Ponente
Sr.
Gabriele Parimbelli
(SISSA)
Descripción
Massive neutrinos and baryon feedback both suppress the matter power spectrum at small scales and are therefore expected to be degenerate with each other. I will show that this degeneracy is not perfect and can indeed be broken by performing tomography on the cold dark matter and shear power spectra. Neutrino effects and non-linearities are included through fitting functions to N-body simulations, while for baryon feedback I employ the Baryon Correction Model, whose parameters have well-established physical meaning. In the last part I also include the intrinsic alignment effect in weak lensing and show that not even this systematic will likely bias the measurement on neutrino mass.
Autor primario
Sr.
Gabriele Parimbelli
(SISSA)
