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Neutron Star Structure and the Equation of State(Nuclear Astrophysics,New Frontiers in QCD 2010-Exotic Hadron Systems and Dense Matter-)
The structure of neutron stars is considered from theoretical and observational perspectives. We demonstrate an important aspect of neutron star structure: the neutron star radius is primarily…
The Physics of Neutron Stars
Observations that include studies of pulsars in binary systems, thermal emission from isolated neutron stars, glitches from pulsars, and quasi-periodic oscillations from accreting neutron stars provide information about neutron star masses, radii, temperatures, ages, and internal compositions.
Evolution of Proto-Neutron Stars
We study the thermal and chemical evolution during the Kelvin-Helmholtz phase of the birth of a neutron star, employing neutrino opacities that are consistently calculated with the underlying…
The Equation of State of Hot, Dense Matter and Neutron Stars
Composition and structure of protoneutron stars
Rapid Cooling and the Structure of Neutron Stars
This report discusses the following topics on neutron stars: direct URCA neutrino emission; thermal evolution models; analytic model for diffusion through the crust; and core superfluidity. (LSP).
What a Two Solar Mass Neutron Star Really Means
The determination of neutron star masses is reviewed in light of a new measurement of 1.97 M$_\odot$ for PSR J1614-2230 and an estimate of 2.4 M$_\odot$ for the black widow pulsar. Using a simple…
Rapid cooling of neutron stars by hyperons and Delta isobars
It is shown that direct Urca processes with hyperons and/or nucleon isobars can occur in dense matter as long as the concentration of Λ hyperons exceeds a critical value that is less than 3% and is…
The Equation of State of Neutron Star Matter in Strong Magnetic Fields
We study the effects of very strong magnetic fields on the equation of state (EOS) in multicomponent, interacting matter by developing a covariant description for the inclusion of the anomalous…