Neutron-star measurements in the multi-messenger Era

S Ascenzi, V Graber, N Rea - Astroparticle Physics, 2024 - Elsevier
Neutron stars are compact and dense celestial objects that offer the unique opportunity to
explore matter and its interactions under conditions that cannot be reproduced elsewhere in …

Merger and postmerger of binary neutron stars with a quark-hadron crossover equation of state

YJ Huang, L Baiotti, T Kojo, K Takami, H Sotani… - Physical Review Letters, 2022 - APS
Fully general-relativistic binary-neutron-star (BNS) merger simulations with quark-hadron
crossover (QHC) equations of state (EOS) are studied for the first time. In contrast to EOS …

Evidence against a strong first-order phase transition in neutron star cores: Impact of new data

L Brandes, W Weise, N Kaiser - Physical Review D, 2023 - APS
With the aim of exploring the evidence for or against phase transitions in cold and dense
baryonic matter, the inference of the sound speed and equation of state for dense matter in …

Inference of the sound speed and related properties of neutron stars

L Brandes, W Weise, N Kaiser - Physical Review D, 2023 - APS
Information on the phase structure of strongly interacting matter at high baryon densities can
be gained from observations of neutron stars and their detailed analysis. In the present work …

Plausible presence of new state in neutron stars with masses above 0.98 MTOV

MZ Han, YJ Huang, SP Tang, YZ Fan - Science Bulletin, 2023 - Elsevier
We investigate the neutron star (NS) equation of state (EOS) by incorporating multi-
messenger data of GW170817, PSR J0030+ 0451, PSR J0740+ 6620, and state-of-the-art …

Chiral restoration of nucleons in neutron star matter: studies based on a parity doublet model

T Minamikawa, B Gao, T Kojo, M Harada - Symmetry, 2023 - mdpi.com
We review the chiral variant and invariant components of nucleon masses and the
consequence of their existence on the chiral restoration in extreme conditions, particularly in …

The high-density equation of state in heavy-ion collisions: constraints from proton flow

J Steinheimer, A Motornenko, A Sorensen… - The European Physical …, 2022 - Springer
A set of different equations of state is implemented in the molecular dynamics part of a non-
equilibrium transport simulation (UrQMD) of heavy-ion collisions. It is shown how different …

Impact of updated multipole Love numbers and -Love universal relations in the context of binary neutron stars

BK Pradhan, A Vijaykumar, D Chatterjee - Physical Review D, 2023 - APS
Neutron star (NS) equation of state (EoS) insensitive relations or universal relations (UR)
involving neutron star bulk properties play a crucial role in gravitational-wave astronomy …

Gravitational Waves from a Core Mode in Supernovae as Probes of the High-Density Equation of State

P Jakobus, B Müller, A Heger, S Zha, J Powell… - Physical Review Letters, 2023 - APS
Using relativistic supernova simulations of massive progenitor stars with a quark-hadron
equation of state (EOS) and a purely hadronic EOS, we identify a distinctive feature in the …

Binary neutron star mergers as a probe of quark-hadron crossover equations of state

A Kedia, HI Kim, IS Suh, GJ Mathews - Physical Review D, 2022 - APS
It is anticipated that the gravitational radiation detected in future gravitational wave (GW)
detectors from binary neutron star (NS) mergers can probe the high-density equation of state …