activity
20132026
most citedThe second data release from the European Pulsar Timing Array III. Search for gravitational wave signals

1k citations · 7.5k across the 90 of their papers we have counts for

collaborators

89 papers

astro-ph.HE2026

Probing Variations in Earth's Ionosphere Using Pulsars

Yanqing Cai, Ziwei Wu, Weiwei Zhu +24

We present high cadence 10-minute rotation measure (RM) monitoring of PSR~J0814+7429 using the LOw-Frequency ARray, aiming to probe ionospheric variability along the pulsar line of…

astro-ph.HE2026

Exploring the Galactic plasma with pulsars in the SKA Era

Caterina Tiburzi, M. T. Lam, D. J. Reardon +17

The ionised media that permeate the Milky Way have been active topics of research since the discovery of pulsars in 1967. In fact, pulsars allow one to study several aspects of sai…

astro-ph.HE2026

Interplanetary scintillation-informed heliospheric modelling for the MeerKAT Pulsar Timing Array 4.5 yr dataset

Saurav Mishra, Daniel J. Reardon, Andrew Zic +9

Heliospheric density variations impart delays on pulse times of arrivals from millisecond pulsars. Improper modelling of these variations may affect gravitational wave detection an…

astro-ph.IM2026

The SKAO Pulsar Timing Array

Ryan M. Shannon, N. D. Ramesh Bhat, Aurélien Chalumeau +22

Pulsar timing arrays (PTAs) are ensembles of millisecond pulsars observed for years to decades. The primary goal of PTAs is to study gravitational-wave astronomy at nanohertz frequ…

astro-ph.SR2026★ 1 cited

Correlation between active regions' spectra at high radio frequencies and solar flare occurrences

Sara Mulas, Alberto Pellizzoni, Marco Marongiu +31

High radio frequencies observations with the Italian network of large single-dish radio telescopes resulted in ~450 solar images between 2018 and 2023 in K-band frequency range (18…

astro-ph.HE2026

Pulsar scintillation studies with LOFAR III. Annual variations in PSR~J08147429

Yanqing Cai, Ziwei Wu, Weiwei Zhu +27

The interstellar scintillation observed in radio pulsars arises from interference between electromagnetic waves scattered by electron density fluctuations in the turbulent interste…

astro-ph.SR2026

Probing the magnetic field of a coronal mass ejection with PSR J1022+1001

El Mehdi Zahraoui, Hannah T. Rüdisser, Golam M. Shaifullah +24

We investigate whether low-frequency pulsar observations can provide LoS magnetic field estimates and whether these are consistent with synthetic LoS signatures extracted from a th…

astro-ph.HE2025★ 1 cited

The SKAO Pulsar Timing Array

Ryan M. Shannon, N. D. Ramesh Bhat, Aurelien Chalumeau +23

Pulsar timing arrays (PTAs) are ensembles of millisecond pulsars observed for years to decades. The primary goal of PTAs is to study gravitational-wave astronomy at nanohertz frequ…

astro-ph.HE2025★ 1 cited

Exploring Galactic plasma with pulsars in the SKA era

C. Tiburzi, M. T. Lam, D. J. Reardon +14

The ionised media that permeate the Milky Way have been active topics of research since the discovery of pulsars in 1967. In fact, pulsars allow one to study several aspects of sai…

astro-ph.HE2025

Combining the second data release of the European Pulsar Timing Array with low-frequency pulsar data

F. Iraci, A. Chalumeau, C. Tiburzi +46

Low-frequency radio data improve the sensitivity of pulsar timing arrays (PTAs) to propagation effects such as dispersion measure (DM) variations, enabling better noise characteriz…

astro-ph.HE2025★ 2 cited

Long-term Timing Results of Ecliptic Pulsars Observed with I-LOFAR

S. C. Susarla, O. A. Johnson, D. J. McKenna +5

Pulsar timing at low frequencies offers a powerful tool for studying the interstellar medium. Additionally, pulsar observations in the ecliptic enables us to study the effects of t…

astro-ph.HE2024

The impact on astrometry by solar-wind effect in pulsar timing

K. Liu, A. Parthasarathy, M. Keith +16

Astrometry of pulsars, particularly their distances, serves as a critical input for various astrophysical experiments using pulsars. Pulsar timing is a primary approach for determi…

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…

astro-ph.HE2024

Pulsar timing methods for evaluating dispersion measure time series

F. Iraci, A. Chalumeau, C. Tiburzi +9

Radio pulsars allow the study of the ionised interstellar medium and its dispersive effects, a major noise source in gravitational wave searches using pulsars. In this paper, we co…

astro-ph.SR2024★ 17 cited

Exploring the time variability of the Solar Wind using LOFAR pulsar data

S. C. Susarla, A. Chalumeau, C. Tiburzi +22

High-precision pulsar timing is highly dependent on precise and accurate modeling of any effects that impact the data. It was shown that commonly used Solar Wind models do not accu…

astro-ph.HE2024★ 1 cited

Eighteen new fast radio bursts in the High Time Resolution Universe survey

M. Trudu, A. Possenti, M. Pilia +16

Current observational evidence reveals that fast radio bursts (FRBs) exhibit bandwidths ranging from a few dozen MHz to several GHz. Traditional FRB searches primarily employ match…

astro-ph.SR2024

Study of solar brightness profiles in the 18-26 GHz frequency range with INAF radio telescopes II. Evidence for coronal emission

M. Marongiu, A. Pellizzoni, S. Righini +43

One of the most important objectives of solar physics is the physical understanding of the solar atmosphere, the structure of which is also described in terms of the density (N) an…

astro-ph.SR2024

Study of solar brightness profiles in the 18-26 GHz frequency range with INAF radio telescopes I: solar radius

M. Marongiu, A. Pellizzoni, S. Mulas +32

The Sun is an extraordinary workbench, from which several fundamental astronomical parameters can be measured with high precision. Among these parameters, the solar radius $R_{\odo…

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

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★ 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.SR2023★ 9 cited

Validation of heliospheric modeling algorithms through pulsar observations I: Interplanetary scintillation-based tomography

C. Tiburzi, B. V. Jackson, L. Cota +4

Solar-wind 3-D reconstruction tomography based on interplanetary scintillation (IPS) studies provides fundamental information for space-weather forecasting models, and gives the po…

astro-ph.SR2023★ 7 cited

Validation of heliospheric modeling algorithms through pulsar observations II: simulations with EUHFORIA

G. M. Shaifullah, J. Magdalenic, C. Tiburzi +3

In space weather studies and forecasting we employ magnetohydrodynamic (MHD) simulations which can provide rather accurate reconstruction of the solar wind dynamics and its evoluti…