By Yerong Xu

We discover a mildly ionized ultra-fast outflow (UFO) and an unknown broad emission line around 1 keV by performing high-resolution spectroscopy of the XMM-Newton/RGS observation of the narrow-line Seyfert 1 AGN 1H 1934-063. The 1 keV emission can be explained by a strongly blueshifted (0.3 speed of light) secondary reflection model. Our simulations show that Athena/X-IFU can reach over one order of magnitude larger detection statistics of both UFO and 1 keV emission line with one order of magnitude shorter exposure time (10 ks) than XMM-Newton (140 ks). Athena will reveal the connection between the accretion and the ejection in supermassive black holes.

Access to the manuscript in ADS.