https://doi.org/10.1140/epja/s10050-020-00040-z
Regular Article –Theoretical Physics
Consistent Skyrme parametrizations constrained by GW170817
1
Departamento de Física, Instituto Tecnológico de Aeronáutica, DCTA, São José dos Campos, 12228-900, SP, Brazil
2
Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing, 100190, China
3
Department of Physics, Faculty of Science, University of Malaya, 50603, Kuala Lumpur, Malaysia
4
Depto de Física—CFM, Universidade Federal de Santa Catarina, CP. 476, Florianópolis, SC, CEP 88.040-900, Brazil
* e-mail: odilon.ita@gmail.com
Received:
5
August
2019
Accepted:
5
December
2019
Published online:
4
February
2020
The high-density behavior of stellar matter composed of nucleons and leptons under 
equilibrium and charge neutrality conditions is studied with the Skyrme parametrizations shown to be consistent (Consistent Skyrme Parametrizations, CSkP) with 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 CSkP that produce massive neutron stars give a range of 
for the canonical star radius, in agreement with other theoretical predictions. It is shown that the CSkP are compatible with the region of masses and radii obtained from the analysis of recent data from LIGO and Virgo Collaboration (LVC). A correlation between dimensionless tidal deformability and radius of the canonical star is found, namely, 
, with results for the CSkP compatible with the recent range of 
from LVC. An analysis of the 
graph shows that all the CSkP are compatible with the recent bounds obtained by LVC. Finally, the universal correlation between the moment of inertia and the deformability of a neutron star, named the I-Love relation, is verified for the CSkP; it is also shown to be consistent with the prediction for the moment of inertia of the PSR J0737-3039 primary component pulsar.
© Società Italiana di Fisica (SIF) and Springer-Verlag GmbH Germany, part of Springer Nature, 2020
