In this work we derive simple closed-form expressions for the dynamical friction acting on
black holes moving through ultralight (scalar field) dark matter, covering both nonrelativistic …

ABSTRACT Some Ultra Diffuse Galaxies (UDGs) appear to host exceptionally rich globular
cluster (GC) systems compared to normal galaxies of the same stellar mass. After re …

Dynamical friction (DF) is the gravitational force experienced by a body moving in a medium
as a result of its density wake. In this work, we investigate the DF acting on circularly moving …

The adiabatic growth of a central massive black hole could compress the surrounding dark
matter halo, leading to a steeper profile of the dark matter halo. This phenomenon is called …

Aims. In this paper, we carry out a phenomenological investigation of the viability of fuzzy
dark matter, which is composed of coherent waves of non-interacting ultralight axions with a …

Black holes (BHs) traversing a dark matter cloud made out of a self-interacting scalar soliton
are slowed down by two complementary effects. At low subsonic speeds, the BH accretes …

The theory of superfluid dark matter is characterized by self-interacting sub-eV particles that
thermalize and condense to form a superfluid core in galaxies. Massive black holes at the …

We explore the possible phases of a condensed dark matter (DM) candidate taken to be in
the form of a fermion with a Yukawa coupling to a scalar particle, at zero temperature but at …

We investigate the flow around a black hole moving through a cloud of self-interacting scalar
dark matter. We focus on the large scalar mass limit, with quartic self-interactions, and on the …

Abstract The Vera C. Rubin Observatory will undertake the Legacy Survey of Space and
Time, providing an unprecedented, volume-limited catalog of star clusters in the Southern …