Extended Data Fig. 5: A comparison of spectral lines at different locations in the AGB wind.
From: Chemical tracers of a highly eccentric AGB–main-sequence star binary

Plots are shown of CS, HCN, SiO and H13CN emission extracted from circular apertures with 100 mas radii centred on the F9 star (blue), on the AGB star (orange) and at the same separation as the F9 star but on the opposite side of the AGB (Opp. F9, brown, dashed). (See Table 1 for line frequencies.) The AGB and Opp. F9 line profiles are scaled by the factor given in the legend to facilitate comparison with the F9 line profiles. The vertical grey line indicates υLSR = − 23km s−1.