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Fig. 3

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Cosmic background spectrum predicted by our model for dusty star-forming and normal spiral galaxies without (dotted line) and with (dashed line) spinning dust emission. The solid line shows the spectrum when the contribution of radio-loud AGN is included (de Zotti et al. 2005; Massardi et al. 2010; Tucci et al. 2011). The blue triangles show direct measurements of the CRB obtained by ARCADE2 (Fixsen et al. 2011) and older surveys reprocessed using the model developed by the ARCADE2 team to measure the CRB (408 MHz and 1.4 GHz). The green triangles show direct measurements of the CIB at 250, 350, and 500 μm using FIRAS data processed as in Lagache et al. (1999). The red triangle shows the CIB measured in the MIPS 24 μm band by Béthermin et al. (2010).

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