Baryon Acoustic Oscillations with Galaxy Surveys: Present State and Some... - Nikhil Padmanabhan
Автор: Institute for Advanced Study
Загружено: 2023-10-31
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Institute for Advanced Study / Princeton University Joint Astrophysics Colloquium
Topic: Baryon Acoustic Oscillations with Galaxy Surveys: Present State and Some Future Prospects
Speaker: Nikhil Padmanabhan
Affiliation: Yale University
Date: October 31, 2023
I will weave three separate threads. The first will be to describe recent and ongoing results from the Dark Energy Spectroscopic Survey. I will present the BAO results from the early DESI data, and some of the preparatory work for the Year 1 data. I will then present a new approach to reconstruction based on optimal transport, highlighting some recent results and ideas for future applications. I will end by discussing merging perturbative reconstruction ideas with convolutional neural networks, and a possible new application to primordial non-gaussianity.
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