Global ETD Search
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Showing 1 to 3 of 3 for “"radio cosmology"”.
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Improvements In Interferometric Data Modeling For The New Era Of Radio Cosmology
… models of the raw data we collect from a radio telescope. This is important because at the end of the day extracting the cosmological signal from the data will be accomplished by achieving a level of understanding of all the possible alternative sources that might mimic the cosmological …
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Data Analysis in Global 21cm Experiments: Physically Motivated Bayesian Modelling Techniques
21cm cosmology is a field in which the absorption and emission from the cosmic radio background by neutral hydrogen gas is used to probe cosmology and astrophysics of early epochs of the universe. In particular, this process is one of the most promising methods of measuring the Cosmic Dawn, when …
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Simulation-based Bayesian machine learning methods for Cosmology and beyond
… Bayesian inference in sky-averaged 21-cm Cosmology. Moreover, PolySwyft merges nested sampling and neural ratio estimation into a general Bayesian framework, and the method is a general-purpose algorithm applicable beyond Cosmology. This thesis is divided into five sections. In the first …