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 20 of 39 for “"Eclipsing"”.
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Eclipsing Cataclysmic Variables With TESS
… the behavior of the accretion disks in 17 eclipsing CVs, spanning multiple subclasses: nova-likes, dwarf novae, classical novae, and intermediate polars. Eclipsing systems are crucial for probing disk structure and evolution, as their geometry permits direct observation of temporal …
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An investigation of eclipsing polars
Includes bibliographical references (leaves 47-54).
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The DA + dM eclipsing binary : EC13471-1258
Includes abstract. Includes bibliographical references (leaves 76-77).
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Eclipsing Binaries and Period Changes in the SuperWASP Archive
… of this research project has been to investigate eclipsing binaries using archival data from the SuperWASP (Wide Angle Search for Planets) survey, and specifically to search for evidence of orbital period variations. The short cadence and long time base of SuperWASP light curves make them highly …
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A Photometric Study of the Eclipsing Binary V574 Lyrae
… unparalleled insight into stellar evolution and eclipsing binary variables are particularly excellent laboratories for determining stellar physical parameters and behavior. These parameters, when taken with those of other stars, can be used to evaluate current theories on stellar evolution and …
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A spectroscopic analysis of the eclipsing Nova-like EC21178-54
EC21178-54 is a 13.7 magnitude eclipsing nova-like (NL) cataclysmic variable (CV) discovered in the Edinburgh-Cape survey of blue objects. It has an orbital period of 3.708 hours. High-speed photometric analysis of its light curve reveal that this system is a rich source of quasi-periodic …
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Studying the southerly eclipsing millisecond pulsar J1748-2446A using MeerKAT
This study focuses on the changes of the dispersion measure (DM), rotation measure (RM) and scattering characteristics of PSR J1748-2446A, a millisecond pulsar in an ablating binary system, as its pulses pass through the companion star's outflow material. To conduct this analysis we used two …
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A catalog of new eclipsing binaries in the Kepler database
In this thesis, we present a catalog of binary stars discovered in the publicly available Kepler database, none of which were included in previous such catalogs published by the Kepler science team. A brief review of other binary star catalogs is given, including the Prs̆a et al. catalog on which …
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The identification and classification of variability in stellar sources observed with SuperWasp
… differentiation of Beta Lyrae and W UMa eclipsing binary stars using eclipse-depth ratio; identification of RR Lyrae stars exhibiting the Blazhko effect; and, the presence of the Oosterhoff dichotomy in the Milky Way. During this work, period/amplitude ranges and distribution maps were …
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A study of the beta Cephei stars
… that these did not resemble the variations in eclipsing variables.
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A study of the beta Cephei stars
… that these did not resemble the variations in eclipsing variables.
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First autonomous telescope at Wallace Observatory : impact and preliminary results
… images. Data were taken on T-And0-15785, an eclipsing binary star, in order to test and characterize the system. The out-of-ecliptic R magnitude of T-AndO-15785 was found to be 13.487 ± 0.016. The magnitude changes for the primary and secondary eclipses were found to be 0.72 ± 0.036 and 0.62 …
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Simulations and technology development for time-domain astronomy : TESS and InGaAs detectors
… false-positives arising from stellar eclipsing binaries. I will discuss how planets can be distinguished from eclipsing binaries using the TESS data and a ground-based follow-up campaign. Secondly, I describe the development of InGaAs detectors for near-IR imaging and photometry. These …
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Kairotic Eclipses in Vaccine Legislation: How Overlapping Spheres of Discourse Create Ideal Public Policy Climates
… the general public may be successful. This eclipsing necessitates the overlap of material, social, and political factors for widespread vaccination acceptance and uptake to be achieved via policy communication. This framework is proposed as a means through which communication scholars can …
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IMPROVING TEACHER RETENTION IN THE GRANVILLE COUNTY SCHOOL DISTRICT
… two consecutive years of teacher turnover eclipsing 20%, causing much concern with school administration and within the community. This improvement study was conducted following a small-scale proof-of-concept, concentrated at a middle school within the district. Attempting to improve …
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Suffering and the Search for Wholeness: Beauty and the Cross in Hans Urs Von Balthasar and Contemporary Feminist Theologies
… women by sanctifying the wounds of violence and eclipsing human possibilities for wholeness. Drawing upon the soteriological contributions of feminist and womanist theologians, I argue that beauty must stake a claim in human flourishing, in particular the spiritual and material well-being of …
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Accretion processes in magnetic cataclysmic variables - a detailed study of UZ Fornacis
… variable (mCV) stars with specific focus on the eclipsing AM Her system, UZ Fornacis (hereafter UZ For). The main objective of this thesis is to investigate the underlying emission mechanisms as well as the accretion dynamics in this system with the intention of increasing our understanding of …
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A Predictive Model for the Parallel Processing of Digital Libraries
… and the speed at which it is being collected, is eclipsing our ability to manage it manually. Combine this with the increasing expectations of a growing number of experienced computer users—including real-time access and a demand for expensive-to-process file types such as multimedia—and it is not …
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Characterisation of the Components in Cataclysmic Variables
… components visible. It concentrates on the eclipsing dwarf nova OY Carinae, which has been observed both in superoutburst and quiescence. Optical 'wide B' band light curves were obtained at the end of the 1994 superoutburst and on the decline. Eclipse mapping of these light curves reveals an …
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Ideology and Politics in the Struggle to Regulate the Talking Therapies: The rise and fall of the HPC plans, 2006-2011
… close to talking therapy exceptionalism, thus eclipsing similarities with more contextual healthcare imaginaries. I examine how fantasy provided these positions with affective ‘grip.’ Policy implications for regulation and policy making process are drawn out. More broadly, my account …
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