Yazar "R-1759-2019" için listeleme
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Epicyclic oscillations of charged particles in stationary solutions immersed in a magnetic field with application to the Kerr-Newman black hole
Azreg-Ainou, Mustapha (2019)We consider a stationary metric immersed in a uniform magnetic field and determine the general expressions for the epicyclic frequencies of charged particles. Applications to the Kerr-Newman black hole are reached of ... -
Rotating normal and phantom Einstein-Maxwell-dilaton black holes: Geodesic analysis
Azreg-Ninou, Mustapha; Haroon, Sumarna; Jamil, Mubasher; Rizwan, Muhammed (2019)Depending on five parameters, rotating counterparts of Einstein-Maxwell-dilaton black holes are derived. We discuss their physical and geometric properties and investigate their null and timelike geodesics including circular ... -
Smoothed one-core and core-multi-shell regular black holes
Azreg-Ainou, Mustapha (2018)We discuss the generic properties of a general, smoothly varying, spherically symmetric mass distribution D(r,theta), with no cosmological term (. is a length scale parameter). Observing these constraints, we show that ... -
Strong gravitational lensing by a charged Kiselev black hole
Azreg, Ainou Mustapha; Bahamonde, Sebastian; Jamil, Mubasher (2017)We study the gravitational lensing scenario where the lens is a spherically symmetric charged black hole (BH) surrounded by quintessence matter. The null geodesic equations in the curved background of the black hole are ...