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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…
The LOFAR radio environment
A. R. Offringa, A. G. de Bruyn, S. Zaroubi +93
Aims: This paper discusses the spectral occupancy for performing radio astronomy with the Low-Frequency Array (LOFAR), with a focus on imaging observations. Methods: We have analys…
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…
The Scale of the Problem : Recovering Images of Reionization with GMCA
Emma Chapman, Filipe B. Abdalla, J. Bobin +8
The accurate and precise removal of 21-cm foregrounds from Epoch of Reionization redshifted 21-cm emission data is essential if we are to gain insight into an unexplored cosmologic…
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…
Wide-band Simultaneous Observations of Pulsars: Disentangling Dispersion Measure and Profile Variations
T. E. Hassall, B. W. Stappers, J. W. T. Hessels +91
Dispersion in the interstellar medium is a well known phenomenon that follows a simple relationship, which has been used to predict the time delay of dispersed radio pulses since t…