Expanded view of the approximate temperature map from Fig. 9. The known cluster members and submillimeter emission regions are marked by stars and labeled. Protostars and disks are hot (red), while the starless 870 μm regions are clearly colder than the rest of the cloud. FP-25 is colder than IRS 5, and IRS 7e is also colder than IRS 7w. There is no significant emission near IRS 9, located to the east of a submillimeter “hole”. The Class 0 candidates, SMM 1 A and SMM 1 As, are clearly colder than the dominant Class I protostars and the disked objects. The very low-mass protostellar candidate, G-122, is also colder than more massive Class I sources. The secondary peak of the LABOCA map, coincident with source SMM 6 from Nutter et al. (2005), is a distinct region even colder than the Class 0 protostars.
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