Chaotic orbital dynamics of pulsating objects in dark matter halos

TL;DR

This paper explores how stellar pulsations might induce chaotic orbital behavior in stars within dark matter halos, finding that such effects are generally too subtle to observe in realistic scenarios.

Contribution

It is the first study to analyze the impact of stellar pulsations on orbital chaos in the context of dark matter halos.

Findings

Chaotic behavior can occur under certain parameter ranges.

Effects are negligible for typical astrophysical parameters.

Pulsations have limited impact on observable stellar dynamics.

Abstract

Stellar pulsation is nowadays a widely understood subject. However, there has been no research about the effects of pulsations on the star's orbital dynamics throughout the galaxy. We investigate whether these oscillations can cause chaotic behaviour in the stellar orbit if it is immersed in background dark matter halos. We show that for a certain range of parameters of the pulsating object these effects are present in a general background matter field. However, for the typical range of parameters of realistic astrophysical scenarios, these effects are too small to be detectable.