We summarize what large surveys of the contemporary Universe have taught us about the
physics and phenomenology of the processes that link the formation and evolution of …

Radiation, winds, and jets from the active nucleus of a massive galaxy can interact with its
interstellar medium, and this can lead to ejection or heating of the gas. This terminates star …

The radiative cooling timescales at the centers of hot atmospheres surrounding elliptical
galaxies, groups and clusters are much shorter than their ages. Therefore, hot atmospheres …

High resolution X-ray spectroscopy of the hot gas in galaxy clusters has shown that the gas
is not cooling to low temperatures at the predicted rates of hundreds to thousands of solar …

We present the first results from a very deep Chandra X-ray observation of the core of the
Perseus cluster of galaxies. A pressure map reveals a clear thick band of high pressure …

The currently operating X-ray imaging observatories provide us with an exquisitely detailed
view of the Megaparsec-scale plasma atmospheres in nearby galaxy clusters. At z< 0.05, the …

Using Chandra X-ray observations of nine nearby, X-ray luminous elliptical galaxies with
good optical velocity dispersion measurements, we show that a tight correlation exists …

We reproduce the blue and red sequences in the observed joint distribution of colour and
magnitude for galaxies at low and high redshifts using hybrid N-body/semi-analytic …

Feedback from active galactic nuclei (AGNs) is believed to prevent catastrophic cooling in
galaxy clusters. However, how the feedback energy is transformed into heat, and how the …

We discuss, using simple analytical models and magnetohydrodynamic (MHD) simulations,
the origin and parameters of turbulence and magnetic fields in galaxy clusters. Any pre …