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Fig. 4
The spectral indices TiO 5 − [CaH 2 + CaH 3] of the TLS candidates (star symbols). Three sequences from Gizis (1997) are shown: main-sequence disk dwarfs dKV − dMV (filled circles), subdwarfs sdK − sdM (open circles), and extra-subdwarfs esdK − esdM (open squares).
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