Their ubiquity and extreme densities make star clusters probes of prime importance of
galaxy evolution. Old globular clusters keep imprints of the physical conditions of their …

Coalescing supermassive black hole binaries (BHBs) are expected to be the loudest
sources of gravitational waves (GWs) in the Universe. Detection rates for ground or space …

The centers of stellar spheroids less luminous than∼ 10 10 L☉ are often marked by the
presence of nucleated central regions, called" nuclear star clusters"(NSCs). The origin of …

The supermassive black holes originally in the nuclei of two merging galaxies will form a
binary in the remnant core. The early evolution of the massive binary is driven by dynamical …

Nuclear star clusters (NSCs) are often present in spiral galaxies as well as resolved stellar
nuclei (SNi) in elliptical galaxies centres. Ever growing observational data indicate the …

The density of stars in galactic bulges is often observed to be flat or slowly rising inside the
influence radius of the supermassive black hole (SMBH). Attributing the dynamical-friction …

We investigate the evolution of intermediate-mass (IMBHs), stellar (BHs), and binary black
holes (BHBs), deposited near a supermassive black hole (SMBH) by a population of …

For a pair of supermassive black holes (SMBHs) in the remnant of a dual galaxy merger,
well-known models exist to describe their dynamical evolution until the final coalescence …

We present KETJU, a new extension of the widely used smoothed particle hydrodynamics
simulation code GADGET-3. The key feature of the code is the inclusion of algorithmically …

We present a dynamical friction model based on Chandrasekhar's formula that reproduces
the fast inspiral and stalling experienced by satellites orbiting galaxies with a large constant …