Distance-independent two-colour diagram. Simple stellar population colours from the SPoT code are compared to the measured host-galaxy colors (filled yellow circle). Lines and small squares refer to models with metallicity [Fe/H] = −0.7 (blue), [Fe/H] = −0.4 (green), [Fe/H] = 0.0 (violet), [Fe/H] = +0.4 (orange), respectively. Indicative ages are also labelled, from 50 Myr to 14 Gyr. The host galaxy is plotted as a filled red (observed) and yellow (de-reddened) circle. The last value is obtained by applying the value E(B − V)=0.2). No k-correction is applied.
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.