Malizia, A.A.MaliziaFiore, F.F.Fiore2020-09-172020-09-172001-12-01https://hdl.handle.net/20.500.13025/42X-RAY ASTRONOMY Stellar Endpoints,AGN, and the Diffuse X-ray Background. Edited by Nicholas E. White, Giuseppe Malaguti, and Giorgio G.C. Palumbo. Melville, NY American Institute of Physics, 2001. AIP Conference Proceedings, Volume 599, pp. 738-741 (2001).We have studied the correlation between the hard X-ray (10 keV) luminosity, the radio (5GHz) luminosity and the [OIII]5007 luminosity in an heterogeneous sample of emission line AGN observed by BeppoSAX. We find strong correlations between all these luminosities. We also find that the [OIII]5007 luminosity is correlated with the ratio between the 10 keV and the 5 GHz luminosity at the 98% confidence level. This suggests that the [OIII] emission is probably not related only to the UV ionizing radiation from the AGN, and therefore that the [OIII] emission is not a perfect indicator of the isotropic UV radiation field. .10.1063/1.1434730http://adsabs.harvard.edu/abs/2001AIPC..599..738M2001AIPC..599..738M