Giulietti, M.M.GiuliettiMASSARDI, MARCELLAMARCELLAMASSARDILapi, A.A.LapiBONATO, MATTEOMATTEOBONATOEnia, A. F. M.A. F. M.EniaNegrello, M.M.NegrelloD'Amato, Q.Q.D'AmatoBehiri, M.M.BehiriDe Zotti, G.G.De Zotti2022-03-082022-03-0820220035-8711http://hdl.handle.net/20.500.12386/31528We investigate the radio-far infrared (FIR) correlation for a sample of $28$ bright high-redshift ($1 \lesssim z \lesssim 4$) star-forming galaxies selected in the FIR from the Herschel-ATLAS fields as candidates to be strongly gravitationally lensed. The radio information comes either from high sensitivity dedicated ATCA observations at $2.1$ GHz or from cross-matches with the FIRST survey at $1.4$ GHz. By taking advantage of source brightness possibly enhanced by lensing magnification, we identify a weak evolution with redshift out to $z\lesssim 4$ of the FIR-to-radio luminosity ratio $q_{\rm FIR}$. We also find that the $q_{\rm FIR}$ parameter as a function of the radio power $L_{1.4\,\rm GHz}$ displays a clear decreasing trend, similarly to what is observed for optically/radio selected lensed quasars found in literature, yet covering a complementary region in the $q_{\rm FIR}-L_{1.4\,\rm GHz}$ diagram. We interpret such a behavior in the framework of an in-situ galaxy formation scenario, as a result of the transition from an early dust-obscured star-forming phase (mainly pinpointed by our FIR selection) to a late radio-loud quasar phase (preferentially sampled by the optical/radio selection).STAMPAenArticle10.1093/mnras/stac145https://academic.oup.com/mnras/article-abstract/511/1/1408/6515977?redirectedFrom=fulltext&login=falsehttp://arxiv.org/abs/2201.06466v2FIS/05 - ASTRONOMIA E ASTROFISICA