Dark cores from the 2 Micron All Sky Survey Point Source Catalog (2MASS PSC) by Dobashi (2011). Contours start from mag; the increment is 1.5 mag, and thick lines are drawn at every four contours. The positions of the ammonia cores observed with the Effelsberg 100-m telescope are marked by arrows (SS3 was analyzed in Paper I). Numbers in parentheses denote individual dust cores compiled in Dobashi’s catalog.
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