Fig. 3
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HR diagram of the investigated PMS stars. The solid and dashed lines denote the evolutionary tracks (0.065–4.5 M⊙) and isochrones (2 × 105 yr to the main sequence) of Jung & Kim (2007). We linearly interpolated that model to one tenth of the original. The thick solid line denotes the evolutionary track for a 1 M⊙ star. The circles represent the PMS stars.
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