Asteroseismic HR diagram for stars in all samples (main panel, orange circles). Effective temperatures have been drawn from the TIC in all cases, to maintain consistency. Contour lines represent measurements from Kepler data reported in Yu et al. (2018), Lund et al. (2017), and Serenelli et al. (2017), with effective temperatures from GDR2. The horizontal dashed line represents the Kepler long-cadence Nyquist frequency. Three stellar tracks at masses 1.0, 1.5, and 2.0 M_⊙ generated by MIST (Choi et al. 2016) are shown in grey. The distributions in T_eff and v_max are shown in the bottom and right panels, respectively. Here, the catalogue is split into the ATL set in turquoise and the Large Sample in pink (dashed), with the Kepler distribution shown in black.