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Showing 1 to 20 of 141 for “"Neutron stars"”.
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White Dwarfs and Neutron Stars
Submitted by Jesse Garrison (jagarris@illinois.edu) on 2011-07-06T20:18:48Z No. of bitstreams: 1 1972_sutherland.pdf: 5521266 bytes, checksum: edbe7909c32b744c3af18c47a5e720c8 (MD5)
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Neutrino Transport in Young Neutron Stars
… transport equation are used, and the effect of neutron - proton interactions on the composition of the matter is allowed for. I consider energy dissipation by neutrinos and show that under many circumstances diffusion of neutrinos is more important than neutrino viscosity or heat conduction.
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Accretion by rotating magnetic neutron stars
… pulsating X-ray sources are rotating magnetic neutron stars undergoing accretion. The text of this thesis provides a historical introduction to four studies, contained herein as appendices, in which we develop a theory of accretion by such stars. In these studies, we first give a detailed …
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The magnetospheres of accreting neutron stars
… further the theory of accretion onto magnetic neutron stars in the particular case when the accretion flow is radial and the neutron star is slowly rotating. We examine in detail the formation and structure of the star's magnetosphere, the physical processes that occur in the neighborhood of …
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Equilibria and oscillations of magnetised neutron stars
… configurations and oscillation spectra of neutron stars,<br/>modelled as rotating magnetised fluid bodies in Newtonian gravity. We also explore<br/>the idea that these model neutron stars could have dynamics analogous to rigid-body<br/>free precession.<br/><br/>In axisymmetry, the equations …
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Equation of state of rotating neutron stars
… thesis a very comprehensive model of rotating neutron stars has been constructed, which is based on the Quark-Meson Coupling model (QMC model), using the method developed by Hartle for slowly rotating compact stars. To determine tidal Love number method suggested by ’Hinderer’ is adopted. In …
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Magnetospheres of neutron stars accreting from disks
… accretion-powered pulsars as strongly magnetic neutron stars accreting from disks. It may also be relevant to the luminous galactic bulge X-ray sources that display quasi-periodic oscillations in intensity. These QPO sources are thought by some to be weakly magnetic neutron stars accreting from …
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Near-critical spherically symmetric accretion by neutron stars
Submitted by Carolyn Rauber (crauber2@illinois.edu) on 2012-01-24T20:23:01Z No. of bitstreams: 1 1993_fortner.pdf: 5017205 bytes, checksum: 1bb2f5533aab19fc255c0d3894022c3a (MD5)
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Dynamics in neutron stars and the early universe
… between the superfluid and normal components in neutron stars. A rotating superfluid is threaded by quantized vortex lines which, in the inner crust of a neutron star, can pin to the nuclear lattice that coexists with the superfluid. The dynamics of the superfluid is described by the motion of …
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The galactic population of binaries containing neutron stars
… at odds with the conventional wisdom that most neutron stars receive very large "kick" speeds at birth. This problem may be rectified in a self-consistent way if the kick speed depends on the rotation rate of the pre-collapse core, which I propose is strongly influenced by the evolution of the …
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Nuclear reactions in the crust of accreting neutron stars
… many discoveries from observations of accreting neutron stars in X-ray binaries. Many of the observed phenomena such as superbursts or the cooling of quasi-persistent transients during their quiescent state are affected by the thermal properties and the composition of the crust. To model the …
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Multifaceted Understanding of Accreting Neutron stars and their Environments
Accreting neutron stars are cosmic laboratories featuring some of the most extreme processes in the universe, hosting an accretion disk that supplies material that is magnetically channeled onto the magnetic poles of neutron stars. The emission from these accreting neutron stars peak in the X-rays, …
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On the Kinematics and Merger Locations of Binary Neutron Stars
Contains fulltext : 326059.pdf (Publisher’s version ) (Open Access)
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Multi-wavelength study of neutron stars in the Magellanic Clouds
Massive stars are essential drivers of galaxy evolution, as well as the synthesis of heavier elements, enriching the interstellar and intergalactic medium with metals through every cycle of star formation. Thus to understand the evolving universe, it is essential to quantify the formation and …
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Relativistic neutron stars in general relativity and fourth order gravity
… of nonrotating, spherically symmetric single neutron star systems. The work deals with two distinct problems, each of which involves a stiff system of differential equations. In each case, we deal with stiffness by employing an IMEX Runge-Kutta scheme as opposed to the more computationally …
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Polarized Radiative Transfer in the Magnetospheres and Atmospheres of Neutron Stars
Neutron stars are sources of strongly polarized emission in X-rays or soft gamma-rays due to the presence of strong magnetic fields. Radiation transport of soft X-rays in neutron star surface layers is critical to the determination of the emergent anisotropy of light intensity and polarization …
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Accretion- and nuclear-powered phenomena in neutron stars with millisecond spin periods
… of the X-ray emission produced by accreting neutron stars with millisecond spin periods can provide important information about the masses M and radii R of neutron stars, thereby yielding uniquely valuable information about the still uncertain properties of cold matter at several times the …
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Superdense objects in general relativity : modeling neutron stars with free quark cores
We present the results of a numerical study of neutron stars made of a color-flavor locked (CFL) quark matter center and a nuclear fluid exterior. CFL quark matter is a theoretical state of matter which may exist at the center of highly dense neutron stars. To verify its existence, we need to make …
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