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 8 of 8 for “"X-ray bursts"”.
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Millisecond oscillations during thermonuclear X-ray bursts
… trains detected in a search of 159 thermonuclear bursts from eight neutron star X-ray binaries observed with the Rossi X-ray Timing Explorer. I use all data that were public as of September 2001. The frequencies of the oscillations are uniformly distributed between 270-620 Hz, and are nearly …
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Type I X-ray bursts as probes of the neutron star accretion flow
Neutron stars in low-mass X-ray binaries frequently exhibit Type I X-ray bursts caused by unstable nuclear burning of accreted matter on the neutron star surface. X-ray bursts offer the opportunity to constrain the neutron star radii and masses and hence the equation of state of one of the densest …
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Lifetimes of states in 19Ne above the 15O+ alpha threshold
… stellar environments such as supernovae, X-ray bursts, novae etc. and nuclear data are important in the interpretation of these phenomena. When carbon, nitrogen and oxygen isotopes are present in substantial quantities in a star of sufficient mass, the fusion of four hydrogen nuclei to form …
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Astrophysical signatures of neutron stars in compact binaries and experimental improvements on gravitational-wave detectors
… of super-Eddington winds launched in type-I X-ray bursts at the surface of a NS. We show that freshly synthesized heavy elements can be exposed by the wind and will dominate the composition at the photosphere after ~ 1 s. This may create detectable absorption edges in burst spectra and explain …
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Accretion- and nuclear-powered phenomena in neutron stars with millisecond spin periods
"Analysis of 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 …
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Development of a Single-Crystal X-ray Spectropolarimeter and Application to Wire-Array Z-pinches
… usually inferred from the observation of hard x-ray bursts. Spectroscopy is the way to diagnose plasmas, and because anisotropies such as electron beams can lead to the partial polarization of the emitted radiation, polarization spectroscopy, or spectropolarimetry, can be used to diagnose these …
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Observational and evolutionary studies of neutron star X-ray binaries
… and evolutionary studies of neutron stars in X-ray binary systems. A variety of topics are discussed, which are all related by a single scientific theme, namely, helping to set constraints on the mass-radius relation of neutron stars, and hence on their equations of state (EOS). In Chapter 1 we …
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X-ray spectroscopy of neutron star low-mass X-ray binaries
… of topics relating to neutron star lowmass X-ray binaries (LMXBs) and utilize spectral information from X-ray observations to further our understanding of these sources. First, I give an overview of important X- ray astrophysics relevant to the work I present in subsequent chapters, as well as …