Ratio of the mean unsigned observed dipolar magnetic field (See et al. 2017; Vidotto et al. 2014) over estimated dipolar magnetic field as a function of the mass of the star. The age of the stars is indicated in colour and ranges from 21 Myr to 17.2 Gyr. Magnetostrophic regime and median initial rotation have been used to plot the ratio . Multiple observations of the dipolar magnetic field of a star are again joined by a line. A typical error bar for M⋆ and is indicated in grey. We have adopted a conservative error estimate of 0.434 dex in log Bdip and 0.1 M⊙ in M⋆.
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