Results 61 to 70 of about 279,601 (204)
Thermal states of neutron stars with a consistent model of interior [PDF]
, 2017 We model the thermal states of both isolated neutron stars and accreting neutron stars in X-ray transients in quiescence and confront them with observations. We use an equation of state and superfluid baryon gaps, which are consistently calculated. We conclude that the direct Urca process is required to be consistent with low-luminous accreting neutron
arxiv +1 more source
WIMP Annihilation and Cooling of Neutron Stars [PDF]
Phys.Rev.D77:023006,2008, 2007 We study the effect of WIMP annihilation on the temperature of a neutron star. We shall argue that the released energy due to WIMP annihilation inside the neutron stars, might affect the temperature of stars older than 10 million years, flattening out the temperature at $\sim 10^4$ K for a typical neutron star.
arxiv +1 more source
On the Fifth Force and the Structure of Neutron Star [PDF]
Journal of Astronomy and Space Sciences, 1994 In the framework of Thomas-Fermi equation, we have examined the properties of neutron star by assuming the existence of a new intermediate force which is composition dependent.
D. J. Song, H. S. Lee
doaj
Rotating proto-neutron stars: spin evolution, maximum mass and I-Love-Q relations
, 2014 Shortly after its birth in a gravitational collapse, a proto-neutron star enters in a phase of quasi-stationary evolution characterized by large gradients of the thermodynamical variables and intense neutrino emission.
Ferrari, Valeria +3 more
core +1 more source
Studying strong phase transitions in neutron stars with gravitational waves [PDF]
Phys. Rev. D 101, 044019 (2020), 2019 The composition of neutron stars at the extreme densities reached in their cores is currently unknown. Besides nuclear matter of normal neutrons and protons, the cores of neutron stars might harbor exotic matter such as deconfined quarks. In this paper we study strong hadron-quark phase transitions in the context of gravitational wave observations of ...
arxiv +1 more source
Superfluid phases of triplet pairing and rapid cooling of the neutron star in Cassiopeia A
Physics Letters B, 2015 In a simple model it is demonstrated that the neutron star surface temperature evolution is sensitive to the phase state of the triplet superfluid condensate.
Lev B. Leinson
doaj
The influence of strength of hyperon-hyperon interactions on neutron star properties
, 2005 An equation of state of neutron star matter with strange baryons has been obtained. The effects of the strength of hyperon-hyperon interactions on the equations of state constructed for the chosen parameter sets have been analyzed.
Aoki S +8 more
core +1 more source
Neutron rich nuclei and neutron stars [PDF]
, 2013 The PREX experiment at Jefferson Laboratory measures the neutron radius of 208Pb with parity violating electron scattering in a way that is free from most strong interaction uncertainties. The 208Pb radius has important implications for neutron rich matter and the structure of neutron stars.
arxiv +1 more source
Role of strangeness to the neutron star mass and cooling
EPJ Web of Conferences, 2018 Neutron star provides unique environments for the investigation of the physics of extreme dense matter beyond normal nuclear saturation density. In such high density environments, hadrons with strange quarks are expected to play very important role in ...
Lee Chang-Hwan +3 more
doaj +1 more source
Constraints on Microscopic and Phenomenological Equations of State of Dense Matter from GW170817
Universe, 2019 We discuss the constraints on the equation of state (EOS) of neutron star matter obtained by the data analysis of the neutron star-neutron star merger in the event GW170807.
Domenico Logoteta, Ignazio Bombaci
doaj +1 more source