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Fig. 18

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Redshift evolution of the median specific SFR (sSFR = SFR/M ∗ ) of star-forming galaxies. Values for individual GOODS–Herschel galaxies are shown as grey points. Median sSFR values in redshift bins are shown with open circles (blue for GOODS–N and black for GOODS–S). Values combining individual detections and stacking measurements for undetected sources are shown with filled triangles (blue upward for GOODS–N and black downward for GOODS–S). The red solid line is the fit shown in Eq. (13), and the dashed lines are a factor 2 above and below this fit. Starbursts are defined as galaxies with a sSFR  >  2  ×  sSFRMS (blue zone). The yellow zone shows the galaxies with significantly lower sSFR values.

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