Revealing the Relativistic Iron line in the Seyfert 1.9 Galaxy comma MCG-5-23-16

We propose a 130ks observation of the Xray bright Seyfert 1.9 galaxy MCG52316 with XMMNewton. Our present analysis of the short XMM observations ofMCG52316 reveals one the best known examples of a relativistically broadenediron K line, with the redwing of the line extending down to 5keV in the EPICdata. Indeed MCG52316 is one of only a handful of objects that clearly show abroad iron line with XMMNewton. Therefore it is imperative that we study theiron K line emission in this Seyfert galaxy in much greater detail. We alsopropose for a simultaneous 50ks Chandra/HETGS observation, to constrain thenarrow core of the line. These observations will not only confirm the existenceof the broad disk line, but also enable us to determine the accretion disk geometry. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]