arXiv subjects

Nülifer Özdemir

Publications and source records attributed to Nülifer Özdemir.

3 recordsLinked to original sources

arXiv2019

The equatorial motion of the charged test particles in Kerr-Newman-Taub-NUT spacetime

In this work, we perform a detailed analysis of the equatorial motion of the charged test particles in Kerr-Newman-Taub-NUT spacetime. By working out the orbit equation in the radial direction, we examine possible orbit types. We investigate the conditions for existence of bound orbits in causality-preserving region as well as the conditions for existence of circular orbits for charged and uncharged particles. We also study the effect of NUT parameter on Newtonian orbits. Finally, we give exact analytical solutions of equations of equatorial motion for a charged test particle.

gr-qc↗

arXiv2016

Motion of the charged test particles in Kerr-Newman-Taub-NUT spacetime and analytical solutions

In this work, we study the motion of charged test particles in Kerr-Newman-Taub-NUT spacetime. We analyze the angular and the radial parts of the orbit equations and examine the possible orbit types. We also investigate the spherical orbits and their stabilities. Furthermore, we obtain the analytical solutions of the equations of motion and express them in terms of Jacobian and Weierstrass elliptic functions. Finally, we discuss the observables of the bound motion and calculate the perihelion shift and Lense-Thirring effect for three dimensional bound orbits.

gr-qc↗

arXiv2016

Almost Contact Metric Structures Induced by $G_2$ Structures

We study almost contact metric structures induced by 2-fold vector cross products on manifolds with $G_2$ structures. We get some results on possible classes of almost contact metric structures. Finally we give examples.

math.DG↗