activity
20222024
most citedThe second data release from the European Pulsar Timing Array III. Search for gravitational wave signals

1k citations · 1.7k across the 10 of their papers we have counts for

collaborators

10 papers

astro-ph.HE2024

Periodicity search in the timing of the 25 millisecond pulsars from the second data release of the European Pulsar Timing Array

Iuliana Nitu, Michael Keith, David Champion +17

In this work, we investigated the presence of strictly periodic, as well as quasi-periodic signals, in the timing of the 25 millisecond pulsars from the EPTA DR2 dataset. This is e…

astro-ph.HE2024

A Gaussian-processes approach to fitting for time-variable spherical solar wind in pulsar timing data

Iuliana C. Niţu, Michael J. Keith, Caterina Tiburzi +26

Propagation effects are one of the main sources of noise in high-precision pulsar timing. For pulsars below an ecliptic latitude of , the ionised plasma in the solar wind…

astro-ph.HE2023★ 320 cited

The second data release from the European Pulsar Timing Array I. The dataset and timing analysis

J. Antoniadis, S. Babak, A. -S. Bak Nielsen +66

Pulsar timing arrays offer a probe of the low-frequency gravitational wave spectrum (1 - 100 nanohertz), which is intimately connected to a number of markers that can uniquely trac…

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★ 17 cited

Impact of quasi-periodic and steep-spectrum timing noise on the measurement of pulsar timing parameters

Michael J. Keith, Iuliana C. Niţu

Timing noise in pulsars is often modelled with a Fourier-basis Gaussian process that follows a power law with periodic boundary conditions on the observation time, $T_\mathrm{span}…

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…

astro-ph.HE2022★ 15 cited

Discoveries and Timing of Pulsars in NGC 6440

L. Vleeschower, B. W. Stappers, M. Bailes +19

Using the MeerKAT radio telescope, a series of observations have been conducted to time the known pulsars and search for new pulsars in the globular cluster NGC 6440. As a result,…

astro-ph.EP2022★ 24 cited

A search for planetary companions around 800 pulsars from the Jodrell Bank pulsar timing programme

Iuliana C. Niţu, Michael J. Keith, Ben W. Stappers +2

We have searched for planetary companions around 800 pulsars monitored at the Jodrell Bank Observatory, with both circular and eccentric orbits of periods between days and $17…