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 …

The appearance of active galactic nuclei (AGN) depends so strongly on orientation that our
current classification schemes are dominated by random pointing directions instead of more …

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 …

Gas accretion onto some massive black holes (MBHs) at the centers of galaxies actively
powers luminous emission, but most MBHs are considered dormant. Occasionally, a star …

The combined study of the flaring of active galactic nuclei (AGNs) at radio wavelengths and
parsec-scale jet kinematics with Very Long Baseline Interferometry has led to the view that …

We observe spin blockade due to Pauli exclusion in the tunneling characteristics of a
coupled quantum dot system when two same-spin electrons occupy the lowest energy state …

Radio loud active galactic nuclei (AGNs) are on average 1000 times brighter in the radio
band compared to radio quiet AGNs. We investigate whether this radio loud/quiet dichotomy …

Using a sample of∼ 30,000 quasars from the 7th Data Release of the Sloan Digital Sky
Survey, we explore the range of properties exhibited by high-ionization, broad emission …

Radio astronomy has changed. For years it studied relatively rare sources, which emit
mostly non-thermal radiation across the entire electromagnetic spectrum, ie radio quasars …

Recent studies have proposed that the nuclear millimeter continuum emission observed in
nearby active galactic nuclei (AGNs) could be created by the same population of electrons …