Discovery of pulsations from the Be / X - ray binary RX J 0101 . 3 − 7211 in the SMC by XMM - Newton ⋆


We report pulsations in the X-ray flux of RXJ0101.3−7211 in the Small Magellanic Cloud (SMC) with a period of (455 ± 2) s in XMM-Newton EPIC-PN data. The X-ray spectrum can be described by a power-law with a photon index of 0.6±0.1. Timing analysis of ROSAT PSPC and HRI archival data confirms the pulsations and indicates a period increase of ∼ 5 s since… (More)


6 Figures and Tables