Robust constraints in Cosmology with a very large public repository of science-ready LSS data
por
Dr.Carlos García García(Oxford University Physics)
→
UTC
Maria de Maeztu (Aulas)
Maria de Maeztu
Aulas
Descripción
In this talk I will present an ongoing work towards building a very large public repository containing data from virtually all relevant projected large-scale-structure datasets, consistently re-analysed under a common data analysis framework. The repository consists of a large number of angular power spectra and their uncertainties, combining a wide variety of tracers of interesting quantities for cosmology and astrophysics. I will showcase novel results in cosmology that have been enabled by this framework, such as constraints on the clumpiness parameter S8 that are competitive with Stage-4 surveys, the reconstruction of the cosmic growth history or constraints on baryonic effects with all current weak lensing surveys. Finally, I will argue that multi-tracer analyses are the way forward for LSST and Euclid if we want to robustly constrain the cosmological parameters and identify dark energy.
