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 1280 for “"astronomy"”.
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An Analysis of Undergraduate Introductory Astronomy Syllabi from Physics and Astronomy Departments
… analysis of undergraduate level introductory astronomy syllabi. The researcher focused only on introductory astronomy courses offered by physics or astronomy departments in the United States of America. The course syllabus is a document worthy of study for two primary reasons: 1) Its role as a …
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The Pain of Astronomy
This autobiographical collection of poetry discusses the affect of trauma on the human psyche, the cyclical nature of generational flaws, and the struggle of recovery. A significant point of tragedy revealed is rooted in a well-documented, American triple-homicide case often referred to as the West …
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Machine learning in astronomy
The search to find answers to the deepest questions we have about the Universe has fueled the collection of data for ever larger volumes of our cosmos. The field of supernova cosmology, for example, is seeing continuous development with upcoming surveys set to produce a vast amount of data that …
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Charge-coupled device optimizations for astronomy.
In the past decade, charge-coupled devices (CCDs) have rapidly become the astronomical imaging detector of choice for the visible and near-IR spectral regions. There are, however, several problems which have greatly reduced the availability of sufficient quality CCDs to the astronomical community. …
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A scalable packetised radio astronomy imager
Modern radio astronomy telescopes the world over require digital back-ends. The complexity of these systems depends on many site-specific factors, including the number of antennas, beams and frequency channels and the bandwidth to be processed. With the increasing popularity for ever larger …
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Neural cross-correlation for radio astronomy
Correlation engines are essential elements of most signal processing systems. Areas of applicability include image processing, speech synthesis and analysis, high energy physics, wireless and mobile communication systems, spread spectrum communication systems and even prosthetics. Finding cost …
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Promoting mental model-building in astronomy education
The difficulties in learning and teaching astronomy, including the use of models, have been well documented. Models, when used by teachers, are usually utilised in a transmissive way to impart content to pupils. The process of constructing mental models, an essential aspect of the development of …
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DETECTION AND INFERENCE IN GRAVITATIONAL WAVE ASTRONOMY
<p>We explore the detection and astrophysical modeling of gravitational waves de- tected by the Advanced Laser Interferometer Gravitational wave Observatory (LIGO) and Virgo. We discuss the techniques used in the PyCBC search pipeline to discover the first gravitational wave detection GW150914, and …
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A Systems Framework for Multi-Messenger Astronomy
Multi-messenger (and more broadly, panchromatic) astronomy regards the use of multimodal information — incident photons, gravitational waves, neutrinos, and cosmic rays — to form astrophysical inferences. Since each messenger interacts uniquely with the dynamics of the phenomena in question, …
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Active pixel sensors for X-ray astronomy
… CCDs have been the dominant x-ray sensor in astronomy for over ten years. Limitations inherent to CCDs are starting to become important. Active pixel sensors (APS) provide an alternate architecture that may solve these problems. APS-1 is a first-generation sensor designed by Lincoln …
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CARAD: Computer-aided Analysis of Radio Astronomy Data
Radio astronomy studies celestial objects by detecting their radio frequency emissions, enabling observation of phenomena invisible at other wavelengths. Next-generation telescopes generate unprecedented data volumes that challenge traditional analytical approaches. Manual inspection and classical …
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Gamma ray astronomy in the low energy range
A low energy gamma ray telescope, and the results of its observations are described. The telescope consisted of four sodium iodide crystals, each of 120 cm<sup>2</sup> area, occulted by lead discs. Charged particles are rejected using scintillation, anti-coincidence shields.<br/><br/>The telescope …
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A Study of Babylonian Goal-Year Planetary Astronomy
… aspects of Late Babylonian non-mathematical astronomy during the course of this study. These topics include the usage of particular stars in the predictive texts, the meaning of certain terminology found in records of the Babylonian zodiacal signs, and the specific issues related to the …
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The Use of Laser Guide Stars in Astronomy
Submitted by William Weathers (weathrs2@illinois.edu) on 2012-06-05T18:45:19Z No. of bitstreams: 1 2002_neyman.pdf: 5376575 bytes, checksum: 43f6bccf41047b7e0527affb91f5073e (MD5)
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Adventures in radio astronomy instrumentation and signal processing
This thesis describes the design and implementation of several instruments for digitizing and processing analogue astronomical signals collected using radio telescopes. Modern radio telescopes have significant digital signal processing demands that are typically best met using custom processing …
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Bayesian model selection with applications to radio astronomy
This thesis consists of two main parts, both of which focus on Bayesian methods and the problem of model selection in particular. The first part investigates a new approach to computing the Bayes factor for model selection without needing to compute the Bayesian evidence, while the second part …
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Capturing transients: an application of biostatistics to astronomy
… refinement for this methodology pertaining to astronomy using explanatory variables in the modelling. Recommendations are made for further exploration of the topic.
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Fast online predictive compression of radio astronomy data
This report investigates the fast, lossless compression of 32-bit single precision floating-point values. High speed compression is critical in the context of the MeerKAT radio telescope currently under construction in Southern Africa and Australia, which will produce data at rates up to 1 Petabyte …
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