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Spontaneous scalarization in proto-neutron stars [PDF]
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
doaj +2 more sources
QCD equations of state and speed of sound in neutron stars [PDF]
AAPPS Bulletin, 2021 Neutron stars are cosmic laboratories to study dense matter in quantum chromodynamics (QCD). The observable mass-radius relations of neutron stars are determined by QCD equations of state and can reflect the properties of QCD phase transitions.
Toru Kojo
doaj +2 more sources
Nuclear Physics of the Outer Layers of Accreting Neutron Stars [PDF]
Journal of Physics G, 45, 093001 (2018, 2018 Now 50 years since the existence of the neutron star crust was proposed, we review the current understanding of the nuclear physics of the outer layers of accreting neutron stars. Nuclei produced during nuclear burning replace the nascent composition of the neutron star ocean and crust.
Z. Meisel +4 more
arxiv +3 more sources
Studying strong phase transitions in neutron stars with gravitational waves [PDF]
Phys. Rev. D 101, 044019 (2020), 2019 The composition of neutron stars at the extreme densities reached in their cores is currently unknown. Besides nuclear matter of normal neutrons and protons, the cores of neutron stars might harbor exotic matter such as deconfined quarks. In this paper we study strong hadron-quark phase transitions in the context of gravitational wave observations of ...
K. Chatziioannou, Sophia Han
arxiv +3 more sources
Abundances of Neutron-capture Elements in 62 Stars in the Globular Cluster Messier 15 [PDF]
The Astrophysical JournalM15 is a globular cluster with a known spread in neutron-capture elements. This paper presents abundances of neutron-capture elements for 62 stars in M15.
Jonathan Cabrera Garcia +9 more
doaj +2 more sources
On the Sound Speed in Neutron Stars [PDF]
Astrophysical Journal Letters, 2022 Determining the sound speed c s in compact stars is an important open question with numerous implications on the behavior of matter at large densities and hence on gravitational-wave emission from neutron stars.
Sinan Altiparmak, C. Ecker, L. Rezzolla
semanticscholar +1 more source
Cooling of neutron stars with quark-hadron continuity [PDF]
EPJ Web of Conferences, 2022 Neutron stars are high-density objects formed by the gravitational collapse of massive stars, and the whole star can be likened to a giant nucleus. The interior of a neutron star is considered to contain exotic particles and states which do not appear in
Noda Tsuneo +4 more
doaj +1 more source
Dark matter admixed neutron stars [PDF]
Physical Review D, 2021 Neutron stars could contain a mixture of ordinary nuclear matter and dark matter, such that dark matter could influence observable properties of the star, such as its mass and radius.
Ben Kain
semanticscholar +1 more source
Can we distinguish quark stars from neutron stars with measurements of global properties? [PDF]
EPJ Web of Conferences, 2022 The phase state of the dense stellar matter is an exciting topic in the area of nuclear astrophysics. It may be probed by observed properties of neutron stars from, for example, the currently operating satellites (NICER, Neutron star Interior Composition
Li Ang
doaj +1 more source
The Mass Distribution of Neutron Stars in Gravitational-wave Binaries [PDF]
Astrophysical Journal Letters, 2021 The discovery of two neutron star–black hole coalescences by LIGO and Virgo brings the total number of likely neutron stars observed in gravitational waves to six.
P. Landry, J. Read
semanticscholar +1 more source