We present a novel universal relation for binary neutron star mergers with long-lived neutron star remnants: inspired by recent work based on numerical relativity simulations, we propose a novel approach using perturbative calculations that allow us to relate the pre-merger neutron star binary tidal deformability to the effective compactness of the post-merger remnant. Our results allow for the prediction of the stellar parameters of a long-lived remnant neutron star from the study of gravitational waves emitted during the pre-merger phase.
@article{arxiv.2106.08023,
title = {Universal Relations for Binary Neutron Star Mergers with Long-lived Remnants},
author = {Praveen Manoharan and Christian J. Krüger and Kostas D. Kokkotas},
journal= {arXiv preprint arXiv:2106.08023},
year = {2021}
}