Magnetized tori in the background of a deformed compact object

TL;DR

This paper investigates the effects of quadrupole moments on relativistic magnetized thick accretion discs around deformed compact objects using the q-metric, providing insights into their properties and potential for numerical simulations.

Contribution

It introduces a new model of magnetized thick discs around deformed objects with quadrupole moments using the q-metric, extending previous models to include these deformations.

Findings

Disc properties depend on quadrupole and angular momentum parameters.

The model can serve as initial data for numerical simulations.

Properties of equilibrium sequences are characterized in the deformed spacetime.

Abstract

This paper studied the relativistic accretion thick disc model raised by a deformed compact object that slightly deviated from spherical up to the quadrupole moment by utilising $\rm q$-metric. This metric is the simplest asymptotically flat solution of Einstein's equation with quadrupole moment. This work aims to study the effects of quadrupole moments in combination with the parameters of the thick magnetised disc model via studying the properties of these equilibrium sequences of magnetised, non-self-gravitating discs in this space-time. We employed different angular momentum distributions and discussed the procedure of building this toroidal disc model based on a combination of approaches previously considered in the literature. We have shown the properties of this relativistic accretion disc model and its dependence on the initial parameters. Besides, this theoretical model can be served as the initial data for numerical simulations.