Megan E. Eckart

TL;DR: X-ray observations of the core of the Perseus cluster reveal a remarkably quiescent atmosphere in which the gas has a line-of-sight velocity dispersion of 164 ± 10 kilometres per second in the region 30–60 kiloparsecs from the central nucleus, infering that a total cluster mass determined from hydrostatic equilibrium in a central region would require little correction for turbulent pressure.

TL;DR: The X-ray Integral Field Unit (X-IFU) as mentioned in this paper is the high-resolution Xray spectrometer of the ESA Athena Xray observatory, which is based on a large format array of superconducting molybdenum-gold Transition Edge Sensors cooled at about 90 mK.

TL;DR: The Lynx architecture enables a broad range of unique and compelling science to be carried out mainly through a General Observer Program, envisioned to include detecting the very first seed black holes, revealing the high-energy drivers of galaxy formation and evolution, and characterizing the mechanisms that govern stellar evolution and stellar ecosystems.

TL;DR: In this article, the authors analyzed the Hitomi first-light observation of the Perseus cluster and found no anomalously high fluxes of the nearby faint K line or the Ar satellite line that were proposed as explanations for the earlier 3.5 keV detections.

TL;DR: The X-ray Astronomy Recovery Mission (or, XARM) is proposed to regain the key scientific advances anticipated by the international collaboration behind Hitomi by focusing on one of the main science goals of Hitomi,“Resolving astrophysical problems by precise high-resolution X-Ray spectroscopy”.