The MUST telescope is being constructed in Lenghu, Qinghai, China. It will be equipped with a 6.5 mirror, a 7deg2 FoV and 20,000 fibre positioners. Observations are expected to start in 2030, and collect 120 millions redshift in 0.1 < z < 5.5 in 8.5 years. This project is led by the Tsinghua University in collaboration with EPFL. An international collaboration policy defines the modalities to...
We present our work towards a field-level inference (FLI) pipeline for the joint analysis of DESI galaxy clustering and CMB lensing from Planck and ACT. Using synthetic data, we demonstrate an end-to-end Bayesian framework that jointly samples the posterior of the initial density field, galaxy bias, and cosmological parameters (Ωₘ, σ₈).
Our differentiable forward model propagates Gaussian...
Dark matter and dark energy dominate the late-time Universe, but their physical nature remains unknown. I will present results on using the clustering of cosmological tracers (supernovae, galaxies, galaxy clusters) to constrain late-time cosmic dynamics from Stage-III to Stage-V surveys within a Bayesian forward-modelling framework. I will summarise key results from existing data sets,...
