scholarly journals Light deflection by squashed Kaluza-Klein black holes in a plasma medium

2021 ◽  
Vol 103 (4) ◽  
Author(s):  
Ken Matsuno
Keyword(s):  
Black Holes ◽  
Light Deflection ◽  
Plasma Medium ◽  
Kaluza Klein

scholarly journals Testing Horndeski Theory Using Light Deflection by Asymptotically Flat Black Holes

2019 ◽  
Author(s):  
Wajiha Javed ◽  
Jameela Abbas ◽  
Yashmitha Kumaran ◽  
Ali Övgün
Keyword(s):  
Black Holes ◽  
Gravitational Lensing ◽  
Deflection Angle ◽  
Weak Field ◽  
Light Deflection ◽  
Plasma Medium ◽  
Asymptotically Flat ◽  
Optical Geometry ◽  
The Deflection Angle ◽  
Bonnet Theorem

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 applying 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 as well as non-plasma medium.

scholarly journals Charged rotating Kaluza-Klein black holes in dilaton gravity

2010 ◽  
Vol 81 (4) ◽  
Author(s):  
Masoud Allahverdizadeh ◽  
Ken Matsuno ◽  
Ahmad Sheykhi
Keyword(s):  
Black Holes ◽  
Dilaton Gravity ◽  
Kaluza Klein

scholarly journals Weak Deflection Angle of some Classes of non-linear Electrodynamics Black Holes via Gauss-Bonnet Theorem

2020 ◽  
Author(s):  
Hasan El Moumni ◽  
Karima Masmar ◽  
Ali Övgün
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Gravitational Lensing ◽  
Deflection Angle ◽  
Weak Field ◽  
Leading Order ◽  
Plasma Medium ◽  
Non Linear ◽  
The Deflection Angle ◽  
Bonnet Theorem

In this paper, we study the gravitational lensing by some black hole classes within the non-linear electrodynamics in weak field limits. First, we calculate an optical geometry of the non-linear electrodynamics black hole then we use the Gauss-Bonnet theorem for finding deflection angle in weak field limits. The effect of non-linear electrodynamics on the deflection angle in leading order terms is studied. Furthermore, we discuss the effects of the plasma medium on the weak deflection angle.

scholarly journals Rotating Kaluza-Klein multi-black holes with Gödel parameter

2008 ◽  
Vol 78 (6) ◽  
Author(s):  
Ken Matsuno ◽  
Hideki Ishihara ◽  
Toshiharu Nakagawa ◽  
Shinya Tomizawa
Keyword(s):  
Black Holes ◽  
Kaluza Klein

scholarly journals The rotating dyonic black holes of Kaluza-Klein theory

1995 ◽  
Vol 454 (1-2) ◽  
pp. 379-401 ◽  
Author(s):  
Dean Rasheed
Keyword(s):  
Black Holes ◽  
Klein Theory ◽  
Kaluza Klein

MULTIDIMENSIONAL COSMOLOGY AND FUNDAMENTAL CONSTANTS

2009 ◽  
Vol 24 (08n09) ◽  
pp. 1473-1480 ◽  
Author(s):  
V. N. MELNIKOV
Keyword(s):  
Black Holes ◽  
Fundamental Constants ◽  
Fundamental Physical Constants ◽  
Cosmological Singularity ◽  
Brane Worlds ◽  
Multidimensional Cosmology ◽  
Multidimensional Models ◽  
Different Sources ◽  
Fundamental Physical ◽  
Kaluza Klein

Studies of multidimensional models with different sources (models with S -branes, thin and thick brane worlds, Kaluza-Klein type models in curvature-nonlinear multidimensional gravity etc.) and their application to the cosmological constant, cosmological singularity, hierarchy and coincidence problems are presented. Their observational predictions: variations of fundamental physical constants, new types of black holes and wormholes are discussed.

Black holes in Kaluza-Klein theory

1986 ◽  
Vol 167 (1) ◽  
pp. 201-223 ◽  
Author(s):  
G.W. Gibbons ◽  
D.L. Wiltshire
Keyword(s):  
Black Holes ◽  
Klein Theory ◽  
Kaluza Klein
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