Distribution of normalised Hα luminosity as a function of vsini showing the distribution for the M dwarfs contained in the Carmencita catalogue (upper left), CARMENES GTO target sample (upper right), the Volume 14 sample (lower left) and the Volume 7 sample (lower right). Values of v sin i that are < 3 km s−1 are not shown and the number of points excluded are shown to the left of the dashed line. For Hα inactive stars, the value of LHα∕Lbol where the numbers are placed in the figures are at the LHα∕Lbol values that correspond to the detection limit of pEW(Hα) = −0.5Å.
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