Caption: The Athena/X-IFU spectrum of the Fe XXV line compared to the one measured with Hitomi Soft X-ray Spectrometer (SXS). This illustrates the improvement in sensitivity due to the effective area increase between the two instruments. The input model is bapec with a plasma temperature of 4 keV temperature, metal abundance set to 0.7 and a Gaussian velocity broadening of 160 km/s.

Additional comments: The simulation is performed for an integration time of 230 ks, consistent with the length of the early Hitomi observation.

Reference: Hitomi Collaboration, 2016, The quiescent intracluster medium in the core of the Perseus cluster, Nature, 535, 117

Creation date: 11/11/2018. Version #: 4.

Credits: X-IFU Consortium. Copyrights: © DB/X-IFU.