3 papers
gr-qc2026
Epicyclic motion and accretion disk around a charged black hole in Einstein-ModMax theory with a quintessence field
Hamza Rehman, Sanjar Shaymatov, Tao Zhu
We investigate the epicyclic motion of charged test particles and the associated quasi-periodic oscillations (QPOs) around a weakly magnetized black hole surrounded by quintessence…
astro-ph.HE2025
Exploring the accelerating black holes from the observations of quasi-periodic oscillations in X-ray binaries
Hamza Rehman, Saddam Hussain, G. Abbas +1
Black holes in dense astrophysical environments, such as globular clusters or in the vicinity of other massive objects, may possess accelerations. Such acceleration would modulate…
astro-ph.HE2025
Constraints on extra charges in dyonic Kerr-Newman-Kasuya-Taub-NUT black hole from the observations of quasi-periodic oscillations
Hamza Rehman, Saddam Hussain, Ghulam Abbas +1
This paper investigates the influence of the dimensionless electric charge (), magnetic charge (), and Taub-NUT parameter () of a dyonic Kerr-Newman-Kasuya-Taub-NUT…