activity
20242026
collaborators

7 papers

gr-qc2026

Epicyclic motion of charged particles around a weakly magnetized Kiselev black hole

Marina-Aura Dariescu, Vitalie Lungu

We investigate the motion of charged particles evolving around a magnetized Kiselev black hole, in the weak magnetic field approximation. The effective potential allows us to study…

gr-qc2026

Particle dynamics around an electrically charged Kiselev black hole embedded in quintessence

Vitalie Lungu, Marina-Aura Dariescu, Cristian Stelea

We introduce and study a new solution describing a static, spherically symmetric and electrically charged black hole embedded in a charged quintessence fluid, which corresponds to…

gr-qc2025

Accelerating charged and rotating black holes in scalar multipolar universes

Cristian Stelea, Marina-Aura Dariescu, Vitalie Lungu

Recently, Cardoso and Natario constructed an exact solution of Einstein-scalar field equations that describes a scalar counterpart of the Schwarzschild-Melvin Universe. In fact, th…

gr-qc2025

Null geodesics around a magnetized Kiselev black hole

Vitalie Lungu

A new magnetically charged Kiselev black hole solution is used to study the null geodesics in this spacetime. We derive the equations of motion for the null geodesics and analyze t…

gr-qc2025

Charged Particles Orbiting a Magnetized Black Hole Immersed in Quintessential Matter

Vitalie Lungu, Marina-Aura Dariescu, Cristian Stelea

A new exact magnetized solution describing a Kiselev black hole immersed in a magnetic field is used for studying the dynamics of charged particles. Different types of trajectories…

hep-th2024

Charged particles moving around a spherically symmetric dilatonic black hole

Vitalie Lungu, Marina-Aura Dariescu, Ciprian Dariescu +1

For the static spherically symmetric dilatonic black hole described by the Gibbons-Maeda-Garfinkle-Horowitz-Strominger geometry, we analyze the timelike trajectories for electrical…