Quantum gravity phenomenology at the dawn of the multi-messenger era—A review

A Addazi, J Alvarez-Muniz, RA Batista… - Progress in Particle and …, 2022 - Elsevier
The exploration of the universe has recently entered a new era thanks to the multi-
messenger paradigm, characterized by a continuous increase in the quantity and quality of …

Cosmological phase transitions: From perturbative particle physics to gravitational waves

P Athron, C Balázs, A Fowlie, L Morris, L Wu - Progress in Particle and …, 2024 - Elsevier
Gravitational waves (GWs) were recently detected for the first time. This revolutionary
discovery opens a new way of learning about particle physics through GWs from first-order …

The NANOGrav 15 yr data set: Search for signals from new physics

A Afzal, G Agazie, A Anumarlapudi… - The Astrophysical …, 2023 - iopscience.iop.org
The 15 yr pulsar timing data set collected by the North American Nanohertz Observatory for
Gravitational Waves (NANOGrav) shows positive evidence for the presence of a low …

Cosmology with the laser interferometer space antenna

P Auclair, D Bacon, T Baker, T Barreiro… - Living Reviews in …, 2023 - Springer
Abstract The Laser Interferometer Space Antenna (LISA) has two scientific objectives of
cosmological focus: to probe the expansion rate of the universe, and to understand …

What is the source of the PTA GW signal?

J Ellis, M Fairbairn, G Franciolini, G Hütsi, A Iovino… - Physical Review D, 2024 - APS
The most conservative interpretation of the nHz stochastic gravitational wave background
(SGWB) discovered by NANOGrav and other pulsar timing array (PTA) collaborations is …

First-order phase transition interpretation of pulsar timing array signal is consistent with solar-mass black holes

Y Gouttenoire - Physical Review Letters, 2023 - APS
We perform a Bayesian analysis of NANOGrav 15-yr and IPTA DR2 pulsar timing residuals
and show that the recently detected stochastic gravitational-wave background is compatible …

Cosmic string interpretation of NANOGrav pulsar timing data

J Ellis, M Lewicki - Physical Review Letters, 2021 - APS
Pulsar timing data used to provide upper limits on a possible stochastic gravitational wave
background (SGWB). However, the NANOGrav Collaboration has recently reported strong …

Primordial gravitational waves in the nano-Hertz regime and PTA data—towards solving the GW inverse problem

E Madge, E Morgante, C Puchades-Ibáñez… - Journal of High Energy …, 2023 - Springer
A bstract In recent years, several pulsar timing array collaborations have reported first hints
for a stochastic gravitational wave background at nano-Hertz frequencies. Here we …

Searching for gravitational waves from cosmological phase transitions with the NANOGrav 12.5-year dataset

Z Arzoumanian, PT Baker, H Blumer, B Becsy… - Physical review …, 2021 - APS
We search for a first-order phase transition gravitational wave signal in 45 pulsars from the
NANOGrav 12.5-year dataset. We find that the data can be modeled in terms of a strong first …

Does NANOGrav observe a dark sector phase transition?

T Bringmann, PF Depta, T Konstandin… - … of Cosmology and …, 2023 - iopscience.iop.org
Gravitational waves from a first-order cosmological phase transition, at temperatures at the
MeV-scale, would arguably be the most exciting explanation of the common red spectrum …