We review numerous arguments for primordial black holes (PBHs) based on observational
evidence from a variety of lensing, dynamical, accretion and gravitational-wave effects. This …

In the recent years, primordial black holes (PBHs) have emerged as one of the most
interesting and hotly debated topics in cosmology. Among other possibilities, PBHs could …

Abstract The Einstein Telescope (ET), the European project for a third-generation
gravitational-wave detector, has a reference configuration based on a triangular shape …

This Horizon Study describes a next-generation ground-based gravitational-wave
observatory: Cosmic Explorer. With ten times the sensitivity of Advanced LIGO, Cosmic …

Recent population studies have searched for a subpopulation of primordial black holes
(PBHs) in the gravitational-wave (GW) events so far detected by LIGO/Virgo/KAGRA (LVK) …

We describe a search for gravitational waves from compact binaries with at least one
component with mass–and mass ratio q≥ 0.1 in Advanced Laser Interferometer …

Primordial black holes (PBHs), formed out of large overdensities in the early Universe, are a
viable dark matter (DM) candidate over a broad range of masses. Ultralight, asteroid-mass …

We present a search for subsolar mass ultracompact objects in data obtained during
Advanced LIGO's second observing run. In contrast to a previous search of Advanced LIGO …

We find that a uniform scaling of the gravitational free-fall rates and photon-electron
scattering rate leaves most dimensionless cosmological observables nearly invariant. This …

A population of primordial black holes formed in the early Universe could contribute to at
least a fraction of the black-hole merger events detectable by current and future gravitational …