Logarithm of the starburstiness, R_SB, defined as the ratio of the sSFR to that expected for MS galaxies as parametrised by Whitaker et al. (2012), as a function of the logarithm of the stellar mass. XID5395 is the red star. We also plot, with starred symbols, two additional sources from XMM-COSMOS for which the outflows have been revealed: XID2028 at z ~ 1.6, from Cresci et al. 2015a, blue; and XID70135/MIRO20581 at z ~ 2.5 from Perna et al. 2015b, grey. Green squares are objects from the MASSIV survey (Contini et al. 2012) in the redshift range z = 1−2; yellow triangles are sources at z = 1−2 in the Genzel et al. (2014) IFU sample. We also plot, with small grey triangles, all the other sources in the Genzel et al. (2014) samples in the redshift range z = 2−3. The shaded red region indicates the range of sSFR and stellar mass of the targets in Harrison et al. (2012).