The universe's biggest galaxies have both vast atmospheres and supermassive central
black holes. This article reviews how those two components of a large galaxy couple and …

In a growing number of galaxy clusters diffuse extended radio sources have been found.
These sources are not directly associated with individual cluster galaxies. The radio …

The X-ray Integral Field Unit (X-IFU) is the high resolution X-ray spectrometer of the ESA
Athena X-ray observatory. Over a field of view of 5'equivalent diameter, it will deliver X-ray …

The ASTRO-H mission was designed and developed through an international collaboration
of JAXA, NASA, ESA, and the CSA. It was successfully launched on February 17, 2016, and …

The co-evolution between supermassive black holes and their environment is most directly
traced by the hot atmospheres of dark matter halos. The cooling of the hot atmosphere …

Relativistic reflection features are commonly observed in the X-ray spectra of accreting black
holes. In the presence of high quality data and with the correct astrophysical model, X-ray …

Galaxy clusters are the endpoints of structure formation and are continuously growing
through the merging and accretion of smaller structures. Numerical simulations predict that a …

Aims. We present the reconstruction of hydrostatic mass profiles in 13 X-ray luminous galaxy
clusters that have been mapped in their X-ray and Sunyaev–Zeldovich (SZ) signals out to R …

Without additional heating, radiative cooling of the halo gas of massive galaxies (Milky Way-
mass and above) produces cold gas or stars exceeding that observed. Heating from active …

The detailed velocity structure of the diffuse X-ray emitting intra-cluster medium (ICM)
remains one of the last missing key ingredients in understanding the microphysical …