The reviewed record of science sign in
Pith

arxiv: 2410.00137 · v1 · pith:PXAXTKXU · submitted 2024-09-30 · astro-ph.HE · gr-qc· nucl-th

Accessing universal relations of binary neutron star waveforms in massive scalar-tensor theory

Alan Tsz-Lok Lam , Yong Gao , Hao-Jui Kuan , Masaru Shibata , Karim Van Aelst , Kenta Kiuchi This is my paper

Reviewed by Pithpith:PXAXTKXUopen to challenge →

classification astro-ph.HE gr-qcnucl-th
keywords neutronrelationsbinarygravitymassivequasi-universalrelativityscalar-tensor
0
0 comments X
read the original abstract

We investigate how the quasi-universal relations connecting tidal deformability with gravitational waveform characteristics and/or properties of individual neutron stars that were proposed in the literature within general relativity would be influenced in the massive Damour-Esposito-Farese-type scalar-tensor gravity. For this purpose, we systematically perform numerical relativity simulations of ~120 binary neutron star mergers with varying scalar coupling constants. Although only three neutron-star equations of state are adopted, a clear breach of universality can be observed in the data sets. In addition to presenting difficulties in constructing quasi-universal relations in alternative gravity theories, we also briefly compare the impacts of non-general-relativity physics on the waveform features and those due to the first order or cross-over quantum chromodynamical phase transition.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Gravitational Memory from Hairy Binary Black Hole Mergers

    gr-qc 2026-04 unverdicted novelty 8.0

    Gravitational memory from hairy binary black hole mergers in scalar-Gauss-Bonnet gravity differs from GR by a few percent due to altered nonlinear dynamics, with direct scalar contributions suppressed, and including m...

  2. Donutization Inside Neutron Stars: Shell-Localized Scalar Fields

    gr-qc 2026-05 unverdicted novelty 6.0

    Heavy scalar fields in neutron stars form interior shell-localized profiles that reshape the effective equation of state and break the I-Q relation while remaining hidden from binary pulsar observations.

  3. Dynamical Tidal Response of Non-rotating Black Holes: Connecting the MST Formalism and Worldline EFT

    gr-qc 2025-11 unverdicted novelty 5.0

    Renormalized dynamical tidal response functions for non-rotating black holes in GR carry inevitable ambiguities from renormalization scheme and flow initial condition, yielding scheme-dependent dynamical tidal Love nu...