Derived vmicro as a function of log g for the APOKASC sample. The color-code represents [Fe/H]. The black dot dashed line represents the vmicro-log g relationship given in Eq. (1) of Holtzman et al. (2015). The blue, lime and red dashed lines represent the vmicro-log g relationship from the GES at a Teff = 4635 K (median Teff of the sample), and [Fe/H] = –0.80, –0.03, +0.30 dex, respectively.
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