Data e ora: 18.12.2025, 16:15
Luogo: Aula Conversi, Edificio Marconi

I will discuss constraints on primordial non-Gaussianity (PNG) from Planck PR4, which currently provide the strongest limits on scalar PNG, and prospects for future improvements with LiteBIRD. I will also introduce a new SMICA-based formalism that includes higher-order foreground statistics, enabling direct bispectrum estimation from frequency maps and simultaneous recovery of multiple components. This approach improves uncertainty propagation and optimally combines power-spectrum and bispectrum information.

Speaker: Michele Citran (Université Paris Cité / CNRS)