Antón, S.S.AntónCACCIANIGA, AlessandroAlessandroCACCIANIGABizzocchi, L.L.BizzocchiAfonso, J.J.Afonso2020-10-272020-10-2720181824-8039http://hdl.handle.net/20.500.12386/28028A fraction of Narrow Line Seyfert 1 galaxies (NLS1) are hosted by galaxies that present a disturbed morphology, in some cases hinting for merger processes, that are putative sources of gas replenishment. We have been investigating the poorly studied population of radio loud NLS1 (RL-NLS1) showing a flat radio spectrum, assumed to be the manifestation of the presence of a radio jet. In some of the objects the infrared emission is well fitted by a combination of an AGN component and an "active" host galaxy component like M82, the estimate SFR being in the LIRG/ULIRG range (10-500 Msun/year). In order to better characterize that component, we have been investigating the sub-millimeter/millimeter emission of the sources using APEX. Here we present the results concerning a pilot sample of 2 representative objects.ELETTRONICOenWhat is in a radio loud NLS1?Conference paper10.22323/1.328.00582-s2.0-85073732903https://pos.sissa.it/328/058/https://pos.sissa.it/328/2018rnls.confE..58AFIS/05 - ASTRONOMIA E ASTROFISICA