Probing the intimate link between Accretion and BLR

Details Probing the intimate link between Accretion and BLR Probing the intimate link between Accretion and BLR

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005xmm..prop..196n&link_type=abstract

XMM-Newton Proposal ID #04052408

Physics

Active Galactic Nuclei, Quasars, Bl-Lac Objects, X-Ray Background, Ngc 1320, Ngc 3362, Ngc 5929, F00521-7054, F02581-1136, Ngc 513, Xmm-Newton Proposal 04052408

Scientific paper

We propose to observe with XMM-Newton a sample of 8 Sy2s with and without hidden BLRs, extracted from the spectropolarimetric sample of Tran, for a total exposure of 162 ks. (...) The main goal of this proposal is to measure the 2-10 keV luminosity of these sources and so the accretion rate in Eddington units. This will in turn allow us to verify our low significance (3.2 sigma) findings that Sy2s with hidden BLRs all have accretion rate larger than a minimum threshold value (...) and much larger than that of Sy2s without BLRs. (...) This closely relates the existence of the BLR to the physical state of the central engine in AGN. The proposed observations would allow us to test our hypothesis at a significance bigger than 10 sigma.

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