Results of ν sin i inferences. Left panel: positions of the sample stars in the spectroscopic HR diagram. Individual objects are colour coded according to their ν sin i value inferred from the Fourier method. Right panel: comparison of ν sin i_SP with ν sin i_FT. The grey line shows the case where ν sin i_FT and ν sin i_SP are equal, while the blue line is an error-weighted fit to the observed values.