Early evolution of AGN X-ray coronae and the X-ray comma BLR comma disc-wind connection

We request a quasisimultaneous XMMNewton and HST/STIS observation of GSN 069,a highEddington ratio true/unabsorbed Seyfert 2 galaxy candidate withultrasoft Xray spectrum. From our study of previous Xray/optical spectra andof UV photometric data, we infer that the lack of BLR in this peculiar objectmay be attributed to ether (i) the lack of hard Xray emission or (ii) anevolutionary scenario in which the BLR are just forming. Recent Swift pointingshave revealed the emergence of hard Xrays in GSN 069, making the proposedobservation highly timely. GSN 069 may represent a true Rosetta stone with whichto follow the formation and early evolution of the Xray corona and to study theconnection between Xrays and the BLR/discwind system. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]