CoRoT light curves (top panels) for VAS 87 from SRa01 (2008 data, left panel) and SRa05 (2011/12 data, right panel; light curve with 32 s sampling in grey and binned to 512 s in black) to the same X-axes scales, original amplitude spectra (grey) from 0 to 2 d^-1 (bottom X axis) i.e., from 0 to 23.15 μHz (top X axis), with the six common intrinsic frequencies identified in black (middle panels), residual amplitude spectra after prewhitening the six frequencies (bottom panels) where the additional eight frequencies found in the 2011/12 data are marked in black (bottom right panel). Note the different Y-axes scales in the top and middle panels.