys.

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show abstract

“…Note that the solution (16) with α = q = 0 reduces to deflection angle of Schwarzcshild BH in the leading order terms. Moreover, it can be seen that the α parameter increases the deflection angle.…”

Section: Deflection Angle Of Einstein-non-linear Maxwell-yukawa mentioning

confidence: 99%

Weak Gravitational Lensing by Einstein-Non-Linear-Maxwell-Yukawa Black Hole

Javed¹,

Khadim²,

Овгун³

2020

Preprint

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In this article, we analyze the weak gravitational lensing in the context of Einstein-non-linear Maxwell-Yukawa black hole. To this desire, we derive the deflection angle of light by Einstein-non-linear Maxwell-Yukawa black hole using the Gibbons and Werner method. For this purpose, we obtain the Gaussian optical curvature and implement the Gauss-Bonnet theorem to investigate the deflection angle of Einstein-non-linear Maxwell-Yukawa black hole. Moreover, we derive the deflection angle of light in the presence of plasma medium. We also analyze the graphical behavior of deflection angle by Einstein-non-linear Maxwell-Yukawa black hole in the presence of plasma as well as non-plasma medium.

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“…The field equations resulting from Eq. (9) admit a static, spherically symmetric, and asymptotically flat solution of the form [95]…”

Section: Evaluation Of Photon Lensing For Horndeski Black Holesmentioning

confidence: 99%

Weak Gravitational Lensing by Horndeski Theory Using the Gauss-Bonnet Theorem

Javed¹,

Abbas²,

Kumaran³

et al. 2020

Preprint

View full text Add to dashboard Cite

The main goal of this paper is to study the weak gravitational lensing by Horndeski black hole in weak field approximation. In order to do so, we exploit the Gibbons-Werner method to the optical geometry of Horndeski black hole and implement the Gauss-Bonnet theorem to accomplish the deflection angle of light in weak field region. Furthermore, we have endeavored to extend the scale of our work by comprising the impact of plasma medium on the deflection angle as properly. Later, the graphical influence of the deflection angle of photon on Horndeski black hole in plasma and non-plasma medium is examined.

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Gravitational lensing by a Horndeski black hole

Cited by 33 publications

References 67 publications

Weak deflection angle by asymptotically flat black holes in Horndeski theory using Gauss–Bonnet theorem

Weak deflection angle by asymptotically flat black holes in Horndeski theory using Gauss–Bonnet theorem

Weak Gravitational Lensing by Einstein-Non-Linear-Maxwell-Yukawa Black Hole

Weak Gravitational Lensing by Horndeski Theory Using the Gauss-Bonnet Theorem

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