Erratum: Stellar properties and nuclear matter constraints [Phys. Rev. C 
<b>93</b>
, 025806 (2016)]

Dutra, M.; Lourenço, O.; Menezes, D. P.

doi:10.1103/physrevc.94.049901

Cited by 48 publications

(65 citation statements)

References 4 publications

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“…2 of Ref. [47], a clear difference in behavior is observed. The RMF parametrizations present a saturation for the sound velocity unlike the Skyrme ones, that always increase.…”

Section: A Sound Velocity and Neutron Star Mattermentioning

confidence: 78%

Consistent Skyrme parametrizations constrained by GW170817

et al. 2020

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The high-density behavior of the stellar matter composed of nucleons and leptons under β-equilibrium and charge neutrality conditions is studied with the Skyrme parametrizations shown to be consistent (CSkP) with the nuclear matter, pure neutron matter, symmetry energy and its derivatives in a set of 11 constraints [Dutra et al., Phys. Rev. C 85, 035201 (2012)]. The predictions of these parametrizations on the tidal deformabilities related to the GW170817 event are also examined. The results points out to a correlation between the Love numbers and tidal deformabilities with the respective radii of the binary neutron stars system (BNSS). We also find that those CSkP supporting massive neutron stars (M ∼ 2M⊙) predict radii of the BNSS in full agreement with recent data from LIGO and Virgo Collaboration (LVC) given by R1 = R2 = 11.9 +1.4 −1.4 km. A correlation between dimensionless tidal deformability and radius of the canonical star is found, namely, Λ1.4 ≈ 5.87 × 10 −6 R 7.19 1.4 , with results for the CSkP compatible with the recent range of Λ1.4 = 190 +390 −120 from LVC. Finally, an analysis of the Λ1 ×Λ2 graph shows that the CSkP compatible with the recent bounds obtained by LVC, namely, GSkI, Ska35s20, MSL0 and NRAPR, can also support massive stars (M ∼ 2M⊙), and predict a range of 11.83 km R1.4 12.11 km for the canonical star radius.

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“…2 of Ref. [47], a clear difference in behavior is observed. The RMF parametrizations present a saturation for the sound velocity unlike the Skyrme ones, that always increase.…”

Section: A Sound Velocity and Neutron Star Mattermentioning

confidence: 78%

Consistent Skyrme parametrizations constrained by GW170817

et al. 2020

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“…We start by testing the RR theory with one RMF model, the IU-FSU parametrization proposed in [28]. Besides the tests performed in [37], IU-FSU is also successful in explaining the recent constraint that comes from the GW170817 observation [48]. The results obtained with various parameter values are displayed in Table I and Figure 1.…”

Section: Resultsmentioning

confidence: 99%

Combined Rastall and rainbow theories of gravity with applications to neutron stars

et al. 2019

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The possibility of modifications on general relativity is investigated. We propose an alternative theory of gravity constructed with the combination of Rastall and Rainbow theories. The hydrostatic equilibrium equations are obtained in order to test the new theory in neutron stars, whose mass-radius diagrams are obtained using modern equations of state of nuclear matter derived from relativistic mean field models and compared with the ones computed by the Tolman-Oppenheimer-Volkoff equations. We conclude that substantial modifications are obtained even for very small alterations on the two free parameters, making the reproduction of astrophysical observations an easy task.

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“…[9,10], respectively. Additional constraints on the functionals come from the properties of neutron stars [11]. It turns out that FSUGold and DD-MEδ place maximum mass M of neutron star well below and above the measured limit of 1.93 ≤ M/M ⊙ ≤ 2.05 [12,13] where M ⊙ is the solar mass.…”

Section: Introductionmentioning

confidence: 99%

“…It turns out that FSUGold and DD-MEδ place maximum mass M of neutron star well below and above the measured limit of 1.93 ≤ M/M ⊙ ≤ 2.05 [12,13] where M ⊙ is the solar mass. The DD-MEδ functional comes to this limit only when hyperons are included; however, there are substantial uncertainties in the meson-hyperon couplings [11] as well as in the existence of hyperons in the interior of neutron stars [14].…”

Section: Introductionmentioning

confidence: 99%

Covariant energy density functionals: Nuclear matter constraints and global ground state properties

2016

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The correlations between global description of the ground state properties (binding energies, charge radii) and nuclear matter properties of the state-of-the-art covariant energy density functionals have been studied. It was concluded that the strict enforcement of the constraints on the nuclear matter properties (NMP) defined in Ref.[1] will not necessary lead to the functionals with good description of the binding energies and other ground and excited state properties. In addition, it will not substantially reduce the uncertainties in the predictions of the binding energies in neutron-rich systems. It turns out that the functionals, which come close to satisfying these NMP constraints, have some problems in the description of existing data. On the other hand, these problems are either absent or much smaller in the functionals which are carefully fitted to finite nuclei but which violate some NMP constraints. This is a consequence of the fact that the properties of finite nuclei are defined not only by nuclear matter properties but also by underlying shell effects. The mismatch of phenomenological content, existing in all modern functionals, related to nuclear matter physics and the physics of finite nuclei could also be responsible.

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Erratum: Stellar properties and nuclear matter constraints [Phys. Rev. C 93 , 025806 (2016)]

Cited by 48 publications

References 4 publications

Consistent Skyrme parametrizations constrained by GW170817

Consistent Skyrme parametrizations constrained by GW170817

Combined Rastall and rainbow theories of gravity with applications to neutron stars

Covariant energy density functionals: Nuclear matter constraints and global ground state properties

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