activity
20232026
most citedThe second data release from the European Pulsar Timing Array III. Search for gravitational wave signals

1k citations · 1.3k across the 7 of their papers we have counts for

collaborators

10 papers

astro-ph.HE2026

Probing past mergers of supermassive black holes with pulsar timing arrays: The role of pulsar terms

Hippolyte Quelquejay Leclere

By monitoring the times of arrival of radio pulses from millisecond pulsars, Pulsar Timing Arrays (PTAs) serve as unique gravitational wave (GW) laboratories in the nanohertz band.…

astro-ph.GA2025★ 2 cited

The multimessenger view of Pulsar Timing Array black holes with the Horizon-AGN simulation

Hippolyte Quelquejay Leclere, Kunyang Li, Marta Volonteri +5

We use the Horizon-AGN cosmological simulation to study the properties of supermassive black hole binaries (MBHBs) contributing most to the gravitational wave background (GWB) sign…

astro-ph.CO2024

Searches for signatures of ultra-light axion dark matter in polarimetry data of the European Pulsar Timing Array

N. K. Porayko, P. Usynina, J. Terol-Calvo +74

Ultra-light axion-like particles (ALPs) can be a viable solution to the dark matter problem. The scalar field associated with ALPs, coupled to the electromagnetic field, acts as an…

gr-qc2024

From eccentric binaries to nonstationary gravitational wave backgrounds

Mikel Falxa, Hippolyte Quelquejay Leclere, Alberto Sesana

A large population of binary systems in the Universe emitting gravitational waves (GW) would produce a stochastic noise, known as the gravitational wave background (GWB). The prope…

astro-ph.GA2024★ 4 cited

Reconciling PTA and JWST and preparing for LISA with POMPOCO: a Parametrisation Of the Massive black hole POpulation for Comparison to Observations

A. Toubiana, L. Sberna, M. Volonteri +7

We develop a parametrised model to describe the formation and evolution of massive black holes, designed for comparisons with both electromagnetic and gravitational wave observatio…

astro-ph.HE2023

Comparing recent PTA results on the nanohertz stochastic gravitational wave background

The International Pulsar Timing Array Collaboration, G. Agazie, J. Antoniadis +242

The Australian, Chinese, European, Indian, and North American pulsar timing array (PTA) collaborations recently reported, at varying levels, evidence for the presence of a nanohert…

astro-ph.HE2023★ 1k cited

The second data release from the European Pulsar Timing Array III. Search for gravitational wave signals

J. Antoniadis, P. Arumugam, S. Arumugam +95

We present the results of the search for an isotropic stochastic gravitational wave background (GWB) at nanohertz frequencies using the second data release of the European Pulsar T…

astro-ph.HE2023★ 79 cited

The second data release from the European Pulsar Timing Array: VI. Challenging the ultralight dark matter paradigm

Clemente Smarra, Boris Goncharov, Enrico Barausse +68

Pulsar Timing Array experiments probe the presence of possible scalar or pseudoscalar ultralight dark matter particles through decade-long timing of an ensemble of galactic millise…

astro-ph.CO2023★ 111 cited

The second data release from the European Pulsar Timing Array: IV. Implications for massive black holes, dark matter and the early Universe

J. Antoniadis, P. Arumugam, S. Arumugam +111

The European Pulsar Timing Array (EPTA) and Indian Pulsar Timing Array (InPTA) collaborations have measured a low-frequency common signal in the combination of their second and fir…

astro-ph.HE2023★ 76 cited

The second data release from the European Pulsar Timing Array V. Search for continuous gravitational wave signals

J. Antoniadis, P. Arumugam, S. Arumugam +97

We present the results of a search for continuous gravitational wave signals (CGWs) in the second data release (DR2) of the European Pulsar Timing Array (EPTA) collaboration. The m…