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Fig. 9.

image

Spectrum of KDM 6546 from 3400 to 9600 Å as observed on 2012-10-02 with the 2.3 m/WiFeS spectrograph and R ∼ 3000 resolution. The CH band-head between 4280 and 4310 Å is clearly visible (see insert spectrum). We confirm the first speculation that KDM 6546 is indeed a Galactic halo CH star located in front of the Large Magellanic Cloud (Morgan et al. 2003). The four consecutive C2 band-heads between 6000–6200 Å are visible also in the KDM 6546 spectrum as its C/N ratio is higher than classical carbon stars.

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