Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"accreting neutron stars"”.
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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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Nuclear reactions in the crust of accreting neutron stars
… have been 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 …
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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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Physics of Compton Scattering and X-Ray Spectra of Weakly Magnetic Accreting Neutron Stars
… the X-ray spectra of weakly magnetic accreting neutron stars. We first derive the time-dependent radiative transfer equation that describes spontaneous and induced Compton scattering as well as absorption and emission by static and moving media. We demonstrate that terms in the …
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Accretion- and nuclear-powered phenomena in neutron stars with millisecond spin periods
… observations 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 …
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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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Proton deceleration near the surface on an accreting neutron star
In binary X-ray sources consisting of a neutron star accreting matter from a companion star, Xradiation is produced by the layer of hot, dense plasma that develops where the matter collides with the neutron star surface. The structure of this layer and the spectrum of the radiation produced there …
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The accretion process in neutron-star low-mass X-ray binaries
… fundamental problems in the spectral studies of accreting neutron stars (NSs) in low-mass X-ray binaries involving the X-ray spectral decomposition, the relations between subtypes (mainly atoll and Z sources), and the origins of different X- ray states. Atoll sources are less luminous and have …
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Gravitational waves as direct probes of binary evolution and astrophysical environments
… for this system: gravitational waves from accreting neutron stars that inspiral within the envelope. As covered in the earlier chapters of this dissertation, time-varying mass quadrupole moments source gravitational waves at leading order. As the neutron star accretes from the envelope, …