Probing the intimate link between accretion and the Broad Line Region

We propose to observe with XMMNewton a sample of 12 Sy2s with and withouthidden BLRs, extracted from the spectropolarimetric sample of Tran, for a totalexposure of 203 ks. The main goal of this proposal is to measure the 210 keVluminosity of these sources and so the accretion rate in Eddington units. Thiswill in turn allow us to verify our recent, low significance (3.2 sigma)findings that Sy2s with hidden BLRs have all accretion rate larger than aminimum threshold value and much larger than that of Sy2s without BLRs. Thisclosely relates the existence of the BLRs to the physical state of the centralengine in AGNs. The new observations will more than double the existing sampleand will allow us to test our hypothesis at a significance bigger than 10 sigma. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]