So-called FR0 radio galaxies have recently emerged as a family of active galaxies with all
the same properties as FRI radio galaxies except for their ratio of core to total emission …

We propose a radically different picture for X-shaped radio galaxies compared with existing
models as transition objects between cold-mode accreting, low-spinning retrograde black …

We study the accretion flow from a counter-rotating torus orbiting a central Kerr black hole
(BH). We characterize the flow properties at the turning point of the accreting matter flow …

Observations at low redshift have begun to tease out the star formation rate in active
galaxies (AGN), which marks the beginning of the black hole-star formation connection over …

We consider a counter-rotating torus orbiting a central Kerr black hole (BH) with
dimensionless spin a, and its accretion flow into the BH, in an agglomerate of an outer …

By exploring more than sixty thousand quasars from the Sloan Digital Sky Survey Data
Release 5, Steinhardt & Elvis discovered a sub-Eddington boundary and a redshift …

Correlations between jet power and active time for z< 0.1 high excitation and low excitation
radio galaxies are explored as well as evidence in favor of a specific, non-random …

Pouliasis et al. explored star formation rates, black hole accretion rates, and stellar mass of
active galaxies at redshift above 3.5, uncovering a leveling off of the star formation rate at …

The moderate spin estimate for the black hole at the center of the cool core cluster H1821+
643 motivates the completion of a story about this object's origin and evolution that was in …

Spin measurement of the 6.5 billion solar mass black hole in M87 from the Event Horizon
Telescope image is the latest in a series that span a wide range in values, but that tend to …