XMM-Newton detection of relativistic Fe emission in the X-ray spectrum of SAX J1711.6–3808

The transient system SAX J1711.6–3808 was observed by XMM-Newton during its 2001 outburst, when the source was close to its maximum outburst luminosity. Our observations show that the broad Fe emission line detected in this outburst by In' t Zand et al. (2002) has indeed a relativistic nature, suggesting that SAX J1711.6–3808 harbors a black hole with a high spin parameter. (© 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)