GUIDETTI, DARIADARIAGUIDETTI0000-0002-0029-6353BONDI, MARCOMARCOBONDI0000-0002-9553-7999PRANDONI, ISABELLAISABELLAPRANDONI0000-0001-9680-7092Beswick, R. J.R. J.BeswickMuxlow, T. W. B.T. W. B.MuxlowWrigley, N.N.WrigleySmail, I. R.I. R.SmailMcHardy, I.I.McHardyIvison, R.R.IvisoneMERGE Collaboration2020-05-252020-05-252016http://hdl.handle.net/20.500.12386/25148Multi-wavelength studies of deep radio fields show a composite population of star-forming galaxies, radio-quiet and radio-loud AGNs, with the formers dominating at the lowest flux densities (< 100 microJy). However, the exact mixture between these types of radio sources is still matter of debate. The most direct way to identify faint AGN-driven radio emission is the detection of embedded radio cores in the host galaxies, through ultra-deep and very high resolution radio observations. This would open the perspective of studying the whole AGN population in the radio band, including the radio-quiet component traditionally selected at other wavelengths (opt/IR/X-ray). Assessing the faint AGN component in deep radio fields, will provide an important tool to understand the role of nuclear activity in distant galaxies and its possible co-evolution with star-formation processes, as radio wavelengths are not affected by dust extinction and/or gas absorption. <P />In my talk I will report about the e-MERLIN Galaxy Evolution Survey (eMERGE, PI: Muxlow), a legacy project which aims at undertaking a spatially-resolved study of AGN and star formation processes up to high redshift in a 30 arcmin diameter field in the GOODS-N region, through ultra-deep (sub-microJy rms), sub-arcsec (50-500 mas) imaging at 1.4 and 5 GHz, using combined JVLA and eMERLIN observations. I will focus on the 5 GHz JVLA mosaic observations and catalogue of GOODS-N (94 sources), in the framework of the eMERGE project, and on the study of a larger sample of GOODS-N galaxies (300 objects) selected at 1.4 GHz to constrain the presence of AGN cores in moderate-to-high redshift (1<z<5) galaxies, via radio spectra-morphological analysis with the additional help of multi-wavelength information.ELETTRONICOenMultimedia10.5281/zenodo.60452https://zenodo.org/record/60452http://www.eso.org/sci/meetings/2016/AGN2016.htmlhttps://zenodo.org/communities/agn2016/?page=1&size=202016agnw.confE..38GFIS/05 - ASTRONOMIA E ASTROFISICAERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation