XMM-Newton observations of bright and luminous Seyfert 1 galaxies

We propose to observe, for 20 ks each, 4 bright (F{210)>2x10^{11} erg/cm2/s)and luminous (L(210}>10^{44} erg/s) radioquiet AGN from the Grossan HEAO1catalog. The sources have been selected among those not yet observed by imaginghard Xray instruments, but that were bright enough in ROSAT PSPC to makeidentification secure. The observation of these bright and luminous objects willsubstantially contribute to fill our knowledge gap on the spectral properties ofluminous Seyferts, which are still poorly known. The main aim of the proposalis, by comparison with less luminous sources to search for luminositydependentspectral properties, and in particular to test the socalled Xray Baldwineffect, i.e. the diminution of the iron line EW with luminosity. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]