XMM-Newton view of the double-peaked Fe Kα complex in E1821+643 E. Jiménez-Bailón, M. Santos-Lleó, E. Piconcelli, G. Matt, M. Guainazzi and P. Rodríguez-Pascual A&A, 461 3 (2007) 917-922 Published online: 11 October 2006 DOI: 10.1051/0004-6361:20065566