- Presentation of the Flagship Wide by P. Fosalba
- Presentation of the Flagship Deep by M. Bolzonella
We expand and adjust the synthetic Euclid likelihoods of the MontePython software in order to match the exact recipes used
in previous Euclid Fisher matrix forecasts for several probes: weak lensing cosmic shear, photometric galaxy clustering, the cross-
correlation between the latter observables, and spectroscopic galaxy clustering. We also establish which precision settings are
required...
Euclid will have the unique feature of simultaneously having 2D probes with 3*2pt but also 3D data on the same areas of the sky. In this presentation I will discuss how to use this information in a cost-effective way and the type of gain that can be forecasted.
We describe the status of PSF modelling for SPV3, providing updates and features that may be used in multi-faceted investigations.
We are currently working on propagating expected Euclid PSF errors into shear biases for the WL E2E box as part of the SPV3 exercise. Given some base and perturbed PSFs generated using the PSF Toolkit, we numerically estimate the multiplicative and additive shear biases for galaxies in the Flagship 2 mock catalogue. We currently consider two sources of PSF error: firstly, errors in the PSF...
In this work, we study the effect of spatially-varying multiplicative bias on the cosmological parameter estimation in the combined photometric analysis of the 3x2pt statistics for a Euclid DR3 end-to-end forecast. To do so, we consider a spin-0 m-bias map characterized by a Gaussian profile angular power spectrum that has been studied in the literature. Also, we proceed with a conservative...
