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Related papers: Rotating Neutron Stars

200 papers

Neutron stars offer the opportunity to study the behaviour of matter at densities and temperatures inaccessible to terrestrial experiments. Gravitational-wave observations of binary neutron star coalescences can constrain the neutron-star…

High Energy Astrophysical Phenomena · Physics 2021-01-14 Francisco Hernandez-Vivanco , Paul D. Lasky , Eric Thrane , Rory Smith , Debarati Chatterjee , Sarmistha Banik , Theo Motta , Anthony Thomas

Neutron stars may experience differential rotation on short, dynamical timescales following extreme astrophysical events like binary neutron star mergers. In this work, the masses and radii of differentially rotating neutron star models are…

Nuclear Theory · Physics 2023-11-16 Delaney Farrell , Fridolin Weber , Jia Jie Li , Armen Sedrakian

Formed in the aftermath of gravitational core-collapse supernova explosions, neutron stars are unique cosmic laboratories for probing the properties of matter under extreme conditions that cannot be reproduced in terrestrial laboratories.…

Nuclear Theory · Physics 2019-03-06 David Blaschke , Nicolas Chamel

As rotating neutron stars slow down, the pressure and the density in the core region increase due to the decreasing centrifugal forces and phase transitions may occur in the center. We extract the analytic behavior near the critical angular…

Astrophysics · Physics 2008-11-26 H. Heiselberg , M. Hjorth-Jensen

There has been much recent progress in our understanding of quark matter, culminating in the discovery that if such matter exists in the cores of neutron stars it ought to be in a color superconducting state. This paper explores the impact…

Astrophysics · Physics 2008-11-26 F. Weber , R. Negreiros , P. Rosenfield , Andreu Torres i Cuadrat

Gravity compresses the matter in the cores of neutron stars to densities which are significantly higher than the density of ordinary atomic nuclei, thus providing a high-pressure environment in which numerous particle processes - from the…

Astrophysics · Physics 2010-11-19 Fridolin Weber

Properties of rotating neutron stars with the use of relativistic mean-field theory are considered. The performed analysis of neutron star matter is based on the nonlinear Lgrangian density. The presence of nonlinear interaction of vector…

Nuclear Theory · Physics 2009-11-06 Ilona Bednarek , Ryszard Manka

Transitions of nuclear compositions in the crust of a neutron star induced by stellar spin-down are evaluated at zero temperature. We construct a compressible liquid-drop model for the energy of nuclei immersed in a neutron gas, including…

Astrophysics · Physics 2016-08-30 Kei Iida , Katsuhiko Sato

Using the most recent realistic effective interactions for nuclear matter with a smooth extrapolation to high densities including causality, we constrain the equation of state and calculate maximum masses of rotating neutron stars. First…

Astrophysics · Physics 2009-10-31 H. Heiselberg , M. Hjorth-Jensen

In this paper we review the basics of magneto-rotational properties of neutron stars focusing on spin-up/spin-down behavior at different evolutionary stages. The main goal is to provide equations for the spin frequency changes in various…

High Energy Astrophysical Phenomena · Physics 2024-02-08 P. Abolmasov , A. V. Biryukov , S. B. Popov

Ever since the discovery of neutron stars it has been realized that they serve as probes of a physical regime that cannot be accessed in laboratories: strongly degenerate matter at several times nuclear saturation density. Existing nuclear…

High Energy Astrophysical Phenomena · Physics 2013-12-04 M. Coleman Miller

It is shown that the mass loss due to rotation-driven hydrodynamical instability during the catastrophic collapse of the star is small. Neutron star is formed with a large rotational kinetic energy and the spin-down takes place in the…

Astrophysics · Physics 2007-05-23 Zakir F. Seidov

Under certain conditions, the propagation of a beam of oscillating neutrinos in a variable-density medium takes the form of an almost complete transformation of the initial type of neutrino into another type. The depth of oscillations is…

High Energy Physics - Phenomenology · Physics 2008-11-26 S. P. Mikheev , A. Yu. Smirnov

Neutron stars are believed to contain (neutron and proton) superfluids. I will give a summary of a macroscopic description of the interior of neutron stars, in a formulation which is general relativistic. I will also present recent results…

General Relativity and Quantum Cosmology · Physics 2017-08-23 David Langlois

We consider the spin evolution of highly magnetized neutron stars in a hypercritical inflow just after their birth in supernovae. Presence of a strong magnetic field could deform the star and if the symmetry axis of the field is misaligned…

Astrophysics · Physics 2009-11-07 Shin Yoshida

Neutron stars change their structure with accumulation of dark matter. We study how their mass is influenced from the environment. Close to the sun, the dark matter accretion from the neutron star does not have any effect on it. Moving…

Cosmology and Nongalactic Astrophysics · Physics 2024-10-10 Antonino Del Popolo , Morgan Le Delliou , Maksym Deliyergiyev

In this work, masses and radii of neutron stars are considered to investigate the effect of nuclear symmetry energy to the astrophysical observables. A relativistic mean field model with density-dependent meson-baryon coupling constants is…

Nuclear Theory · Physics 2015-05-30 Chung-Yeol Ryu , Chang Ho Hyun , Chang-Hwan Lee

The magnetic fields of neutron stars have a large range (~3e10 - 1e15 G). There may be a tendency for more highly magnetized neutron stars to come from more massive stellar progenitors, but other factors must also play a role. When combined…

High Energy Astrophysical Phenomena · Physics 2015-05-20 Roger A. Chevalier

Many recent observations give restrictions to the equation of state (EOS) for high-density matter. Theoretical studies are needed to try to elucidate these EOSs at high density and/or temperature. With the many known rapidly rotating…

High Energy Astrophysical Phenomena · Physics 2018-02-14 Tomoki Endo

The role of hypernuclear physics for the physics of neutron stars is delineated. Hypernuclear potentials in dense matter control the hyperon composition of dense neutron star matter. The three-body interactions of nucleons and hyperons…

Astrophysics · Physics 2009-06-23 Jurgen Schaffner-Bielich