The available atomic data used for interpreting and modeling x-ray observations are
reviewed. The applications for these data can be divided into several levels of detail …

Galaxy groups host the majority of matter and more than half of all the galaxies in the
Universe. Their hot (10 7 K), X-ray emitting intra-group medium (IGrM) reveals emission …

New X-ray observatories (Chandra and XMM-Newton) are providing a wealth of high-
resolution X-ray spectra in which hydrogen-and helium-like ions are usually strong features …

Extending the earlier measurements reported in Hitomi collaboration (, Nature, 535, 117),
we examine the atmospheric gas motions within the central 100 kpc of the Perseus cluster …

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 …

Ultraluminous pulsars are a definite proof that persistent super-Eddington accretion occurs
in nature. They support the scenario according to which most Ultraluminous X-ray Sources …

Tidal forces close to massive black holes can violently disrupt stars that make a close
approach. These extreme events are discovered via bright X-ray,,, and optical/ultraviolet …

Abstract The Hitomi Soft X-ray Spectrometer spectrum of the Perseus cluster, with∼ 5 eV
resolution in the 2–9 keV band, offers an unprecedented benchmark of the atomic modeling …

The most important evidence of non-thermal phenomena in galaxy clusters comes from
giant radio haloes (GRHs), spectacular synchrotron radio sources extended over≥ Mpc …

We present athena++ grid-based, hydrodynamic simulations of accretion on to Sagittarius A*
via the stellar winds of the∼ 30 Wolf–Rayet stars within the central parsec of the galactic …