Results 1 to 10 of about 13,639 (195)

Neutron-mirror neutron mixing and neutron stars [PDF]

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
The oscillation of neutron n into mirror neutron $$n'$$ n ′ , its mass degenerate partner from dark mirror sector, can gradually transform the neutron stars into the mixed stars consisting in part of mirror dark matter.
Zurab Berezhiani   +3 more
doaj   +4 more sources

Hyperons in Neutron Stars [PDF]

open access: yesUniverse, 2021
I review the issues related to the appearance of hyperons in neutron star matter, focusing in particular on the problem of the maximum mass supported by hyperonic equations of state. I discuss the general mechanism that leads to the formation of hyperons
Domenico Logoteta
doaj   +4 more sources

Neutron Stars [PDF]

open access: greenPhysical Review Letters, 1965
Several authors have suggested that the recently discovered extraterrestrial sources of x rays may be hot neutron stars. The plausibility of this suggestion, and in fact the likelihood that astronomers will ever be able to observe neutron stars by their x-ray emission, depend critically upon the cooling times of the hot stars.
John N. Bahcall, R. A. Wolf
openalex   +5 more sources

Abundances of Neutron-capture Elements in 62 Stars in the Globular Cluster Messier 15 [PDF]

open access: yesThe Astrophysical Journal
M15 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

Cooling of neutron stars with quark-hadron continuity [PDF]

open access: yesEPJ 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

Can we distinguish quark stars from neutron stars with measurements of global properties? [PDF]

open access: yesEPJ 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

Spontaneous scalarization in proto-neutron stars

open access: yesEuropean 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   +1 more source

The origin of the first neutron star – neutron star merger [PDF]

open access: yesAstronomy & 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
openaire   +7 more sources

Hyperons in neutron stars [PDF]

open access: yesPhysics Letters B, 2015
13 pages, 3 figures, 2 tables.
Katayama, Tetsuya, Saito, Koichi
openaire   +3 more sources

A Neutron Star Is Born [PDF]

open access: yesUniverse, 2021
A neutron star was first detected as a pulsar in 1967. It is one of the most mysterious compact objects in the universe, with a radius of the order of 10 km and masses that can reach two solar masses. In fact, neutron stars are star remnants, a kind of stellar zombie (they die, but do not disappear).
openaire   +4 more sources

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