On the Eccentricity Behaviour of Radiating Slowly Rotating Bodies

TL;DR

This paper investigates how the eccentricity of slowly rotating radiating bodies evolves, revealing that its behavior is highly dependent on the specific model used, even for very compact objects.

Contribution

It demonstrates that at first order in angular velocity, eccentricity evolution varies significantly across different models of radiating bodies.

Findings

Eccentricity evolution is model-dependent.

Behavior varies even for highly compact objects.

First-order angular velocity effects are significant.

Abstract

We study different models of radiating slowly rotating bodies up to the first order in the angular velocity. It is shown that up to this order the evolution of the eccentricity is highly model-dependent even for very compact objects.