# Innermost stable circular orbits of neutron stars in dilatonic-Einstein-Gauss-Bonnet theory

## TL;DR

This paper investigates the properties of innermost stable circular orbits around rapidly rotating neutron stars within dilatonic Einstein-Gauss-Bonnet theory, extending universal relations known from General Relativity to this modified gravity context.

## Contribution

It extends universal relations for ISCO properties from General Relativity to dilatonic Einstein-Gauss-Bonnet theory and derives new relations for rotating neutron stars.

## Key findings

- Universal relations for scaled ISCO properties are preserved in the modified theory.
- Additional relations specific to dilatonic Einstein-Gauss-Bonnet theory are obtained.
- The study enhances understanding of neutron star dynamics in alternative gravity models.

## Abstract

The innermost stable circular orbits (ISCOs) around rapidly rotating neutron stars are studied in dilatonic Einstein-Gauss-Bonnet theory. Universal relations for properly scaled ISCO properties are extended from General Relativity to dilatonic Einstein-Gauss-Bonnet theory and additional relations are obtained.