Neutron star cooling and GW170817 constraint within quark-meson coupling models
Neutron star cooling and GW170817 constraint within quark-meson coupling models作者机构:Departamento de Física Instituto Tecnológico de Aeronáutica DCTA Department of Physics Faculty of Science University of Malaya Atomic Molecular and Optical Research Group Advanced Institute of Materials Science Ton Duc Thang University Faculty of Applied Sciences Ton Duc Thang University Instituto de Física Universidade Federal Fluminense 20420 Centro de Ciências Exatas Naturais e Tecnológicas UEMASUL Departamento de Física Universidade Federal de Santa Catarina FlorianópolisSC Univ.Lyon Univ.Claude Bernard Lyon 1
出 版 物:《Chinese Physics C》 (中国物理C)
年 卷 期:2021年第45卷第2期
页 面:535-551页
核心收录:
学科分类:07[理学] 070401[理学-天体物理] 0704[理学-天文学]
基 金: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.) by Funda??o de AmparoàPesquisa do Estado de S?o Paulo (FAPESP) under the thematic projects 2013/26258-4 (O.L,T.F.) and 2017/05660-0 (O.L.,M.D.,T.F.)partly funded by FAPERJ,under grant E-26/203.299/2017 the support from FAPESP Project No.2017/05660-0 FOSTECT Project No.FOSTECT.2019B.04 support from the UK STFC under project number ST/P005314/1
摘 要: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.