CHAMP+ observations of HD 142527 in CO(6−5) and comparison spectra. The black histogram shows the CHAMP+ central horn spectrum in CO(6−5), with (K) in y-axis and v_lsr(km s^-1) in x-axis. The blue dot-dashed line and the red solid line are the SMA CO(2−1) and HCO+(3−2) profiles from Öberg et al. (2011), in arbitrary units. A comparison model for CO(6−5) is shown in green dashed lines, in (K), modulated by a pointing offset of 4″ southwards, and offset for clarity.