Abstract
AbstractIn this work, we investigate the influence of the phase transition and a stiffer fluid in neutron stars’ cores on the static equilibrium configuration, dynamical stability, and tidal deformability. For this aim, it is taken into account that the fluid in the core and the envelope follow the relativistic polytropic equation of state. We find that the phase transition and a stiffer fluid in the core will reflect in the total mass, radius, speed of sound, core radius, radial stability with a slow and rapid conversion at the interface, and tidal deformability. We also investigate the dimensionless tidal deformability $$\varLambda _1$$
Λ
1
and $$\varLambda _2$$
Λ
2
for a binary neutron stars system with chirp mass equal to GW170817. Finally, we contrast our results with observational data to show the role that phase transition and a stiffer core fluid could play in the study of neutron stars.
Funder
Fundação de Amparo à Pesquisa do Estado de São Paulo
Universidad Nacional Mayor de San Marcos
Publisher
Springer Science and Business Media LLC
Subject
Physics and Astronomy (miscellaneous),Engineering (miscellaneous)
Reference68 articles.
1. B.P. Abbott et al., Observation of gravitational waves from binary black hole merger. Phys. Rev. Lett. 116, 061102 (2016). arXiv:1602.03837 [gr-qc]
2. B.P. Abbott et al., GW$$151226$$: observation of gravitational waves from a $$22$$-solar-mass binary black hole coalescence. Phys. Rev. Lett. 116, 241103 (2016). arXiv:1606.04855 [gr-qc]
3. B.P. Abbott et al., GW$$170104$$: observation of a $$50$$-solar-mass binary black hole coalescence at redshift $$0.2$$. Phys. Rev. Lett. 118, 221101 (2017). arXiv:1706.01812 [gr-qc]
4. B.P. Abbott et al., GW$$170814$$: a three-detector observation of gravitational waves from a binary black hole coalescence. Phys. Rev. Lett. 119, 141101 (2017). arXiv:1709.09660 [gr-qc]
5. B.P. Abbott et al., GW$$170608$$: observation of a $$19$$ solar-mass binary black hole coalescence. Astrophys. J. Lett. 851, L35 (2017). arXiv:1711.05578 [astro-ph.HE]
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