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Fig. 1
Three-color composite image of M 16 using Herschel 250 μm (red), Spitzer-IRAC 8 μm (green), and DSS1-red (blue). The white circles indicate the positions of O and B stars (Evans et al. 2005). The pink and black dashed circles mark the 250 μm ring-like structure (M 16 H II region), and bubbles N19 and RCW165, respectively.
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