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Fig. 2

image

Examples of the υ = 1 → 012CO, 13CO, C18O, C17O and υ = 2 → 112CO lines observed. The lower panels display the normalized spectrum of the target (in red) and the spectrum of the telluric standard (in black). The spectra are presented corrected by the radial velocity of HD 139614 and the barycentric velocity. The references for v = 0 km s-1 are the theoretical wavelengths of each of the transitions. Note that the flux scale is larger for the υ = 1 → 012CO lines. Error bars are 3σ. Several υ = 3 → 212CO lines were covered in the spectra but none were detected. See Table A.1 for a summary of the centers, fluxes, flux upper limits and FWHM of the lines.

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