343 citations · 790 across the 15 of their papers we have counts for
15 papers
pbhstat: A Python package for calculating the primordial black hole abundance
Philippa S. Cole, Jacopo Fumagalli
We present pbhstat, a publicly available Python package designed to compute the mass function and total abundance of primordial black holes (PBHs) from a given primordial power spe…
Haloes, other dark matter candidates and astrophysical implications
Philippa S. Cole
It is possible that a multi-component dark matter model is required if primordial black holes only contribute to a fraction of the energy density in dark matter. This is increasing…
Primordial black holes from single-field inflation: a fine-tuning audit
Philippa S. Cole, Andrew D. Gow, Christian T. Byrnes +1
All single-field inflationary models invoke varying degrees of tuning in order to account for cosmological observations. Mechanisms that generate primordial black holes (PBHs) from…
Perspectives on fundamental cosmology from Low Earth Orbit and the Moon
Gianfranco Bertone, Oliver L. Buchmueller, Philippa S. Cole
The next generation of space-based experiments will go hunting for answers to cosmology's key open questions which revolve around inflation, dark matter and dark energy. Low earth…
Disks, spikes, and clouds: distinguishing environmental effects on BBH gravitational waveforms
Philippa S. Cole, Gianfranco Bertone, Adam Coogan +5
Future gravitational wave interferometers such as LISA, Taiji, DECIGO, and TianQin, will enable precision studies of the environment surrounding black holes. In this paper, we stud…
Measuring dark matter spikes around primordial black holes with Einstein Telescope and Cosmic Explorer
Philippa S. Cole, Adam Coogan, Bradley J. Kavanagh +1
Future ground-based gravitational wave observatories will be ideal probes of the environments surrounding black holes with masses . Binary black hole merg…
Smooth vs instant inflationary transitions: steepest growth re-examined and primordial black holes
Philippa S. Cole, Andrew D. Gow, Christian T. Byrnes +1
Primordial black holes (PBHs) can be produced by a range of mechanisms in the early universe. A particular formation channel that connects PBHs with inflationary phenomenology invo…
Dark Matter In Extreme Astrophysical Environments
Masha Baryakhtar, Regina Caputo, Djuna Croon +37
Exploring dark matter via observations of extreme astrophysical environments -- defined here as heavy compact objects such as white dwarfs, neutron stars, and black holes, as well…
Lecture notes on inflation and primordial black holes
Christian T. Byrnes, Philippa S. Cole
These lecture notes are based on those presented at the Theoretical Aspects of Astroparticle Physics, Cosmology and Gravitation School at the Galileo Galilee Institute in Florence…
The power spectrum on small scales: Robust constraints and comparing PBH methodologies
Andrew D. Gow, Christian T. Byrnes, Philippa S. Cole +1
We compare primordial black hole (PBH) constraints on the power spectrum and mass distributions using the traditional Press Schechter formalism, peaks theory, and a recently develo…
Small-scale primordial fluctuations in the 21cm Dark Ages signal
Philippa S. Cole, Joseph Silk
Primordial black hole production in the mass range is motivated respectively by interpretations of the LIGO/Virgo observations of binary black hole merger…
Spectral Distortions of the CMB as a Probe of Inflation, Recombination, Structure Formation and Particle Physics
J. Chluba, A. Kogut, S. P. Patil +98
Following the pioneering observations with COBE in the early 1990s, studies of the cosmic microwave background (CMB) have focused on temperature and polarization anisotropies. CMB…
Electromagnetic probes of primordial black holes as dark matter
Y. Ali-Haimoud, S. Clesse, J. Garcia-Bellido +91
The LIGO discoveries have rekindled suggestions that primordial black holes (BHs) may constitute part to all of the dark matter (DM) in the Universe. Such suggestions came from 1)…
Steepest growth of the power spectrum and primordial black holes
Christian T. Byrnes, Philippa S. Cole, Subodh P. Patil
We derive analytic bounds on the shape of the primordial power spectrum in the context of single-field inflation. In particular, the steepest possible growth has a spectral index o…
Extreme scenarios: the tightest possible constraints on the power spectrum due to primordial black holes
Philippa S. Cole, Christian T. Byrnes
Observational constraints on the abundance of primordial black holes (PBHs) constrain the allowed amplitude of the primordial power spectrum on both the smallest and the largest ra…