Color − magnitude diagrams for the X-ray selected Carina members (crosses) in the different clusters in the CNC. Objects with infrared excesses are additionally marked by red open boxes. The solid green line shows the 3 Myr isochrone, the red and the blue lines show the low-mass (M ≤ 7 M_⊙) isochrones for ages of 1 Myr and 10 Myr, respectively. The large solid dots mark the positions of 1 M_⊙ stars, the asterisks those of 0.075 M_⊙ objects on these isochrones. The arrows show the extinction vector for A_V = 10 mag, and the dashed green line shows the 3 Myr isochrone redenned by that amount. The sequence of blue errorbars near the right edge indicates the typical range of magnitude dependent photometric uncertainties. In the CMD for Tr 14, the green crosses mark the X-ray sources in the central R = 2′ cluster core.