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 “"eclipsing binaries"”.
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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 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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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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Classification of Variable Stars using Convolutional Neural Network
… RR Lyrae variables, rotation modulations, and eclipsing binaries from a sample among negative or light curves whose variability is unknown. The current model has identified 2,569 new variable star candidates from a total of 209,658 light curves.</p>
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Identifying Exoplanets and Unmasking False Positives with NGTS
… signals, are frequently mimicked by blended eclipsing binaries, allowing me to quantify and prepare strategies for candidate vetting and follow-up. Second, I developed a centroiding algorithm for NGTS, achieving a precision of 0.25 milli-pixel in a CCD image (published in Günther et al., …
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Characterising radio sources in the Small Magellanic Cloud using citizen science and optical spectroscopy
… source. Characterisation revealed 13 stars, 3 eclipsing binaries and 2 nebulae. Between the two analysis methods, with their own independently se-lected source sample pools, 6 sources were found to overlap. The resultant analysis between the methods gave complementary source characterisation …
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SHEDDING NEW LIGHT ON OLD DATA: FINDING NEW RESULTS FOR EXOPLANET SCIENCE IN ARCHIVAL DATA
… objects from other types of variables, such as eclipsing binaries and pulsating stars. This method has proved very successful and has allowed me to nearly quadruple the number of known dipper candidates in the Upper Scorpius and Rho Ophiuchus regions.
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Constraining Stellar Evolution in Young Open Clusters with NGTS
… Complex and to characterise a low-mass eclipsing binary (EB) in a triple-star system located in the Blanco 1 open cluster. By combining NGTS observations with additional photometry and spectroscopy, and by developing a novel method for extracting radial velocities of close binary (or …