Results from VIPERS!

check out the VIPERS site:

Mask images

Cosmological constraints

Power spectrum

In Rota et al (2017) we present constraints on the matter density and baryon fraction from VIPERS. The constraints from Planck on these paramters is sensitive to the assumed value of the Hubble constant. Using a local estimate of the Hubble parameter along with the position of the first acoustic peak masured by Planck, we would find the vertical gray region which differs from the best-fit estimates from Planck alone. Upcoming large-scale structure surveys should help to resolve the tension.

Angular power spectrum

In the preprints: We have a new measurement of the galaxy power spectrum at moderate redshifts from the CFHTLS-Wide fields. We used VIPERS spectroscopy to measure the redshift distribution of the sample. The power spectra measurements can be accessed here.

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Tuesday July 2024 19:06:37