X-ray emission from Eta Carinae near periastron in 2009: I. A two-state solution - Hamaguchi, Kenji; Corcoran, Michael F; Russell, Christopher M. P.; Pollock, A. M. T.; Gull, Theodore R; Teodoro, Mairan; Madura, Thomas I.; Damineli Neto, Augusto; Pittard, Julian M (The Astrophysical Journal, 2014)