Motivated by the increasing number of detections of merging black holes by LIGO-VIRGO-
KAGRA, black hole (BH) binary mergers in the discs of active galactic nuclei (AGNs) is …

Despite solid theoretical and observational grounds for the pairing of supermassive black
holes (SMBHs) after galaxy mergers, definitive evidence for the existence of close (sub …

Most, if not all, galaxies harbor at their center a supermassive black hole (SMBH) that sculpts
the dynamics of objects inhabiting galactic nuclei. SMBH binaries (SMBHBs) are expected to …

Modern numerical hydrodynamics tools have recently enabled detailed examinations of
binaries accreting from prograde circumbinary discs. These have reframed the current …

ABSTRACT The upcoming Laser Interferometer Space Antenna (LISA) is expected to detect
gravitational waves (GWs) from massive black hole binaries (MBHB). Finding the …

We show that gas disks around the components of an orbiting binary system (so-called
minidisks) may be susceptible to a resonant instability that causes the minidisks to become …

The black hole (BH) binaries in active galactic nuclei (AGN) are expected to form mainly
through scattering encounters in the ambient gaseous medium. Recent simulations …

The cosmic merger history of supermassive black hole binaries (SMBHBs) is expected to
produce a low-frequency gravitational wave background (GWB). Here we investigate how …

Blazars display variable emission across the entire electromagnetic spectrum, with time-
scales that can range from a few minutes to several years. Our recent work has shown that a …

Many studies have recently documented the orbital response of eccentric binaries accreting
from thin circumbinary disks, characterizing the change in the binary semimajor axis and …