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Fig. 7

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Colour–colour figure log (F160/F250) vs. log (F350/F500) showing the Herschel photometry of all sources detected in the field. The symbols are the same as in Fig. 5. The known YSOs appear bluer at log (F160/F250) than the candidate cores. There is, however, no difference in colour at log (F350/F500). Note that redward is towards the left in this diagram.

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