activity
20222026
most citedThe recent gravitational wave observation by pulsar timing arrays and primordial black holes: the importance of non-gaussianities

213 citations · 707 across the 27 of their papers we have counts for

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Showing astro-ph.COShow all

23 papers · 1 filter

astro-ph.CO2026

GUEST: Gravitational Universe Exploration with Satellite Tracking. A passive satellite laser-ranging mission for the dark gravitational Universe

Diego Blas, Aurélien Hees, F. Javier Atapuerca +78

GUEST is a space mission concept whose central objective is the detection of gravitational waves (GWs) in the microhertz band -- a physics-rich frequency window that no other prese…

astro-ph.CO2026

Memoirs of the curvaton: non-perturbative non-Gaussianity and supermassive primordial black holes

S. Allegrini, A. J. Iovino, G. Perna +1

The curvaton provides a simple mechanism for generating strongly non-Gaussian curvature perturbations after inflation, with potentially important consequences on small scales. We s…

astro-ph.CO2026

Running into tension: primordial black holes from ultra-slow-roll inflation, spectral running, and the Hubble tension

Miguel A. Sabogal, Antonio J. Iovino, Sunny Vagnozzi

Single-field ultra-slow-roll (USR) inflation is among the most studied mechanisms for primordial black hole (PBH) formation. When a non-stationary inflection point close to CMB sca…

astro-ph.CO2026

Hunting Dark Matter with the Einstein Telescope

A. J. Iovino, M. Maggiore, N. Muttoni +1

Too light primordial black holes evaporate and are therefore strongly constrained by various bounds, e.g. Cosmic Microwave Background distortion. However, if they are formed strong…

astro-ph.CO2026

The Dark Side of the Moon: Listening to Scalar-Induced Gravitational Waves

D. Blas, J. W. Foster, Y. Gouttenoire +4

The collapse of large-amplitude primordial curvature perturbations into planetary-mass primordial black holes generates a scalar-induced gravitational wave background in the Hz…

astro-ph.CO2026★ 15 cited

Primordial black holes: constraints, potential evidence and prospects

Bernard Carr, Antonio J. Iovino, Gabriele Perna +2

Primordial black holes (PBHs) may have formed in the early Universe and may account for all or part of the dark matter. In this review, we summarize the current observational const…