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Fig. 6

X-ray median luminosity of M 34 sample stars with mass between 0.8 M⊙ and 1.2 M⊙ compared with median luminosities of stars with the same mass in the α Per, Pleiades, Hyades, and field stars from Micela (2002). The sizes of the vertical error bars indicate the 25% and 75% quartiles of the distributions.
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