Colour-magnitude diagram of all NACO-ISPY target candidates. Marked on top are the effective temperatures which a main-sequence star with the corresponding V − K colour would have (Cox 2000). Stellar ages are colour-coded: red: <8 Myr, light blue: 8–30 Myr, dark blue: >30 Myr. Isochrones (Siess et al. 2000) for four stellar ages (counting from the birthline) and for metallicity Z = 0.02 are overplotted.
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