scholarly journals Shadow cast by a rotating black hole with anisotropic matter

2021 ◽  
Vol 103 (6) ◽  
Author(s):  
Bum-Hoon Lee ◽  
Wonwoo Lee ◽  
Yun Soo Myung
Keyword(s):  
Black Hole ◽  
Rotating Black Hole ◽  
Anisotropic Matter ◽  
Shadow Cast

scholarly journals Rotating black hole with an anisotropic matter field as a particle accelerator

2021 ◽  
Author(s):  
Ahmed Rizwan C. L ◽  
A. Naveena Kumara ◽  
Kartheek Hegde ◽  
Md Sabir Sabir Ali ◽  
Ajith K M
Keyword(s):  
Black Hole ◽  
Matter Field ◽  
Particle Accelerator ◽  
Rotating Black Hole ◽  
Anisotropic Matter

scholarly journals Shadow and deflection angle of charged rotating black hole surrounded by perfect fluid dark matter

2021 ◽  
Author(s):  
Farruh Atamurotov ◽  
Uma Papnoi ◽  
Kimet Jusufi
Keyword(s):  
Black Hole ◽  
Dark Matter ◽  
Perfect Fluid ◽  
Deflection Angle ◽  
Graphical Representation ◽  
Null Geodesic ◽  
Rotation Parameter ◽  
Rotational Parameter ◽  
Rotating Black Hole ◽  
Shadow Cast

Abstract We analysed the shadow cast by charged rotating black hole (BH) in presence of perfect fluid dark matter (PFDM). We studied the null geodesic equations and obtained the shadow of the charged rotating BH to see the effects of PFDM parameter $\gamma$, charge $Q$ and rotation parameter $a$, and it is noticed that the size as well as the shape of BH shadow is affected due to PFDM parameter, charge and rotation parameter. Thus, it is seen that the presence of dark matter around a BH affects its spacetime. We also investigated the influence of all the parameters (PFDM parameter $\gamma$, BHs charge $Q$ and rotational parameter $a$) on effective potential, energy emission by graphical representation, and compare all the results with the non rotating case in usual general relativity. To this end, we have also explored the effect of PFDM on the deflection angle and the size of Einstein rings.

scholarly journals Dynamics of the nonrotating and rotating black hole scalarization

2021 ◽  
Vol 103 (6) ◽  
Author(s):  
Daniela D. Doneva ◽  
Stoytcho S. Yazadjiev
Keyword(s):  
Black Hole ◽  
Rotating Black Hole
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