Relationship between SSFR and stellar mass for ULIRGs and LIRGs derived from this work. Lines represent the linear fit for ULIRGs (red dotted line) and LIRGs (blue solid line) from the ADF–S sample. Filled red squares and filled blue triangles correspond to the ULIRGs and LIRGs from the ADF–S sample, respectively. Filled blue circles represent the U et al. (2012) LIRG sample, open inverted triangles represent the Howell et al. (2010) LIRG sample, and open black squares represent the Howell et al. (2010) ULIRG sample; open magenta diamonds correspond to the da Cunha et al. (2015) sample of ULIRGs.