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Nonperturbative Models of Quark Stars in f(R) Gravity
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2015 Quark star models with realistic equation of state in nonperturbative f(R) gravity are considered. The mass-radius relation for f(R)=R+αR2 model is obtained.
Artyom V Astashenok +2 more
exaly +3 more sources
Neutron Star Mergers and the Quark Matter Equation of State [PDF]
EPJ Web of Conferences, 2022 As neutron stars merge they can approach very high nuclear density. Here, we summarized recent results for the evolution and gravitational wave emission from binary-neutron star mergers using a a variety of nuclear equations of state with and without a ...
Mathews Grant J. +3 more
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The Macro-Physics of the Quark-Nova: Astrophysical Implications
Universe, 2022 A quark-nova is a hypothetical stellar evolution branch where a neutron star converts explosively into a quark star. Here, we discuss the intimate coupling between the micro-physics and macro-physics of the quark-nova and provide a prescription for how ...
Rachid Ouyed
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Cooling of neutron stars with quark-hadron continuity [PDF]
EPJ Web of Conferences, 2022 Neutron stars are high-density objects formed by the gravitational collapse of massive stars, and the whole star can be likened to a giant nucleus. The interior of a neutron star is considered to contain exotic particles and states which do not appear in
Noda Tsuneo +4 more
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Semi-empirical relation to understand matter properties at neutron star interiors
European Physical Journal C: Particles and Fields, 2022 The occurrence of quark matter at the center of neutron stars is still in debate. This study defines some semi-empirical parameters that try to quantify the presence and the amount of quark matter at star interiors.
Ritam Mallick +2 more
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Strange Quark Star (SQS) in Tolman IV potential with density dependent B-parameter and charge
European Physical Journal C: Particles and Fields, 2022 In this paper, the solutions of Einstein–Maxwell Field Equations for relativistic strange quark star in Tolman-IV potential considering MIT bag model EoS $$p=\frac{1}{3}(\rho -4B)$$ p = 1 3 ( ρ - 4 B ) of interior matter in presence of charge in higher ...
K. B. Goswami +3 more
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Strange quark mass dependence of strange quark star properties
European Physical Journal C: Particles and Fields, 2021 The effects of strange quark mass on masses, radii, and tidal deformabilities of strange quark stars are studied via the quasiparticle model that includes the non-perturbative features of QCD in low density region. The constraints of $$M_{\mathrm {TOV}} >
Bo-Lin Li, Yan Yan, Jia-Lun Ping
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Quark star matter at finite temperature in a quasiparticle model
European Physical Journal C: Particles and Fields, 2021 We study the thermodynamic properties of asymmetric quark matter, large mass quark stars (QSs), and proto-quark stars (PQSs) within the quasiparticle model. Considering the effects of temperature within quasiparticle model can significantly influence the
Peng-Cheng Chu +5 more
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Gravitational Waves from Strange Star Core–Crust Oscillation
Universe, 2022 According to the strange quark matter hypothesis, pulsars may actually be strange stars composed of self-bound strange quark matter. The normal matter crust of a strange star, unlike that of a normal neutron star, is supported by a strong electric field.
Ze-Cheng Zou +2 more
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Quark star matter in heavy quark stars
European Physical Journal C: Particles and Fields, 2021 We study the thermodynamic properties of asymmetric quark matter and large mass quark stars within the confined-isospin-density-dependent-quark-mass model. We find that the quark matter symmetry energy should be very large in order to describe the recent
Peng-Cheng Chu +6 more
doaj +1 more source