Neutron star cooling and GW170817 constraint within quark-meson coupling models *
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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my.um.eprints.342232022-09-08T04:18:36Z http://eprints.um.edu.my/34223/ Neutron star cooling and GW170817 constraint within quark-meson coupling models * Lourenco, Odilon Lenzi, Cesar H. Dutra, Mariana Frederico, Tobias Bhuyan, Mrutunjaya Negreiros, Rodrigo Flores, Cesar V. Grams, Guilherme Menezes, Debora P. QC Physics 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. IOP Publishing Ltd 2021-02 Article PeerReviewed Lourenco, Odilon and Lenzi, Cesar H. and Dutra, Mariana and Frederico, Tobias and Bhuyan, Mrutunjaya and Negreiros, Rodrigo and Flores, Cesar V. and Grams, Guilherme and Menezes, Debora P. (2021) Neutron star cooling and GW170817 constraint within quark-meson coupling models *. Chinese Physics C, 45 (2). ISSN 1674-1137, DOI https://doi.org/10.1088/1674-1137/abca1c <https://doi.org/10.1088/1674-1137/abca1c>. 10.1088/1674-1137/abca1c |
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QC Physics Lourenco, Odilon Lenzi, Cesar H. Dutra, Mariana Frederico, Tobias Bhuyan, Mrutunjaya Negreiros, Rodrigo Flores, Cesar V. Grams, Guilherme Menezes, Debora P. Neutron star cooling and GW170817 constraint within quark-meson coupling models * |
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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. |
format |
Article |
author |
Lourenco, Odilon Lenzi, Cesar H. Dutra, Mariana Frederico, Tobias Bhuyan, Mrutunjaya Negreiros, Rodrigo Flores, Cesar V. Grams, Guilherme Menezes, Debora P. |
author_facet |
Lourenco, Odilon Lenzi, Cesar H. Dutra, Mariana Frederico, Tobias Bhuyan, Mrutunjaya Negreiros, Rodrigo Flores, Cesar V. Grams, Guilherme Menezes, Debora P. |
author_sort |
Lourenco, Odilon |
title |
Neutron star cooling and GW170817 constraint within quark-meson coupling models * |
title_short |
Neutron star cooling and GW170817 constraint within quark-meson coupling models * |
title_full |
Neutron star cooling and GW170817 constraint within quark-meson coupling models * |
title_fullStr |
Neutron star cooling and GW170817 constraint within quark-meson coupling models * |
title_full_unstemmed |
Neutron star cooling and GW170817 constraint within quark-meson coupling models * |
title_sort |
neutron star cooling and gw170817 constraint within quark-meson coupling models * |
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IOP Publishing Ltd |
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2021 |
url |
http://eprints.um.edu.my/34223/ |
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1744649165007224832 |
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13.160551 |