The intriguing Fe-line profile in Seyfert 1 nuclei: expanding the XMM-N census

We propose to obtain high signal to noise EPIC spectra of a sample of Xray bright Seyfert 1 galaxies. The main objective is to properly characterizethe profile of the iron fluorescence line. Hence, the sample of Seyfert 1galaxies with proper measurements of the iron line width will beincreased and current (contradictory) models for its origin will be probed. The relatively long exposure times needed will also allow good signal tonoise RGS spectra to characterize the soft Xray emission and measurepossible emission/absorption lines from photoionised gas in the vicinity ofthe nucleus. Rapid variability, when detected, will be used to constrainsizes and causality effects between the different emitting/absorbing regions. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]