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Spontaneous scalarization in proto-neutron stars
European Physical Journal C: Particles and Fields, 2023 Proto-neutron stars are born when a highly evolved and massive star collapses under gravity. In this paper, we investigate the spontaneous scalarization in proto-neutron stars.
Fahimeh Rahimi, Zeinab Rezaei
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The origin of the first neutron star – neutron star merger [PDF]
Astronomy & Astrophysics, 2018 The first neutron star-neutron star (NS-NS) merger was discovered on August 17, 2017 through gravitational waves (GW170817) and followed with electromagnetic observations. This merger was detected in an old elliptical galaxy with no recent star formation. We perform a suite of numerical calculations to understand the formation mechanism of this merger.
Belczynski, K. +10 more
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Evidence for quark-matter cores in massive neutron stars [PDF]
Nature Physics, 2019 The theory governing the strong nuclear force—quantum chromodynamics—predicts that at sufficiently high energy densities, hadronic nuclear matter undergoes a deconfinement transition to a new phase of quarks and gluons1.
Eemeli Annala +4 more
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STRANGENESS IN NEUTRON STARS [PDF]
International Journal of Modern Physics D, 2007 It is generally agreed on that the tremendous densities reached in the centers of neutron stars provide a high-pressure environment in which several intriguing particles processes may compete with each other. These range from the generation of hyperons to quark deconfinement to the formation of kaon condensates and H-matter.
Weber, Fridolin +3 more
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The Zoo of Isolated Neutron Stars
Universe, 2023 In this brief review, I summarize our basic knowledge about different types of isolated neutron stars. I discuss radio pulsars, central compact objects in supernova remnants, magnetars, nearby cooling neutron stars (also known as the magnificent seven ...
Sergei B. Popov
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Strangeness in nuclei and neutron stars [PDF]
Progress in Particle and Nuclear Physics, 2020 We review the present status of the experimental and theoretical developments in the field of strangeness in nuclei and neutron stars. We start by discussing the K N interaction, that is governed by the presence of the Λ ( 1405 ) . We continue by showing
L. Tolos, L. Fabbietti
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Hyperon-Mixed Neutron Star Matter and Neutron Stars [PDF]
Progress of Theoretical Physics, 2002 Effective Σ − n and Σ − Σ − interactions are derived fromthe G-matrix calculations for {n+Σ − } matter and employed in the investigation of hyperon mixing in neutron star matter. The threshold densities ρt(Y ) at which hyperons start to appear are between 2ρ0 and 3ρ0 (where ρ0 is the normal nuclear density) for both Λ and Σ − , and their fractions ...
Nishizaki, Shigeru +2 more
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Improved treatment of dark matter capture in neutron stars [PDF]
Journal of Cosmology and Astroparticle Physics, 2020 Neutron stars provide a cosmic laboratory to study the nature of dark matter particles and their interactions. Dark matter can be captured by neutron stars via scattering, where kinetic energy is transferred to the star.
N. Bell +3 more
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The Physics of Neutron Stars [PDF]
Science, 2004 Neutron stars are some of the densest manifestations of massive objects in the universe. They are ideal astrophysical laboratories for testing theories of dense matter physics and provide connections among nuclear physics, particle physics, and astrophysics. Neutron stars may exhibit conditions and phenomena not observed elsewhere, such as
Lattimer, J. M., Prakash, M.
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European Physical Journal C: Particles and Fields, 2021 Due to their compactness, neutron stars are the best study matter in high density and strong-field gravity. Hartle and Thorne have proposed a good approximation or perturbation procedure within general relativity for slowly rotating relativistic stars by
M. L. Pattersons, A. Sulaksono
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