Exploring the impact of the -cut scheme on neutron star oscillations and thermal relaxations
Oct 17, 202418 pages
Published in:
- Phys.Rev.C 110 (2024) 4, 045807
- Published: Oct 17, 2024
DOI:
- 10.1103/PhysRevC.110.045807 (publication)
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Abstract: (APS)
The -cut scheme was recently proposed as a method of stiffening the neutron-star equation of state (EoS) at high densities without altering its behavior around the nuclear saturation density. We use the -cut scheme to describe the dense matter containing hyperons and kaons, enabling us to obtain high-mass neutron stars without having to modify the relativistic mean field (RMF) model parameters. Using three different parametrizations of the RMF model, we investigate the effects of the -cut scheme on particle populations, tidal deformability, nonradial oscillations, and thermal evolution of neutron stars. Our investigations yielded promising results, supporting the use of the -cut scheme as a viable method for incorporating additional exotic degrees of freedom in neutron-star matter. This is particularly evident in the thermal evolution calculations, where it significantly enhances the alignment between the theoretical predictions and the observed temperatures of neutron stars.References(0)
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