KOSMA observations. 12CO(1–0) line emission , integrated in velocity intervals of 1 km s-1 between 7 and 12 km s-1. The lowest contour level and step are 0.5 K km s-1. The observed positions are indicated in the lower right panel. This panel also indicates the area observed with the SEST. The filled circles indicate the positions of the candidate emission-line stars, which are labeled with their numbers as in Table 1. Offsets as in Fig. 2.
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