Equation of state constraints from the threshold binary mass for prompt collapse of neutron star mergers

A Bauswein, S Blacker, V Vijayan, N Stergioulas… - Physical Review Letters, 2020 - APS
Using hydrodynamical simulations for a large set of high-density matter equations of state
(EOSs), we systematically determine the threshold mass M thres for prompt black-hole …

Systematics of prompt black-hole formation in neutron star mergers

A Bauswein, S Blacker, G Lioutas, T Soultanis… - Physical Review D, 2021 - APS
This study addresses the collapse behavior of neutron star (NS) mergers expressed through
the binary threshold mass M thres for prompt black-hole (BH) formation, which we determine …

[HTML][HTML] Quark models and radial oscillations: decoding the HESS J1731-347 compact object's equation of state

IA Rather, G Panotopoulos, I Lopes - The European Physical Journal C, 2023 - Springer
We investigate the peculiar nature of strange stars through an analysis of different quark
models, ie vBag model and CFL model equation of states at different parameter sets, and …

Interacting and quark matter at finite densities and quark stars

WL Yuan, A Li, Z Miao, B Zuo, Z Bai - Physical Review D, 2022 - APS
The stability and equation of state of quark matter are studied within both two-flavor and (2+
1)-flavor Nambu-Jona-Lasinio (NJL) models including the vector interactions. With a free …

Rotating neutron stars with quark cores

IA Rather, U Rahaman, M Imran, HC Das, AA Usmani… - Physical Review C, 2021 - APS
The rotating neutron-star properties are studied to investigate a phase transition to quark
matter. The density-dependent relativistic mean-field model (DD-RMF) is employed to study …

Modified MIT bag Models—part I: Thermodynamic consistency, stability windows and symmetry group

LL Lopes, C Biesdorf, DP Menezes - Physica Scripta, 2021 - iopscience.iop.org
In this work we study different variations of the MIT bag model. We start with the so called
non-ideal bag model and discuss it in detail. Then we implement a vector interaction in the …

Bayesian study of quark models in view of recent astrophysical constraints

FM da Silva, A Issifu, LL Lopes, LCN Santos… - Physical Review D, 2024 - APS
In this work, we perform a comparative analysis between the density-dependent quark
model and the vector MIT bag model using Bayesian analysis. We use the equations of state …

Bayesian analysis of the properties of hybrid stars with the Nambu–Jona-Lasinio model

A Pfaff, H Hansen, F Gulminelli - Physical Review C, 2022 - APS
The possible presence of deconfined matter in the cores of massive neutron stars is the
subject of a large debate. In this context, it is important to set limits on the size and …

Magnetic-field induced deformation in hybrid stars

IA Rather, AA Rather, I Lopes… - The Astrophysical …, 2023 - iopscience.iop.org
The effects of strong magnetic fields on the deconfinement phase transition expected to take
place in the interior of massive neutron stars are studied in detail for the first time. For …

Universal relations for rapidly rotating cold and hot hybrid stars

N Khosravi Largani, T Fischer… - Monthly Notices of …, 2022 - academic.oup.com
Several global parameters of compact stars are related via empirical relations, which are
(nearly) independent of the underlying equation of state (EoS) of dense matter and …