# Exploring universality in neutron star mergers

## TL;DR

This paper investigates the potential universal relation between pre-merger tidal deformability and post-merger oscillations in neutron star mergers, analyzing the physics and effects influencing this correlation.

## Contribution

It provides a theoretical analysis supporting the existence of a universal relation between pre- and post-merger neutron star properties, considering thermal and rotational effects.

## Key findings

- The proposed relation is physically plausible.
- Thermal effects influence the correlation.
- Rotational effects are significant in the relation.

## Abstract

We explore the correlation between the pre-merger tidal deformability and the post-merger remnant oscillations seen in numerical simulation of neutron star binaries, with the aim of understanding to what extent the physics support the existence of such a relation. We consider the impact of thermal and rotational effects and argue that the proposed relation does, indeed, make sense and provide simple arguments that help explain the result.