Fig. 11
Comparison between C2 DIB profiles normalized to their central depths toward HD 23180 (blue), HD 203532 (green), HD 147889 (black), and HD 169454 (brown). The first three targets are those chosen for profile co-additions, for which results are shown in previous figures. The C2 excitation temperatures are 20, 23, and 49 K for HD 23180, HD 169454, and HD 147889, respectively (see Table 2).
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