Free Access

Fig. 6

image

Observationally-determined Hubble diagram of the Union 2.1. Compilation. Overplotted are the best-fit curves, which are too close to be distinguished, representing the function μ(z) in the polytropic-DM model, when −0.089 < Γ ≤ 0.

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.