Open Access

Fig. 9.

image

Correlation matrix P defined in Eq. (50), obtained from the covariance matrix in a (w0, wa) flat cosmology, for an optimistic setting. Left panel: photometric survey combination, without cross-correlation. Right panel: cross-correlation term. The inclusion of cross-correlation between GCph and WL significantly reduces the correlation among the dark-energy parameters w0, wa and the standard parameters ns, h, and Ωb, 0. The FoC reduces from 1907 in the case with no cross-correlations to 824 in the GCph+WL+ case. This, in turn, leads to reduced uncertainties on all parameters.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.