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astro-ph.CO2025
Equivalence of the field-level inference and conventional analyses on large scales
Francesco Spezzati, Marco Marinucci, Marko Simonović
We study a simple setup with dark matter halos in real space, with the amplitude of the linear density field as the only free cosmological parameter. We show that Eulerian pert…
astro-ph.CO2025
Observed unequal-time power spectrum
Francesco Spezzati, Eleonora Vanzan, Alvise Raccanelli +2
The next generation of galaxy surveys will provide highly precise measurements of galaxy clustering, therefore requiring a corresponding accuracy. Current approaches, which rely on…