scholarly journals Strong gravitational lensing for photon coupled to Weyl tensor in Kiselev black hole

2020 ◽  
Vol 44 (9) ◽  
pp. 095105
Author(s):  
G. Abbas ◽  
Asif Mahmood ◽  
M. Zubair
Keyword(s):  
Black Hole ◽  
Gravitational Lensing ◽  
Weyl Tensor ◽  
Strong Gravitational Lensing

scholarly journals Strong gravitational lensing by a charged Kiselev black hole

2017 ◽  
Vol 77 (6) ◽  
Author(s):  
Mustapha Azreg-Aïnou ◽  
Sebastian Bahamonde ◽  
Mubasher Jamil
Keyword(s):  
Black Hole ◽  
Gravitational Lensing ◽  
Strong Gravitational Lensing

scholarly journals Time delay of photons coupled to Weyl tensor in a regular phantom black hole

2020 ◽  
Vol 80 (7) ◽  
Author(s):  
Xu Lu ◽  
Yi Xie
Keyword(s):  
Black Hole ◽  
Time Delay ◽  
Gravitational Lensing ◽  
Weyl Tensor ◽  
Maxwell Theory ◽  
Time Signals

Abstract Time delay of the photons coupled to the Weyl tensor in a regular phantom black hole is investigated in both weak and strong deflection gravitational lensing. We find that the time delay in the weak deflection lensing strongly depends on the phantom hair while the delay in the strong deflection lensing is significantly affected by the hair and the strength of the coupling. We suggest that it is necessary to measure these two kind of time signals for fully understanding and distinguishing such an interaction beyond the standard Einstein–Maxwell theory.

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