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Abstract:
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Cosmology is in a scientifically very exciting phase. Two decades of surveying the sky have culminated in the celebrated ``Cosmological Standard Model''. Yet, two of its key pillars, dark matter and dark energy -- together accounting for 95% of the mass-energy of the Universe -- remain mysterious. Deep fundamental questions demand answers; to address these burning questions, survey capabilities are being exponentially improved. The new observations will pose tremendous challenges on many fronts -- from the sheer size of the data that will be collected to its modeling and interpretation. The interpretation of the data requires sophisticated simulations on the world's largest supercomputers combined with sophisticated statistical analysis tools. In this talk, I will introduce the "Cosmic Calibration Framework", which combines very costly simulations with advanced statistical methods to create so-called emulators. These emulators are used to extract information from the survey data about the make-up and the history of the Universe.
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