Neutron star cooling and GW170817 constraint within quark-meson coupling models This work is a part of the project INCT-FNA Proc. (464898/2014-5), was partially supported by CNPq (Brazil) (301155.2017-8)(D.P.M.), 310242/2017-7, 406958/2018-1 (O.L.), 308486/2015-3 (T.F.), 433369/2018-3 (M.D.), by Capes-PNPD program (C.V.F.), and by Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) under the thematic projects 2013/26258-4 (O.L, T.F.) and 2017/05660-0 (O.L.,M.D.,T.F.). R.N. also acknowl

In the present work, we used five different versions of the quark-meson coupling (QMC) model to compute astrophysical quantities related to the GW170817 event and the neutron star cooling process. Two of the models are based on the original bag potential structure and three versions consider a harmo...

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Published in:Chinese physics C 2021-02, Vol.45 (2)
Main Authors: Lourenço, Odilon, Lenzi, César H., Dutra, Mariana, Frederico, Tobias, Bhuyan, M., Negreiros, Rodrigo, Flores, César V., Grams, Guilherme, Menezes, Débora P.
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Language:English
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compact star
cooling in stars
equation of state
neutron star merger
quark-meson coupling models
tidal deformability
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container_title Chinese physics C
container_volume 45
creator Lourenço, Odilon
Lenzi, César H.
Dutra, Mariana
Frederico, Tobias
Bhuyan, M.
Negreiros, Rodrigo
Flores, César V.
Grams, Guilherme
Menezes, Débora P.
description In the present work, we used five different versions of the quark-meson coupling (QMC) model to compute astrophysical quantities related to the GW170817 event and the neutron star cooling process. Two of the models are based on the original bag potential structure and three versions consider a harmonic oscillator potential to confine quarks. The bag-like models also incorporate the pasta phase used to describe the inner crust of neutron stars. With a simple method studied in the present work, we show that the pasta phase does not play a significant role. Moreover, the QMC model that satisfies the GW170817 constraints with the lowest slope of the symmetry energy exhibits a cooling profile compatible with observational data.
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subjects compact star
cooling in stars
equation of state
neutron star merger
quark-meson coupling models
tidal deformability
title Neutron star cooling and GW170817 constraint within quark-meson coupling models This work is a part of the project INCT-FNA Proc. (464898/2014-5), was partially supported by CNPq (Brazil) (301155.2017-8)(D.P.M.), 310242/2017-7, 406958/2018-1 (O.L.), 308486/2015-3 (T.F.), 433369/2018-3 (M.D.), by Capes-PNPD program (C.V.F.), and by Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) under the thematic projects 2013/26258-4 (O.L, T.F.) and 2017/05660-0 (O.L.,M.D.,T.F.). R.N. also acknowl
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