On the influence of rings on orbital velocities

TL;DR

This paper investigates how rings within galaxies can influence the orbital velocities of stars, showing that the presence and position of rings can significantly alter velocity profiles.

Contribution

It introduces models demonstrating the impact of rings on orbital velocities, highlighting the dependence on star position within the rings.

Findings

Orbital velocities vary with star position in the rings.

Potential and field strength curves are affected by ring presence.

Rings can cause deviations from traditional velocity profiles.

Abstract

We analyze the possible effect of rings on orbital velocities in galaxies. The superposition of the central force with the gravitational forces induced by the rings opens up various possibilities of the course of orbital velocities. The orbital velocity depends on the position of the star in the ring. We illustrate this dependence on several models, where we show the course of potential curves and the curves of field strength.