activity
19952017
most citedRadio galaxies with a `double-double' morphology: I - Analysis of the radio properties and evidence for interrupted activity in active galactic nuclei

307 citations · 5.5k across the 80 of their papers we have counts for

collaborators
Showing 2012Show all

5 papers · 1 filter

astro-ph.CO2012★ 34 cited

Prospects for detecting the 21cm forest from the diffuse intergalactic medium with LOFAR

B. Ciardi, P. Labropoulos, A. Maselli +20

We discuss the feasibility of the detection of the 21cm forest in the diffuse IGM with the radio telescope LOFAR. The optical depth to the 21cm line has been derived using simulati…

astro-ph.CO2012★ 31 cited

LOFAR insights into the epoch of reionization from the cross power spectrum of 21cm emission and galaxies

R. P. C. Wiersma, B. Ciardi, R. M. Thomas +18

Using a combination of N-body simulations, semi-analytic models and radiative transfer calculations, we have estimated the theoretical cross power spectrum between galaxies and the…

astro-ph.CO2012★ 51 cited

Imaging neutral hydrogen on large-scales during the Epoch of Reionization with LOFAR

S. Zaroubi, A. G. de Bruyn, G. Harker +17

The first generation of redshifted 21 cm detection experiments, carried out with arrays like LOFAR, MWA and GMRT, will have a very low signal-to-noise ratio per resolution element…

astro-ph.IM2012★ 46 cited

Post-correlation filtering techniques for off-axis source and RFI removal

A. R. Offringa, A. G. de Bruyn, S. Zaroubi

Techniques to improve the data quality of interferometric radio observations are considered. Fundaments of fringe frequencies in the uv-plane are discussed and filters are used to…

astro-ph.CO2012★ 181 cited

Foreground Removal using FastICA: A Showcase of LOFAR-EoR

Emma Chapman, Filipe B. Abdalla, Geraint Harker +6

We introduce a new implementation of the FastICA algorithm on simulated LOFAR EoR data with the aim of accurately removing the foregrounds and extracting the 21-cm reionization sig…