Results 41 to 50 of about 781,895 (361)

Neutron–Mirror-Neutron Oscillation and Neutron Star Cooling

open access: yesPhysical Review Letters, 2022
It was pointed out in a recent paper that the observed cooling rate of old, cold neutron stars (NS) can provide an upper limit on the transition rate of neutron to mirror neutron ($n-n'$). This limit is so stringent that it would preclude any discovery of $n \to n'$ oscillation in the current round of terrestrial searches for the process.
Itzhak Goldman   +3 more
openaire   +3 more sources

Binary Neutron Stars with Arbitrary Spins in Numerical Relativity [PDF]

open access: yes, 2015
We present a code to construct initial data for binary neutron star systems in which the stars are rotating. Our code, based on a formalism developed by Tichy, allows for arbitrary rotation axes of the neutron stars and is able to achieve rotation rates ...
Duez, Matt D.   +10 more
core   +3 more sources

Using Gravitational-wave Observations and Quasi-universal Relations to Constrain the Maximum Mass of Neutron Stars [PDF]

open access: yes, 2017
Combining the GW observations of merging systems of binary neutron stars and quasi-universal relations, we set constraints on the maximum mass that can be attained by nonrotating stellar models of neutron stars.
L. Rezzolla, E. Most, L. R. Weih
semanticscholar   +1 more source

STRANGENESS IN NEUTRON STARS [PDF]

open access: yesInternational 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
openaire   +2 more sources

Neutron Star–Neutron Star and Neutron Star–Black Hole Mergers: Multiband Observations and Early Warnings

open access: yesThe Astrophysical Journal, 2022
Abstract The detections of gravitational waves (GWs) from binary neutron star systems and neutron star–black hole systems provide new insights into dense matter properties in extreme conditions and associated high-energy astrophysical processes.
Chang Liu, Lijing Shao
openaire   +2 more sources

Constraint on the maximum mass of neutron stars using GW170817 event [PDF]

open access: yesPhysical Review D, 2019
We revisit the constraint on the maximum mass of cold spherical neutron stars coming from the observational results of GW170817. We develop a new framework for the analysis by employing both energy and angular momentum conservation laws as well as solid ...
M. Shibata   +3 more
semanticscholar   +1 more source

Thermal luminosities of cooling neutron stars [PDF]

open access: yes, 2020
Ages and thermal luminosities of neutron stars, inferred from observations, can be interpreted with the aid of the neutron star cooling theory to gain information on the properties of superdense matter in neutron-star interiors.
A. Potekhin   +4 more
semanticscholar   +1 more source

SUPERFLUID NEUTRON STARS [PDF]

open access: yesThe Ninth Marcel Grossmann Meeting, 2002
2 pages, "mprocl.sty" with LaTeX 2.09; contribution to the 9th Marcel Grossmann Meeting (MG9), Rome, July ...
openaire   +2 more sources

Neutron star merger remnants [PDF]

open access: yesGeneral Relativity and Gravitation, 2020
AbstractBinary neutron star mergers observations are a unique way to constrain fundamental physics and astrophysics at the extreme. The interpretation of gravitational-wave events and their electromagnetic counterparts crucially relies on general-relativistic models of the merger remnants.
openaire   +3 more sources

Masses, Radii, and the Equation of State of Neutron Stars [PDF]

open access: yes, 2016
We summarize our current knowledge of neutron-star masses and radii. Recent instrumentation and computational advances have resulted in a rapid increase in the discovery rate and precise timing of radio pulsars in binaries in the past few years, leading ...
F. Ozel, P. Freire
semanticscholar   +1 more source

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