scholarly journals Quark-hadron crossover equations of state for neutron stars: Constraining the chiral invariant mass in a parity doublet model

2021 ◽  
Vol 103 (4) ◽  
Author(s):  
Takuya Minamikawa ◽  
Toru Kojo ◽  
Masayasu Harada
Keyword(s):  
Neutron Stars ◽  
Invariant Mass ◽  
Equations Of State ◽  
Parity Doublet ◽  
Doublet Model

scholarly journals Neutron stars within the SU(2) parity doublet model

2008 ◽  
Vol 38 (1) ◽  
pp. 105-113 ◽  
Author(s):  
V. Dexheimer ◽  
G. Pagliara ◽  
L. Tolós ◽  
J. Schaffner-Bielich ◽  
S. Schramm
Keyword(s):  
Neutron Stars ◽  
Parity Doublet ◽  
Doublet Model

scholarly journals PARITY DOUBLET MODEL APPLIED TO NEUTRON STARS

2008 ◽  
Author(s):  
V. DEXHEIMER ◽  
S. SCHRAMM ◽  
H. STOECKER
Keyword(s):  
Neutron Stars ◽  
Parity Doublet ◽  
Doublet Model

scholarly journals Nuclear matter and neutron stars in a parity doublet model

2008 ◽  
Vol 77 (2) ◽  
Author(s):  
V. Dexheimer ◽  
S. Schramm ◽  
D. Zschiesche
Keyword(s):  
Neutron Stars ◽  
Nuclear Matter ◽  
Parity Doublet ◽  
Doublet Model

scholarly journals Updated universal relations for tidal deformabilities of neutron stars from phenomenological equations of state

2021 ◽  
Vol 103 (6) ◽  
Author(s):  
Daniel A. Godzieba ◽  
Rossella Gamba ◽  
David Radice ◽  
Sebastiano Bernuzzi
Keyword(s):  
Neutron Stars ◽  
Equations Of State ◽  
Phenomenological Equations

scholarly journals Beyond second-order convergence in simulations of magnetized binary neutron stars with realistic microphysics

2019 ◽  
Vol 490 (3) ◽  
pp. 3588-3600 ◽  
Author(s):  
E R Most ◽  
L Jens Papenfort ◽  
L Rezzolla
Keyword(s):  
Neutron Stars ◽  
Fourth Order ◽  
Finite Temperature ◽  
Equations Of State ◽  
Magnetic Energy ◽  
Second Order ◽  
Conservative Finite Difference Scheme ◽  
Order Scheme ◽  
Convergence Orders ◽  
The Impact

ABSTRACT We investigate the impact of using high-order numerical methods to study the merger of magnetized neutron stars with finite-temperature microphysics and neutrino cooling in full general relativity. By implementing a fourth-order accurate conservative finite-difference scheme we model the inspiral together with the early post-merger and highlight the differences to traditional second-order approaches at the various stages of the simulation. We find that even for finite-temperature equations of state, convergence orders higher than second order can be achieved in the inspiral and post-merger for the gravitational-wave phase. We further demonstrate that the second-order scheme overestimates the amount of proton-rich shock-heated ejecta, which can have an impact on the modelling of the dynamical part of the kilonova emission. Finally, we show that already at low resolution the growth rate of the magnetic energy is consistently resolved by using a fourth-order scheme.

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