Results 71 to 80 of about 129,239 (245)

Prospects for Measuring Neutron-Star Masses and Radii with X-Ray Pulse Profile Modeling [PDF]

open access: yes, 2013
Modeling the amplitudes and shapes of the X-ray pulsations observed from hot, rotating neutron stars provides a direct method for measuring neutron-star properties.
Chakrabarty, Deepto   +2 more
core   +2 more sources

Neutrostriction in Neutron Stars [PDF]

open access: yesOld and New Concepts of Physics, 2007
It is demonstrated that not only gravity, but also neutrostriction forces due to optical potential created by coherent elastic neutron-neutron scattering can hold a neutron star together. The latter forces can be stronger than gravitational ones. The effect of these forces on mass, radius and structure of the neutron star is estimated.
openaire   +2 more sources

Population of Merging Compact Binaries Inferred Using Gravitational Waves through GWTC-3

open access: yesPhysical Review X, 2023
We report on the population properties of compact binary mergers inferred from gravitational-wave observations of these systems during the first three LIGO-Virgo observing runs.
R. Abbott   +1653 more
doaj   +1 more source

Anisotropic pressure and hyperons in neutron stars

open access: yes, 2014
We study the effects of anisotropic pressure on properties of the neutron stars with hyperons inside its core within the framework of extended relativistic mean field. It is found that the main effects of anisotropic pressure on neutron star matter is to
Sulaksono, A.
core   +1 more source

A Chandra observation of the long-duration X-ray transient KS 1731-260 in quiescence: too cold a neutron star? [PDF]

open access: yes, 2001
After more than a decade of actively accreting at about a tenth of the Eddington critical mass accretion rate, the neutron-star X-ray transient KS 1731-260 returned to quiescence in early 2001. We present a Chandra/ACIS-S observation taken several months
Asai K.   +12 more
core   +3 more sources

The physics of neutron stars [PDF]

open access: yesPhysics-Uspekhi, 2010
28 pages, 8 figures (in v2 and v3, several typos have been fixed). Invited topical review for the special issue of Uspekhi Fiz. Nauk (Physics - Uspekhi) in memory of V. L. Ginzburg (translated from Russian by Yu. V. Morozov, edited by A. M. Semikhatov and by the author)
openaire   +2 more sources

Neutron stars in the laboratory [PDF]

open access: yesInternational Journal of Modern Physics D, 2017
Neutron stars are astrophysical laboratories of many extremes of physics. Their rich phenomenology provides insights into the state and composition of matter at densities which cannot be reached in terrestrial experiments. Since the core of a mature neutron star is expected to be dominated by superfluid and superconducting components, observations ...
Andersson, Nils   +2 more
openaire   +3 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

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

The Masses of Neutron Stars [PDF]

open access: yes, 2016
We present in this article an overview of the problem of neutron star masses. After a brief appraisal of the methods employed to determine the masses of neutron stars in binary systems, the existing sample of measured masses is presented, with a highlight on some very well-determined cases.
Horvath, J. E., Valentim, R.
openaire   +2 more sources

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