221 citations · 583 across the 7 of their papers we have counts for
6 papers · 1 filter
Periodic orbits and their gravitational wave radiations in black hole with dark matter halo
Sumarna Haroon, Tao Zhu
This study investigates the gravitational dynamics of a spherically symmetric black hole embedded within a dark matter halo, focusing on the impact of the dark matter halo on time-…
Thermodynamics of Gauss-Bonnet-de Sitter Black Holes
Sumarna Haroon, Robie A. Hennigar, Robert B. Mann +1
We investigate the thermodynamics of Gauss-Bonnet black holes in asymptotically de Sitter spacetimes embedded in an isothermal cavity, via a Euclidean action approach. We consider…
Shadow Images of a Rotating Dyonic Black Hole with a Global Monopole Surrounded by Perfect Fluid
Sumarna Haroon, Kimet Jusufi, Mubasher Jamil
In this paper we revisit and extend the prior work of Filho and Bezerra [Phys. Rev D, 64, 084009 (2001)] to rotating dyonic global monopoles in presence of a perfect fluid. We then…
Shadow and Deflection Angle of Rotating Black Holes in Perfect Fluid Dark Matter with a Cosmological Constant
Sumarna Haroon, Mubasher Jamil, Kimet Jusufi +2
The presence of dark matter around a black hole remarkably affects its spacetime. We consider the effects of dark matter on the shadow of a new solution to the Einstein equations t…
Rotating normal and phantom Einstein--Maxwell--dilaton black holes: Geodesic analysis
Mustapha Azreg-Aïnou, Sumarna Haroon, Mubasher Jamil +1
Depending on five parameters, rotating counterparts of Einstein--Maxwell--dilaton black holes are derived. We discuss their physical and geometric properties and investigate their…
The Effects of Running Gravitational Coupling On Rotating Black Holes
Sumarna Haroon, Mubasher Jamil, Kai Lin +3
In this work we investigate the consequences of running gravitational coupling on the properties of rotating black holes. Apart from the changes induced in the space-time structure…