110 citations · 423 across the 13 of their papers we have counts for
14 papers
Deep learning-based deconvolution for interferometric radio transient reconstruction
Benjamin Naoto Chiche, Julien N. Girard, Joana Frontera-Pons +2
Radio astronomy is currently thriving with new large ground-based radio telescopes coming online in preparation for the upcoming Square Kilometre Array (SKA). Facilities like LOFAR…
Determining the beaming of Io decametric emissions : a remote diagnostic to probe the Io-Jupiter interaction
L. Lamy, L. Colomban, P. Zarka +8
We investigate the beaming of 11 Io-Jupiter decametric (Io-DAM) emissions observed by Juno/Waves, the Nan\c cay Decameter Array and NenuFAR. Using an up-to-date magnetic field mode…
Pilot study and early results of the Cosmic Filaments and Magnetism Survey with Nenufar: the Coma cluster field
Bonnassieux Etienne, Evangelia Tremou, Julien N. Girard +9
NenuFAR, the New Extension in Nancay Upgrading LOFAR, is currently in its early science phase. It is in this context that the Cosmic Filaments and Magnetism Pilot Survey is observi…
Dual-frequency single-pulse study of PSR B0950+08
A. V. Bilous, J. M. Griessmeier, T. Pennucci +33
PSR B0950+08 is a bright non-recycled pulsar whose single-pulse fluence variability is reportedly large. Based on observations at two widely separated frequencies, 55 MHz (NenuFAR)…
A broadband radio study of PSR J0250+5854: the slowest-spinning radio pulsar known
C. H. Agar, P. Weltevrede, L. Bondonneau +19
We present radio observations of the most slowly rotating known radio pulsar PSR J0250+5854. With a 23.5 s period, it is close, or even beyond, the - diagram region tho…
Observations of shock propagation through turbulent plasma in the solar corona
Eoin P. Carley, Baptiste Cecconi, Hamish A. Reid +14
Eruptive activity in the solar corona can often lead to the propagation of shock waves. In the radio domain the primary signature of such shocks are type II radio bursts, observed…
Galaxy Image Restoration with Shape Constraint
Fadi Nammour, Morgan A. Schmitz, Fred Maurice Ngolè Mboula +2
Images acquired with a telescope are blurred and corrupted by noise. The blurring is usually modeled by a convolution with the Point Spread Function and the noise by Additive Gauss…
The search for radio emission from the exoplanetary systems 55 Cancri, Andromedae, and Boötis using LOFAR beam-formed observations
Jake D. Turner, Philippe Zarka, Jean-Mathias Grießmeier +8
Observing planetary auroral radio emission is the most promising method to detect exoplanetary magnetic fields, the knowledge of which will provide valuable insights into the plane…
Pulsars with NenuFAR: backend and pipelines
L. Bondonneau, J. -M. Grießmeier, G. Theureau +27
NenuFAR (New extension in Nançay upgrading LoFAR) is a new radio telescope developed and built on the site of the Nançay Radio Observatory. It is designed to observe the largely un…
Primary beam effects of radio astronomy antennas -- II. Modelling the MeerKAT L-band beam
K. M. B. Asad, J. N. Girard, M. de Villers +12
After a decade of design and construction, South Africa's SKA-MID precursor MeerKAT has begun its science operations. To make full use of the widefield capability of the array, it…
Kliko - The Scientific Compute Container Format
Gijs Molenaar, Spheshile Makhathini, Julien N. Girard +1
Kliko is a Docker-based container specification for running one or multiple related compute jobs. The key concepts of Kliko are the encapsulation of data processing software into a…
NOIRE Study Report: Towards a Low Frequency Radio Interferometer in Space
Baptiste Cecconi, Moustapha Dekkali, Carine Briand +13
Ground based low frequency radio interferometers have been developed in the last decade and are providing the scientific community with high quality observations. Conversely, curre…
Sparse representations and convex optimization as tools for LOFAR radio interferometric imaging
Julien N. Girard, Hugh Garsden, Jean Luc Starck +5
Compressed sensing theory is slowly making its way to solve more and more astronomical inverse problems. We address here the application of sparse representations, convex optimizat…
LOFAR Sparse Image Reconstruction
H. Garsden, J. N. Girard, J. L. Starck +77
Context. The LOw Frequency ARray (LOFAR) radio telescope is a giant digital phased array interferometer with multiple antennas distributed in Europe. It provides discrete sets of F…