Speaker
Mariia Marinichenko
(Leiden University)
Description
Stage IV weak lensing (WL) surveys will probe highly non-linear
scales with unmatched precision, providing valuable data for
improving cosmological parameter estimates. To accurately extract
non-Gaussian information from these data, higher-order statistics
were developed. However, their constraining power remains to be
tested. We examine the extent to which the scattering transform and
Minkowski functionals can improve the sensitivity of WL surveys to
the dark matter decay rate relative to the traditional two-point
statistics. Using FLAMINGO mock WL convergence maps in five
tomographic bins, we evaluate Euclid's constraining power in the
presence of baryonic feedback and galaxy shape noise.
Author
Mariia Marinichenko
(Leiden University)