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.
Results
Showing 1 to 20 of 21 for “"Lsst"”.
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An algorithmic exploration of exoplanetary transits and astrophysical variability with LSST and DES
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-05-01
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Core-collapse supernovae in the great survey era
… repeated-scan optical sky surveys, such as LSST, is coming online, and will map the sky in the time domain with unprecedented depth, completeness, and dynamic range. A main science goal of LSST is to detect Type Ia supernovae, but the survey will also revolutionize our understanding of …
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Building a better flat-field : an instrumental calibration projector for the Large Synoptic Survey Telescope
The Large Synoptic Survey Telescope (LSST) is a next-generation ground-based survey telescope whose science objectives demand photometric precision at the 1% level. Recent efforts towards 1% photometry have advocated in-situ instrumental calibration schemes that use a calibrated detector, rather …
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Data-driven Discovery of Transients in the New Era of Time-Domain Astronomy
… such as the Legacy Survey of Space and Time (LSST) are going to revolutionise transient astronomy, providing opportunities to discover entirely new classes of transients while also enabling a deeper understanding of known classes. LSST is expected to observe over 10 million transient alerts …
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Classification of multiwavelength transients with machine learning
… MeerKAT and the Large Synoptic Survey Telescope (LSST), we are entering a golden era of multiwavelength transient astronomy. The large MeerKAT science project ThunderKAT may dramatically increase the detected number of radio transients. Currently radio transient datasets are still very small, …
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Machine Learning techniques to discover and understand the population of flare stars in MeerLICHT data
… neural network (sect 4.1.3) models on simulated LSST PLAsTiCC data and real data from the MeerLICHT survey. We found that the random forest model outperforms the neural network model in both data sets, achieving test accuracy of 66.0% and 98.0% in the PLAsTiCC and MeerLICHT data respectively. On …
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FireFly: A Bayesian Approach to Source Finding in Astronomical Data
… large data sets from telescopes like MeerKAT, LSST and the SKA. Most of the current source-finding algorithms lack full statistical rigor. Typically these algorithms use some form of thresholding to find sources, which leads to contamination and missed sources. Ideally we would like to use all …
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Reconstructing the Sky with CMB Lensing methods
… a similar result for a cross-correlation with an LSST-like sample, with a large reduction in bias at small noise cost. Finally, we turn to the three-dimensional large scale structure of the Universe probed by galaxy surveys. We show how we can reconstruct the large-scale density field from galaxy …
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Characterisation Of The Blazhko Effect In RR Lyrae Stars Using SuperWASP Data
… and space-based missions such as Gaia, the LSST and PLATO.
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Automating Searches for Gravitationally Lensed AGN in Wide-Field Surveys
… for the release of new surveys such as LSST and Euclid.
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Mapping the Ancient Milky Way and its Relic Dwarf Galaxies
… be readily scalable with upcoming surveys (e.g., LSST) for the next generation of Galactic Archaeology studies.
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Bulges and Disks in the Nearby Universe: Applications to Evolution and Formation of Galaxies
… Future work applying the analysis to DES and LSST galaxies at higher redshifts is suggested to further constrain models of galaxy formation and evolution at higher redshifts.
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Testing General Relativity with the next generation of cosmological surveys
… generation of cosmological surveys including LSST, DES, eBOSS, DESI, PFS, SKA and WFIRST; are aimed to provide percent-level or higher measurement of history of expansion and growth of structure over a volume which is sizable fraction of the whole observable Universe, these measurements …
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Procedure di modellizzazione rapide per la caratterizzazione di Supernovae Core Collapse e di transienti similari
… con il Legacy Survey of Space and Time (LSST) presso il Vera C. Rubin Observatory, che rileverà migliaia di eventi di SN all'anno. Tuttavia, per studiare la natura fisica delle SN, le osservazioni devono essere integrate con una descrizione astrofisica dei processi che regolano la loro …
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Hunting Supermassive Black Holes in the Early Universe
… Rubin Legacy Survey of Space and Time (LSST) and Roman High-Latitude Wide Area Survey (HLWAS). We extend current empirical simulation of quasars and contaminants, low-redshift red galaxies and galactic cool dwarfs, to the surveys limit. We studied the optimal selection, which include …
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Advancing the Matter Bispectrum Estimation in Large-Scale Structure
… information from future galaxy surveys such as LSST and Euclid will soon exceed that available from the CMB, demonstrating a pressing need for such tools. The theoretical modelling of non-linear gravitational interactions is difficult beyond the perturbative regime, necessitating large, …
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Multi-versioned Data Storage and Iterative Processing in a Parallel Array Database Engine
… annually. The Large Synoptic Survey Telescope (LSST) also will be producing approximately 30TB of data per night in a few years. Also, in many fields of science, multidimensional arrays rather than flat tables are standard data types because data values are associated with coordinates in space …
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Extreme Stellar Populations in the Universe: Backsplash Dwarf Galaxies and Wandering Stars
… by blind, repeated surveys like Pan-STARRS and LSST. We find the major contributors to the intergalactic light are the largest mass satellite haloes due to the low stellar fraction expected in smaller mass haloes. The intergalactic light produced by the most massive satellites has a much smaller …
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Relativistic Jets from Compact Binary Mergers as Electromagnetic Counterparts to Gravitational Wave Sources
… e.g. the Large Synoptic Survey Telescope (LSST), will be higher than those expected from a homogeneous, or ‘top-hat’ jet, population. The rates for the various jet structures for orphan afterglows from mergers are discussed, showing that for a population of failed GRBs, or an intrinsic …
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