We show that the existence of clouds of ultralight particles surrounding black holes during
their cosmological history as members of a binary system can leave a measurable imprint on …

Due to superradiant instabilities, clouds of ultralight bosons can spontaneously grow around
rotating black holes, creating so-called" gravitational atoms". In this work, we study their …

Rotating black holes can produce superradiant clouds of ultralight bosons. When the black
hole is part of a binary system, its cloud can undergo resonances and ionization. These …

Gravitational waves can provide crucial insights about the environments in which black
holes live. In this work, we use numerical relativity simulations to study the behavior of self …

A bstract We study black hole linear perturbation theory in a four-dimensional Schwarzschild
(anti) de Sitter background. When dealing with a positive cosmological constant, the …

We use numerical simulations of scalar field dark matter evolving on a moving black hole
background to confirm the regime of validity of (semi) analytic expressions derived from first …

Ultralight bosons are well-motivated particles from various physical and cosmological
theories and can be spontaneously produced during the superradiant process, forming a …

Ultralight vectors can extract energy and angular momentum from a Kerr black hole (BH)
due to superradiant instability, resulting in the formation of a BH-condensate system. In this …

For dark matter to be detectable with gravitational waves from binary black holes, it must
reach higher than average densities in their vicinity. In the case of light (wavelike) dark …

Superradiant instability can form clouds around rotating black holes (BHs) composed of
ultralight bosonic fields, such as axions. A BH with such a cloud in a binary system exhibits …