Speaker
Julian Adamek
(ETH Zürich)
Description
Spatial curvature is a fundamental cosmological parameter that is routinely constrained with cosmological observations. Even a small non-zero value would have huge implications if detected. Large-volume galaxy surveys can provide constraints independent of the CMB, reducing the dependence on model assumptions, but only if we have forward models that can treat spatial curvature consistently. I will present a novel approach for N-body simulations of structure formation that model the geometry of spacetime accurately, allowing the generation of halo catalogues for the large survey footprints that are required for constructing clean geometric probes of the curvature parameter.
Author
Julian Adamek
(ETH Zürich)