260 citations · 494 across the 9 of their papers we have counts for
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Rotating charged black hole in Einstein-Gauss-Bonnet gravity: Photon motion and its shadow
Uma Papnoi, Farruh Atamurotov
We construct a charged rotating black hole in 4D Einstein-Gauss-Bonnet (EGB) gravity starting from charged black hole in 4D EGB gravity using complex coordinate transformations sug…
Optical and Thermodynamic Properties of a Rotating Dyonic Black Hole Spacetime in gauged supergravity
Prateek Sharma, Hemwati Nandan, Uma Papnoi +1
The null geodesics and the distance of closest approach for photon around a rotating dyonic black hole in gauged supergravity is studied. The phenomenon o…
Shadow and deflection angle of charged rotating black hole surrounded by perfect fluid dark matter
Farruh Atamurotov, Uma Papnoi, Kimet Jusufi
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 t…
Strong lensing and Observables around 5D Myers-Perry black hole spacetime
Ravi Shankar Kuniyal, Hemwati Nandan, Uma Papnoi +2
We study the motion of massless test particles in a five dimensional (5D) Myers-Perry black hole spacetime with two spin parameters. The behaviour of the effective potential in vie…
Thermodynamic structure of field equations near apparent horizon for radiating black holes
Uma Papnoi, Megan Govender, Sushant G Ghosh
We study the intriguing analogy between gravitational dynamics of the horizon and thermodynamics for the case of nonstationary radiating spherically symmetric black holes both in f…
Clouds of strings in third-order Lovelock gravity
Sushant G. Ghosh, Uma Papnoi, Sunil D. Maharaj
Lovelock theory is a natural extension of the Einstein theory of general relativity to higher dimensions in which the first and second orders correspond, respectively, to general r…
Shadow of five-dimensional rotating Myers-Perry black hole
Uma Papnoi, Farruh Atamurotov, Sushant G. Ghosh +1
A black hole casts a shadow as an optical appearance because of its strong gravitational field. We study the shadow cast by the five-dimensional Myers-Perry black hole with equal r…
Spinning Higher Dimensional Einstein-Yang-Mills black holes
Sushant G Ghosh, Uma Papnoi
We construct a Kerr-Newman-like spacetimes starting from higher dimensional (HD) Einstein-Yang-Mills black holes via complex transformations suggested by Newman-Janis. The new metr…
Radiating Kerr-Newman black hole in gravity
Sushant G. Ghosh, Sunil D. Maharaj, Uma Papnoi
We derive an exact radiating Kerr-Newman like black hole solution, with constant curvature imposed, to {\it metric} gravity via complex transformations suggested by…