Luca Amendola (University of Heidelberg, Germany)
Date & Time
Tue, 12 March 2024, 14:00 to 15:30
Obaid Siddiqi Meeting Room and Online

Current estimations of cosmological parameters depend often on assumptions about the cosmological model itself. The estimates of H0 or Ωm from CMB surveys, for instance, are valid only assuming a particular model, typically the standard ΛCDM. Similar model-dependent results are obtained also from analyses of large-scale structure. In some case it is however possible to combine observations in such a way to get estimates of physical quantities that are valid regardless (to some extent) of the underlying model. Here I will discuss how one can determine the cosmological expansion rate H(z), the space curvature Omega_k and the deviation from Einstein gravity η by combining in a model-independent way several observational probes, from redshift distortions, to lensing, to matter clustering.

Zoom link:
Meeting ID: 987 9115 7572
Passcode: 121213