Results 101 to 110 of about 129,239 (245)

Constraining the Dense Matter Equation of State with New NICER Mass–Radius Measurements and New Chiral Effective Field Theory Inputs

open access: yesThe Astrophysical Journal Letters
Pulse profile modeling of X-ray data from the Neutron Star Interior Composition Explorer is now enabling precision inference of neutron star mass and radius.
Nathan Rutherford   +14 more
doaj   +1 more source

Too massive neutron stars: The role of dark matter?

open access: yes, 2012
The maximum mass of a neutron star is generally determined by the equation of state of the star material. In this study, we take into account dark matter particles, assumed to behave like fermions with a free parameter to account for the interaction ...
Huang, Feng   +3 more
core   +1 more source

On the state of low luminous accreting neutron stars

open access: yes, 2001
Observational appearance of a neutron star in the subsonic propeller state which is a companion of a wind-fed mass-exchange close binary system is discussed.
Arons   +18 more
core   +1 more source

Strangeness in neutron stars

open access: yesJournal of Physics G: Nuclear and Particle Physics, 2001
15 pages, 6 figures, Presented at the 5th International Conference on Strangeness in Quark Matter (Strangeness 2000), Berkeley, California, USA, July 20-25 ...
openaire   +2 more sources

Hyperneutron Stars from an Ab Initio Calculation

open access: yesThe Astrophysical Journal
The equation of state (EOS) of neutron matter plays a decisive role in understanding the neutron star properties and the gravitational waves from neutron star mergers. At sufficient densities, the appearance of hyperons generally softens the EOS, leading
Hui Tong   +2 more
doaj   +1 more source

Rotating neutron stars

open access: yes, 2008
6 pages, 12 figures, paper presented at the IX International Conference on Hypernuclear and Strange Particle Physics, 10-14 October 2006, Johannes Gutenberg-Universitaet Mainz, Mainz ...
Weber, Fridolin, Rosenfield, Philip
openaire   +2 more sources

Magnetar QPOs and Neutron Star Crust Elasticity

open access: yesUniverse
The crust region is a tiny fraction of neutron stars, but it has a variety of physical properties and plays an important role in astronomical observations. One of the properties characterizing the crust is elasticity. In this review, with the approach of
Hajime Sotani
doaj   +1 more source

Nuclear Pairing Gaps and Neutron Star Cooling

open access: yesUniverse, 2020
We study the cooling of isolated neutron stars with particular regard to the importance of nuclear pairing gaps. A microscopic nuclear equation of state derived in the Brueckner-Hartree-Fock approach is used together with compatible neutron and proton ...
Jin-Biao Wei   +2 more
doaj   +1 more source

Consequences of a strong phase transition in the dense matter equation of state for the rotational evolution of neutron stars

open access: yes, 2017
We explore the implications of a strong first-order phase transition region in the dense matter equation of state in the interiors of rotating neutron stars, and the resulting creation of two disjoint families of neutron-star configurations (the so ...
Bejger, M.   +4 more
core   +1 more source

Physics-informed Priors Improve Gravitational-wave Constraints on Neutron-star Matter

open access: yesThe Astrophysical Journal Letters
Gravitational-wave astronomy shows great promise in determining nuclear physics in a regime not accessible to terrestrial experiments. We introduce physics-informed priors constrained by nuclear theory and perturbative quantum chromodynamics calculations,
Spencer J. Magnall   +4 more
doaj   +1 more source

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