59 citations · 138 across the 5 of their papers we have counts for
5 papers
Structure-preserving numerical simulations of test particle dynamics around slowly rotating neutron stars within Hartle-Thorne approach
Misbah Shahzadi, Martin Kolos, Rabia Saleem +2
In this paper, we explore the chaotic signatures of the geodesic dynamics for particles moving in the slowly rotating Hartle-Thorne spacetime; an approximate solution of vacuum Ein…
Control of Parasitism in Variational Integrators for Degenerate Lagrangian Systems
Farrukh Shehzad, Yousaf Habib, Michael Kraus +1
This paper deals with the control of parasitism in variational integrators for degenerate Lagrangian systems by writing them as general linear methods. This enables us to calculate…
Testing alternative theories of gravity by fitting the hot-spot data of Sgr A*
Misbah Shahzadi, Martin Kološ, Zdeněk Stuchlík +1
We are fitting dynamics of electrically neutral hot-spot orbiting around Sgr A* source in Galactic center, represented by various modifications of the standard Kerr black hole (BH)…
Epicyclic oscillations in spinning particle motion around Kerr black hole applied in models fitting the quasi-periodic oscillations observed in quasars and microquasars
Misbah Shahzadi, Martin Kološ, Zdeněk Stuchlík +1
The study of the quasi-periodic oscillations (QPOs) of X-ray flux observed in the stellar-mass black hole (BH) binaries or quasars can provide a powerful tool for testing the pheno…
First Integrals of Dynamical Systems And Their Numerical Preservation
W. Irshad, Y. Habib, M. U. Farooq
We calculate Noether like operators and first integrals of scalar equation y'' = -k^2 y using complex Lie symmetry method, by taking values of k and y to be real as well as complex…