Total infrared flux, F_TIR, derived from the MIPS 24 μm, PACS 70 and 160 μm maps using Eq. (1). The map is presented in the 12″ resolution of the PACS 160 μm image with a pixel scale of 4″ and units of W m^-2 sr^-1. The black square, black rectangle and red circles demarcate the coverage of the PACS spectroscopic maps, PACS strips, and the SPIRE FTS observations, respectively. North is up, east is to the left.