From the 1 of 9 linked papers with an AI index.
9 papers
Constraints on primordial black holes from the first part of LIGO-Virgo-KAGRA fourth observing run
M. Andrés-Carcasona, A. J. Iovino, E. Vallejo-Pagès +4
The paper uses data from the first part of the LIGO‑Virgo‑KAGRA O4 run to place the strongest limits to date on the fraction of dark matter that can be in primordial black holes ac…
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…
The Heavy Tailed Non-Gaussianity of the Supermassive Black Hole Gravitational Wave Background
Juhan Raidal, Juan Urrutia, Ville Vaskonen +1
We study the non-Gaussian features of the gravitational wave (GW) background generated by a population of inspiraling supermassive black hole (SMBH) binaries. We show that the SMBH…
The impact of non-Gaussianity when searching for Primordial Black Holes with LISA
Antonio Junior Iovino, Gabriele Perna, Hardi Veermäe
LISA can observe cosmological millihertz (mHz) gravitational wave (GW) backgrounds that may offer a decisive test for asteroid-mass primordial black hole (PBH) dark matter (DM). In…
Beware of the running when producing heavy primordial black holes
Sasha Allegrini, Antonio J. Iovino, Hardi Veermäe
We examine single-field inflationary models for the formation of primordial black holes (PBHs). By analyzing the latest observations from the Atacama Cosmology Telescope (ACT)~\cit…
Fuzzy dark matter fails to explain the dark matter cores
MarÃa Benito, Gert Hütsi, Kristjan Müürsepp +4
Ultrafaint dwarf galaxies (UFDs) are ideal for studying dark matter (DM) due to minimal baryonic effects. UFD observations suggest cored DM profiles. We find that the core radius -…