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Fig. 6


Experimental estimates of τ1 are compared with the model τMLT (Noyes et al. 1984). Top panel: relation of individual estimates of log (τ1) (crosses), their average values in the 300 K-intervals of Teff (squares with error bars), and log (τMLT) (dashed curve) with stellar effective temperature Teff. The solid line of log (τMLT) + 0.82 well approximates the experimental data. Bottom panel: comparison between log (τ1) and log (τMLT) shows a near-linear relation. The slope of the linear regression line (solid) is 1.13 ± 0.06.

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