Discovery of a bright X-ray transient in the Galactic Center with XMM-Newton D. Porquet, N. Grosso, V. Burwitz, I. L. Andronov, B. Aschenbach, P. Predehl and R. S. Warwick A&A, 430 1 (2005) L9-L12 Published online: 12 January 2005 DOI: 10.1051/0004-6361:200400117