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Fig. 2


Herschel PACS stamps of resolved multiple protostellar systems in Perseus, except for NGC 1333 IRAS 4 which also shows IRAS 4A, an unresolved protobinary. Each stamp is 80× 80. 70, 100 and 160 μm are shown in blue, green and red, respectively. Blue symbols represent the components of a system, with circles denoting those with additional unresolved multiplicity and diamonds indicating those without (known) additional multiplicity. NGC 1333 IRAS 4A is marked in red.

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